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Home > MA Providers > Spine Surgeons

Dr. Mark A. Lapp, MD

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Specializes in: Spine Surgery and Orthopedic Trauma

Stony Brook University Medical Center, School of Medicine

Professional interests include: herniated disc, ankle problems, neck pain, and more.

14 Research Place North Chelmsford
Chelmsford, MA 01863

(978) 454-0706

Dr. Mark A. Lapp, MD is a spine surgeon in Chelmsford, MA specializing in spine surgery and orthopedic trauma. He graduated from Stony Brook University Medical Center, School of Medicine. Dr. Mark A. Lapp, MD is affiliated with Tufts Medicine and ORTHOPAEDIC SURGICAL ASSOCIATES OF LOWELL, P.C..

Office Locations

14 Research Place North Chelmsford
Chelmsford, MA 01863

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Some issues Dr. Mark A. Lapp, MD can help you with:

Replacement Arthroplasty (Joint Replacement)

Joint replacement, sometimes also called arthroplasty, is an option when a joint becomes severely damaged by disease or injury. The damaged cartilage of the joint is surgically removed, the ends of the bones in the joint are resurfaced, and a prosthetic is installed. Most prosthetic joints are made of a metal piece that fits into a plastic sleeve so that they glide smoothly. A joint replacement increases stability in the damaged area and decreases pain. The hip and knee are the two joints most commonly replaced, but joint replacement can also be performed on the ankle, shoulder, elbow and even fingers.

Although joint replacement is one of the safest and most reliable medical procedures available, it is still a major surgical procedure. All surgical procedures carry risks, such as infection or blood clots. For this reason, doctors try to help their patients avoid surgery for as long as they can. Taking arthritis medications, losing weight, avoiding high impact sports such as running, taking supplements such as glucosamine or chondroitin, or having joint injections may allow a patient to enjoy life without the need for surgery.

After having joint replacement surgery, patients can expect some pain the first few days as they recover. Physical therapy is an important part of recovery, and it can decrease complications and increase future mobility. As soon as possible, returning to low impact sports such as swimming, walking or biking can stretch and heal the new joint. A prosthetic joint can last 15 - 20 years and cannot be further damaged by degenerative diseases such as arthritis, so once it is done patients should be pain-free for many years.

Noteworthy Medicare Patient Procedures Performed by Dr. Mark A. Lapp, MD in 2023

Click on any procedure below to see further details on volume and pricing among Medicare patients.

Top 5%

By Volume:

360-degree lumbar fusion

decompressive lumbar laminectomy

injections

laminectomy

laminectomy with foraminotomy and facetectomy

nerve block

pain management

selective nerve root block

spinal decompression surgery

spinal fusion

spinal procedures

spine X-ray

subarachnoid block with local anesthetic

transforaminal epidural steroid injection

In 2023, Dr. Mark A. Lapp, MD performed more 360-degree lumbar fusion, decompressive lumbar laminectomy, injections, laminectomy, laminectomy with foraminotomy and facetectomy, nerve block, pain management, selective nerve root block (SNRB), spinal decompression surgery, spinal fusion, spinal procedures, spine X-ray, subarachnoid block with local anesthetic (numbing medicine), and transforaminal epidural steroid injection procedures for Medicare patients than 95% of providers in related specialties within Massachusetts.

Top 10%

By Volume:

X-rays

In 2023, Dr. Mark A. Lapp, MD performed more X-rays procedures for Medicare patients than 90% of providers in related specialties within Massachusetts.

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Mark A. Lapp, MD treated as a spine surgeon in Chelmsford, MA during 2013 were spinal procedures, X-rays, injections and pain management.

Volume of procedures performed by Dr. Mark A. Lapp, MD for Medicare patients.

arthrodesis (bone fusion surgery)	19
aspiration	38
decompression surgery	42
doctor visit	777
hip imaging	26
hospital care	55
image guided procedures	44
injections	249
inpatient care	55
minimally invasive procedures	44
musculoskeletal imaging	26
nerve block	167
nerve procedures	42
pain management	211
pelvic imaging	50
spinal procedures	1312
X-rays	1076

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark A. Lapp, MD.

**Gender**
Male	171
Female	271

**Ethnicity**
Non-Hispanic White	402
Black	0
Hispanic	23
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	181
From 75 to 84	129
85 and over	50
Less than 65	82

Conditions of Medicare patients treated by Dr. Mark A. Lapp, MD in 2013

The most common conditions of Medicare patients that Dr. Mark A. Lapp, MD treated during 2013 were hypertension, high cholesterol, depression and ischemic heart disease.

