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Dr. John D. Cahoy, MD, PHD

Accepting New Patients

(Dr. John David Cahoy, PH.D.)

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Specializes in: Pediatric Orthopedics/Orthopedic Surgery

Stanford University School of Medicine

Professional interests include: sports injuries, musculoskeletal problems, scoliosis

133 Littleton Road Suite 104
Westford, MA 01886

(978) 369-5391

Dr. John D. Cahoy, MD, PHD is a pediatric orthopedist in Westford, MA specializing in pediatric orthopedics/orthopedic surgery. He graduated from Stanford University School of Medicine. Dr. John D. Cahoy, MD, PHD is affiliated with Emerson Health and ORTHOPEDIC AFFILIATES INC.

Office Locations

Emerson Health

133 Littleton Road Suite 104
Westford, MA 01886

(978) 369-5391

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34 Highland Commons East
Hudson, MA 01749

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54 Baker Avenue Extension Suite 200
Concord, MA 01742

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Some issues Dr. John D. Cahoy, MD, PHD can help you with:

Musculoskeletal Problems

The musculoskeletal system refers collectively to the bones, joints, ligaments, muscles, and nerves. It is what gives the body structure and movement. Because this system encompasses so much of the body, musculoskeletal problems are extremely varied and can happen almost anywhere. There are musculoskeletal problems that affect only the joints, those that affect the bones, those that affect tendons and ligaments, and those that can happen in any area of the body but cause pain and numbness.

Joint problems include bursitis and arthritis. Bursitis is the inflammation of a fluid-filled sac cushion on the outside of a joint, causing symptoms including pain and swelling. Arthritis is the inflammation and damage of a joint due to wear and tear or disease. There are several treatments for arthritis, but if the damage progresses far enough, joint replacement may be necessary. In joint replacement, a metal or plastic implant is surgically placed within the joint to make movement easier.

Bone problems include scoliosis, fractures, and osteoporosis. Scoliosis is a curvature of the spine, making the normally straight spine look like a 'C' or 'S.' It is treated with braces or surgery. Osteoporosis is a disease that causes bones to weaken and break easily. It's most common in women, especially older women. Fully half of all women over 65 have osteoporosis. Fractures are any break in the bone. They can be a simple crack or a severe and complicated shatter. Osteoporosis causes fractures in people who have it, but other causes are trauma (such as a fall) or overuse.

Tendon and ligament problems most often result from injury or overuse. Two good examples are ligament tears and tendonitis. The most common ligament tear is the ACL tear in the knee. This ligament supports and stabilizes the knee and is most often torn during sports activities. Tendonitis happens when a tendon, which connects muscles and bones together, becomes irritated and inflamed. This happens most often in older patients who push their bodies too far, leading to pain and swelling. Treatment for both tendon and ligament problems usually includes rest, ice, and supporting the area to let it heal.

Pain and numbness problems can be caused by overuse, disease, an injury, or a compressed nerve. Lower back pain and carpal tunnel syndrome are two of the most common conditions patients encounter. Lower back pain may be caused by sore muscles that have been overworked, or an injury to the disks separating the vertebrae in the spine. Lower back pain usually goes away on its own within a few days, but it may require medical treatment depending on the cause. Carpal tunnel syndrome occurs when the nerve at the base of the palm becomes trapped or pinched. Symptoms include tingling, pain, numbness, or weakness in the hand. Treatment involves rest and sometimes steroid injections.

Because the musculoskeletal system involves so much of the body, problems here can be incredibly varied in their type and severity. Some musculoskeletal problems will go away on their own or only require rest, while others may require medication, physical therapy, or even surgery.

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. John D. Cahoy, MD, PHD treated as a pediatric orthopedist in Westford, MA during 2018 were hospital care, inpatient care, aspiration and injections.

Volume of procedures performed by Dr. John D. Cahoy, MD, PHD for Medicare patients.

aspiration	14
doctor visit	26
hospital care	24
injections	14
inpatient care	24

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. John D. Cahoy, MD, PHD.

**Gender**
Male	19
Female	57

**Age**
From 65 to 74	0
From 75 to 84	29
85 and over	27
Less than 65	0

Conditions of Medicare patients treated by Dr. John D. Cahoy, MD, PHD in 2018

The most common conditions of Medicare patients that Dr. John D. Cahoy, MD, PHD treated during 2018 were hypertension, high cholesterol, chronic kidney disease and ischemic heart disease.

Hypertension	67
High Cholesterol	49
Stroke	0
Ischemic Heart Disease	32
Depression	30
Chronic Kidney Disease	37
Asthma	16
Osteoperosis	16
Atrial Fibrilation	24
Heart Failure	22
Chronic Obstructive Pulmonary Disease	0
Diabetes	0
Dementia	30
Cancer	0

Medicare Procedure and Patient Information

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. John D. Cahoy, MD, PHD.

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

Medicare Procedure and Patient Information

Conditions of Medicare patients treated by Dr. John D. Cahoy, MD, PHD in 2020

The most common conditions of Medicare patients that Dr. John D. Cahoy, MD, PHD treated during 2020 were hypertension.

Hypertension	67
High Cholesterol	0
Stroke	0
Ischemic Heart Disease	0
Depression	0
Chronic Kidney Disease	0
Asthma	0
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	0
Chronic Obstructive Pulmonary Disease	0
Diabetes	0
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. John D. Cahoy, MD, PHD treated as a pediatric orthopedist in Westford, MA during 2021 were hospital care and inpatient care.