Hypertension	75
High Cholesterol	65
Stroke	8
Ischemic Heart Disease	36
Depression	38
Chronic Kidney Disease	26
Asthma	11
Osteoperosis	18
Atrial Fibrilation	14
Heart Failure	15
Chronic Obstructive Pulmonary Disease	21
Diabetes	34
Dementia	10
Cancer	13

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Mark A. Lapp, MD treated as a spine surgeon in Chelmsford, MA during 2014 were spinal procedures, X-rays, injections and pain management.

Volume of procedures performed by Dr. Mark A. Lapp, MD for Medicare patients.

arthrodesis (bone fusion surgery)	16
aspiration	35
decompression surgery	41
doctor visit	823
hospital care	46
image guided procedures	34
injections	268
inpatient care	46
minimally invasive procedures	34
nerve block	199
nerve procedures	41
pain management	233
pelvic imaging	39
spinal procedures	1342
X-rays	1058

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark A. Lapp, MD.

**Gender**
Male	178
Female	289

**Ethnicity**
Non-Hispanic White	422
Black	0
Hispanic	24
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	191
From 75 to 84	129
85 and over	50
Less than 65	97

Conditions of Medicare patients treated by Dr. Mark A. Lapp, MD in 2014

The most common conditions of Medicare patients that Dr. Mark A. Lapp, MD treated during 2014 were hypertension, high cholesterol, depression and diabetes.

Hypertension	73
High Cholesterol	60
Stroke	4
Ischemic Heart Disease	31
Depression	33
Chronic Kidney Disease	25
Asthma	9
Osteoperosis	20
Atrial Fibrilation	10
Heart Failure	14
Chronic Obstructive Pulmonary Disease	16
Diabetes	31
Dementia	8
Cancer	10

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Mark A. Lapp, MD treated as a spine surgeon in Chelmsford, MA during 2015 were spinal procedures, X-rays, injections and pain management.

Volume of procedures performed by Dr. Mark A. Lapp, MD for Medicare patients.

arthrodesis (bone fusion surgery)	13
aspiration	35
decompression surgery	43
doctor visit	802
hospital care	47
image guided procedures	34
injections	281
inpatient care	47
minimally invasive procedures	34
nerve block	212
nerve procedures	43
pain management	246
pelvic imaging	37
spinal procedures	1361
X-rays	1043

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark A. Lapp, MD.

**Gender**
Male	294
Female	606

**Ethnicity**
Non-Hispanic White	828
Black	0
Hispanic	48
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	366
From 75 to 84	284
85 and over	80
Less than 65	170

Conditions of Medicare patients treated by Dr. Mark A. Lapp, MD in 2015

The most common conditions of Medicare patients that Dr. Mark A. Lapp, MD treated during 2015 were hypertension, high cholesterol, depression and diabetes.

Hypertension	71
High Cholesterol	63
Stroke	6
Ischemic Heart Disease	30
Depression	36
Chronic Kidney Disease	25
Asthma	14
Osteoperosis	18
Atrial Fibrilation	11
Heart Failure	17
Chronic Obstructive Pulmonary Disease	15
Diabetes	34
Dementia	11
Cancer	12

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Mark A. Lapp, MD treated as a spine surgeon in Chelmsford, MA during 2016 were spinal procedures, X-rays, injections and pain management.

Volume of procedures performed by Dr. Mark A. Lapp, MD for Medicare patients.

arthrodesis (bone fusion surgery)	21
aspiration	41
decompression surgery	71
doctor visit	828
hospital care	34
image guided procedures	31
injections	271
inpatient care	34
minimally invasive procedures	31
nerve block	199
nerve procedures	71
pain management	230
revision surgery	14
spinal procedures	1459
X-rays	1093

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark A. Lapp, MD.

**Gender**
Male	158
Female	289

**Ethnicity**
Non-Hispanic White	404
Black	0
Hispanic	20
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	199
From 75 to 84	118
85 and over	38
Less than 65	92

Conditions of Medicare patients treated by Dr. Mark A. Lapp, MD in 2016

The most common conditions of Medicare patients that Dr. Mark A. Lapp, MD treated during 2016 were hypertension, high cholesterol, depression and ischemic heart disease.

Hypertension	68
High Cholesterol	61
Stroke	6
Ischemic Heart Disease	33
Depression	38
Chronic Kidney Disease	32
Asthma	21
Osteoperosis	15
Atrial Fibrilation	12
Heart Failure	18
Chronic Obstructive Pulmonary Disease	17
Diabetes	32
Dementia	9
Cancer	11

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Mark A. Lapp, MD treated as a spine surgeon in Chelmsford, MA during 2017 were spinal procedures, X-rays, injections and pain management.

Volume of procedures performed by Dr. Mark A. Lapp, MD for Medicare patients.

arthrodesis (bone fusion surgery)	17
aspiration	26
decompression surgery	59
doctor visit	798
hospital care	29
image guided procedures	15
injections	266
inpatient care	29
minimally invasive procedures	15
nerve block	205
nerve procedures	59
pain management	240
spinal procedures	1422
X-rays	1049

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark A. Lapp, MD.

**Gender**
Male	156
Female	279

**Ethnicity**
Non-Hispanic White	394
Black	0
Hispanic	20
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	203
From 75 to 84	117
85 and over	45
Less than 65	70

Conditions of Medicare patients treated by Dr. Mark A. Lapp, MD in 2017

The most common conditions of Medicare patients that Dr. Mark A. Lapp, MD treated during 2017 were hypertension, high cholesterol, depression and ischemic heart disease.

Hypertension	74
High Cholesterol	50
Stroke	6
Ischemic Heart Disease	34
Depression	34
Chronic Kidney Disease	29
Asthma	12
Osteoperosis	14
Atrial Fibrilation	9
Heart Failure	18
Chronic Obstructive Pulmonary Disease	20
Diabetes	33
Dementia	11
Cancer	8

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Mark A. Lapp, MD treated as a spine surgeon in Chelmsford, MA during 2018 were spinal procedures, X-rays, injections and pain management.

Volume of procedures performed by Dr. Mark A. Lapp, MD for Medicare patients.

arthrodesis (bone fusion surgery)	23
aspiration	51
decompression surgery	38
doctor visit	886
hospital care	31
image guided procedures	12
injections	323
inpatient care	31
minimally invasive procedures	12
nerve block	260
nerve procedures	38
pain management	272
pelvic imaging	41
spinal procedures	1137
X-rays	802

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark A. Lapp, MD.

**Gender**
Male	174
Female	296

**Ethnicity**
Non-Hispanic White	427
Black	0
Hispanic	25
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	206
From 75 to 84	145
85 and over	37
Less than 65	82

Conditions of Medicare patients treated by Dr. Mark A. Lapp, MD in 2018

The most common conditions of Medicare patients that Dr. Mark A. Lapp, MD treated during 2018 were hypertension, high cholesterol, depression and ischemic heart disease.

Hypertension	73
High Cholesterol	63
Stroke	5
Ischemic Heart Disease	34
Depression	37
Chronic Kidney Disease	29
Asthma	13
Osteoperosis	15
Atrial Fibrilation	11
Heart Failure	17
Chronic Obstructive Pulmonary Disease	16
Diabetes	29
Dementia	10
Cancer	11

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Mark A. Lapp, MD treated as a spine surgeon in Chelmsford, MA during 2019 were spinal procedures, X-rays, injections and nerve block.

Volume of procedures performed by Dr. Mark A. Lapp, MD for Medicare patients.

arthrodesis (bone fusion surgery)	18
aspiration	27
decompression surgery	32
doctor visit	912
hospital care	49
injections	289
inpatient care	49
nerve block	262
nerve procedures	32
pain management	262
pelvic imaging	25
spinal procedures	919
X-rays	588

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark A. Lapp, MD.

**Gender**
Male	183
Female	296

**Ethnicity**
Non-Hispanic White	436
Black	0
Hispanic	23
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	196
From 75 to 84	151
85 and over	53
Less than 65	79

Conditions of Medicare patients treated by Dr. Mark A. Lapp, MD in 2019

The most common conditions of Medicare patients that Dr. Mark A. Lapp, MD treated during 2019 were hypertension, high cholesterol, ischemic heart disease and chronic kidney disease.

Hypertension	72
High Cholesterol	67
Stroke	6
Ischemic Heart Disease	39
Depression	38
Chronic Kidney Disease	38
Asthma	11
Osteoperosis	16
Atrial Fibrilation	12
Heart Failure	20
Chronic Obstructive Pulmonary Disease	19
Diabetes	33
Dementia	9
Cancer	12

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Mark A. Lapp, MD treated as a spine surgeon in Chelmsford, MA during 2020 were spinal procedures, X-rays, injections and pain management.