Volume of procedures performed by Dr. John D. Cahoy, MD, PHD for Medicare patients.

hospital care	17
inpatient care	17

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. John D. Cahoy, MD, PHD.

**Ethnicity**
Non-Hispanic White	27
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

Conditions of Medicare patients treated by Dr. John D. Cahoy, MD, PHD in 2021

The most common conditions of Medicare patients that Dr. John D. Cahoy, MD, PHD treated during 2021 were hypertension, high cholesterol, dementia and depression.

Hypertension	67
High Cholesterol	56
Stroke	0
Ischemic Heart Disease	0
Depression	44
Chronic Kidney Disease	0
Asthma	0
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	0
Chronic Obstructive Pulmonary Disease	0
Diabetes	0
Dementia	48
Cancer	0

Medicare Procedure and Patient Information

Conditions of Medicare patients treated by Dr. John D. Cahoy, MD, PHD in 2022

The most common conditions of Medicare patients that Dr. John D. Cahoy, MD, PHD treated during 2022 were hypertension and high cholesterol.

Hypertension	75
High Cholesterol	62
Stroke	0
Ischemic Heart Disease	0
Depression	0
Chronic Kidney Disease	0
Asthma	0
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	0
Chronic Obstructive Pulmonary Disease	0
Diabetes	0
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2023 Medicare Patient Data

Information about Medicare patients treated by Dr. John D. Cahoy, MD, PHD.

**Age**
From 65 to 74	0
From 75 to 84	0
85 and over	14
Less than 65	0

Conditions of Medicare patients treated by Dr. John D. Cahoy, MD, PHD in 2023

The most common conditions of Medicare patients that Dr. John D. Cahoy, MD, PHD treated during 2023 were hypertension, high cholesterol and chronic kidney disease.

Hypertension	69
High Cholesterol	50
Stroke	0
Ischemic Heart Disease	0
Depression	0
Chronic Kidney Disease	46
Asthma	0
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	0
Chronic Obstructive Pulmonary Disease	0
Diabetes	0
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2018 - 2023

Volume of procedures performed by Dr. John D. Cahoy, MD, PHD for Medicare patients.

The highest averages for the top procedures that Dr. John D. Cahoy, MD, PHD treated as a pediatric orthopedist in Westford, MA were hospital care, inpatient care, aspiration and injections.

aspiration	14
doctor visit	26
hospital care	20
injections	14
inpatient care	20

Average Medicare Patient Data From 2018 - 2023

Information about Medicare patients treated by Dr. John D. Cahoy, MD, PHD.

**Gender**
Male	3
Female	9

**Ethnicity**
Black / African American	0
Asian / Pacific Islander	0
Non-Hispanic White	7
Hispanic	0
Native American / Alaskan Native	0
Other	0

**Age**
75 to 84	4
85 and over	6
Less than 65	0
65 to 74	0

Average of Total of Conditions of Medicare patients treated by Dr. John D. Cahoy, MD, PHD From 2018 - 2023

The highest averages of the most common conditions of Medicare patients that Dr. John D. Cahoy, MD, PHD treated were hypertension, high cholesterol, chronic kidney disease and dementia.

Hypertension	57
High Cholesterol	36
Stroke	0
Ischemic Heart Disease	5
Depression	12
Chronic Kidney Disease	13
Asthma	2
Osteoporosis	2
Heart Failure	3
Chronic Obstructive Pulmonary Disease	0
Diabetes	0
Atrial Fibrillation	4
Dementia	13
Cancer	0

Education & Training

Dr. John D. Cahoy, MD, PHD graduated from Stanford University School of Medicine. He completed residency at Harvard Orthopaedic Combined Residency Program. He is certified by the Orthopedic Surgery and has a state license in Massachusetts.

Medical School: Stanford University School of Medicine

Residency: Harvard Orthopaedic Combined Residency Program

Board Certification: Orthopedic Surgery

Licensed In: Massachusetts

Affiliations & Hospitals

Dr. John D. Cahoy, MD, PHD is associated with these hospitals and organizations:

Emerson Health

ORTHOPEDIC AFFILIATES INC

Ratings & Reviews

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General Payments

These charts describe general payments received by Dr. John D. Cahoy, MD, PHD. Doctors may receive payments for a number of reasons, including meal compensation, travel compensation, and consulting.

**Payments by Company**
OrthoPediatrics Corp.	$90 Pedi-Nail $90
Orthofix Medical, Inc.	$42 Physio-Stim Osteogenesis Stimulator $28	Physio-Stim $14
Smith+Nephew, Inc.	$22 PICO 7 Single Use Negative Pressure Wound Therapy $22
Pacira Pharmaceuticals Incorporated	$19 Zilretta $19
DePuy Synthes Sales Inc.	$16 ORTHOVISC $16
Other	$12 Sports Med Shoulder $12

**Types of Payments**
Food and Beverage	$202

Biography

Dr. John Cahoy is a specialist in pediatric orthopedics/orthopedic surgery in Concord, MA, Westford, MA, and Hudson, MA. Dr. Cahoy's areas of expertise include the following: scoliosis, sports injuries, and musculoskeletal problems. He is affiliated with Emerson Health. He is a graduate of Stanford University School of Medicine and a graduate of Harvard Orthopaedic Combined Residency Program's residency program. He welcomes new patients at his office inConcord, MA as reported by Emerson Health.