Volume of procedures performed by Dr. Mark A. Lapp, MD for Medicare patients.

arthrodesis (bone fusion surgery)	14
aspiration	41
decompression surgery	33
doctor visit	810
hospital care	16
image guided procedures	12
injections	270
inpatient care	16
minimally invasive procedures	12
nerve block	217
nerve procedures	33
pain management	229
pelvic imaging	15
spinal procedures	839
X-rays	546

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark A. Lapp, MD.

**Gender**
Male	177
Female	247

**Ethnicity**
Non-Hispanic White	385
Black	0
Hispanic	23
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	180
From 75 to 84	143
85 and over	36
Less than 65	65

Conditions of Medicare patients treated by Dr. Mark A. Lapp, MD in 2020

The most common conditions of Medicare patients that Dr. Mark A. Lapp, MD treated during 2020 were hypertension, high cholesterol, ischemic heart disease and chronic kidney disease.

Hypertension	70
High Cholesterol	60
Stroke	5
Ischemic Heart Disease	35
Depression	34
Chronic Kidney Disease	34
Asthma	10
Osteoperosis	13
Atrial Fibrilation	12
Heart Failure	18
Chronic Obstructive Pulmonary Disease	18
Diabetes	30
Dementia	9
Cancer	10

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Mark A. Lapp, MD treated as a spine surgeon in Chelmsford, MA during 2021 were spinal procedures, X-rays, injections and nerve block.

Volume of procedures performed by Dr. Mark A. Lapp, MD for Medicare patients.

arthrodesis (bone fusion surgery)	21
aspiration	59
decompression surgery	51
doctor visit	975
injections	338
nerve block	279
nerve procedures	51
pain management	279
spinal procedures	920
X-rays	528

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark A. Lapp, MD.

**Gender**
Male	211
Female	242

**Ethnicity**
Non-Hispanic White	405
Black	0
Hispanic	28
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	182
From 75 to 84	164
85 and over	38
Less than 65	69

Conditions of Medicare patients treated by Dr. Mark A. Lapp, MD in 2021

The most common conditions of Medicare patients that Dr. Mark A. Lapp, MD treated during 2021 were hypertension, high cholesterol, ischemic heart disease and chronic kidney disease.

Hypertension	70
High Cholesterol	68
Stroke	4
Ischemic Heart Disease	35
Depression	29
Chronic Kidney Disease	31
Asthma	9
Osteoperosis	11
Atrial Fibrilation	9
Heart Failure	17
Chronic Obstructive Pulmonary Disease	13
Diabetes	26
Dementia	5
Cancer	12

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Mark A. Lapp, MD treated as a spine surgeon in Chelmsford, MA during 2022 were spinal procedures, X-rays, injections and nerve block.

Volume of procedures performed by Dr. Mark A. Lapp, MD for Medicare patients.

arthrodesis (bone fusion surgery)	24
aspiration	38
decompression surgery	33
doctor visit	913
injections	282
nerve block	244
nerve procedures	33
pain management	244
spinal procedures	864
X-rays	526

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark A. Lapp, MD.

**Gender**
Male	196
Female	251

**Ethnicity**
Non-Hispanic White	408
Black	0
Hispanic	25
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	205
From 75 to 84	168
85 and over	29
Less than 65	45

Conditions of Medicare patients treated by Dr. Mark A. Lapp, MD in 2022

The most common conditions of Medicare patients that Dr. Mark A. Lapp, MD treated during 2022 were high cholesterol, hypertension, diabetes and ischemic heart disease.

Hypertension	75
High Cholesterol	75
Stroke	6
Ischemic Heart Disease	30
Depression	25
Chronic Kidney Disease	25
Asthma	11
Osteoperosis	19
Atrial Fibrilation	16
Heart Failure	15
Chronic Obstructive Pulmonary Disease	15
Diabetes	30
Dementia	3
Cancer	16

Medicare Procedure and Patient Information

2023 Medicare Procedure Volume

The top procedures that Dr. Mark A. Lapp, MD treated as a spine surgeon in Chelmsford, MA during 2023 were spinal procedures, X-rays, injections and nerve block.

Volume of procedures performed by Dr. Mark A. Lapp, MD for Medicare patients.

arthrodesis (bone fusion surgery)	18
aspiration	17
decompression surgery	35
doctor visit	867
injections	243
nerve block	226
nerve procedures	35
pain management	226
spinal procedures	787
X-rays	483

2023 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark A. Lapp, MD.

**Gender**
Male	186
Female	251

**Ethnicity**
Non-Hispanic White	388
Black	0
Hispanic	25
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	183
From 75 to 84	175
85 and over	41
Less than 65	38

Conditions of Medicare patients treated by Dr. Mark A. Lapp, MD in 2023

The most common conditions of Medicare patients that Dr. Mark A. Lapp, MD treated during 2023 were high cholesterol, hypertension, diabetes and depression.

Hypertension	75
High Cholesterol	75
Stroke	9
Ischemic Heart Disease	28
Depression	29
Chronic Kidney Disease	28
Asthma	14
Osteoperosis	20
Atrial Fibrilation	13
Heart Failure	19
Chronic Obstructive Pulmonary Disease	19
Diabetes	30
Dementia	5
Cancer	19

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2013 - 2023

Volume of procedures performed by Dr. Mark A. Lapp, MD for Medicare patients.

The highest averages for the top procedures that Dr. Mark A. Lapp, MD treated as a spine surgeon in Chelmsford, MA were spinal procedures, X-rays, injections and pain management.

arthrodesis (bone fusion surgery)	18
aspiration	37
decompression surgery	43
doctor visit	853
hip imaging	26
hospital care	38
image guided procedures	26
injections	280
inpatient care	38
minimally invasive procedures	26
musculoskeletal imaging	26
nerve block	224
nerve procedures	43
pain management	242
pelvic imaging	34
revision surgery	14
spinal procedures	1123
X-rays	799

Average Medicare Patient Data From 2013 - 2023

Information about Medicare patients treated by Dr. Mark A. Lapp, MD.

**Gender**
Male	189
Female	301

**Ethnicity**
Black / African American	0
Asian / Pacific Islander	0
Non-Hispanic White	445
Hispanic	25
Native American / Alaskan Native	0
Other	0

**Age**
75 to 84	156
85 and over	45
Less than 65	80
65 to 74	208

Average of Total of Conditions of Medicare patients treated by Dr. Mark A. Lapp, MD From 2013 - 2023

The highest averages of the most common conditions of Medicare patients that Dr. Mark A. Lapp, MD treated were hypertension, high cholesterol, depression and ischemic heart disease.

Hypertension	72
High Cholesterol	64
Stroke	5
Ischemic Heart Disease	33
Depression	33
Chronic Kidney Disease	29
Asthma	12
Osteoporosis	16
Heart Failure	17
Chronic Obstructive Pulmonary Disease	17
Diabetes	31
Atrial Fibrillation	11
Dementia	8
Cancer	12

Education & Training

Dr. Mark A. Lapp, MD graduated from Stony Brook University Medical Center, School of Medicine. He completed residency at Tufts Medical Center. He is certified by the Board Certification: Orthopedics and has a state license in Massachusetts.

Medical School: Stony Brook University Medical Center, School of Medicine

Residency: Tufts Medical Center

Board Certification: Board Certification: Orthopedics

Licensed In: Massachusetts

Affiliations & Hospitals

Dr. Mark A. Lapp, MD is associated with these hospitals and organizations:

Tufts Medicine

ORTHOPAEDIC SURGICAL ASSOCIATES OF LOWELL, P.C.

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General Payments

These charts describe general payments received by Dr. Mark A. Lapp, MD. Doctors may receive payments for a number of reasons, including meal compensation, travel compensation, and consulting.

**Payments by Company**
Carlsmed, Inc.	$8,853 aprevo $8,853
Cerapedics Inc.	$3,374 I-FACTOR PEPTIDE ENHANCED BONE GRAFT $3,374
DePuy Orthopaedics Inc.	$2,134 CONFIDENCE $2,054	Neuromodulation $80
DePuy Synthes Products, Inc.	$900 $900
DePuy Synthes Sales Inc.	$553 EXPEDIUM $185	ACCS $143	CONDUIT $106	Spine $92	VERTECEM $27
Other	$601 Navio PFS System $91	Spinal Implant $30	Symphony $20	Zilretta $16	Interventional Therapies $15	Other $430

**Types of Payments**
Consulting Fee	$10,401
Travel and Lodging	$3,456
Food and Beverage	$2,531
Education	$28

Biography

Dr. Mark Lapp is a physician who specializes in orthopedic trauma and spine surgery. Areas of expertise for Dr. Lapp include cervical (neck) spine problems, herniated disc, and minimally invasive procedures. Dr. Lapp is a graduate of Stony Brook University Medical Center, School of Medicine. His training includes a residency program at Tufts Medical Center. Dr. Lapp has received the following distinction: "Top Doctor", Boston Magazine. He is affiliated with Tufts Medicine. His practice in North Chelmsford, MA is open to new patients as reported by Tufts Medicine.