John B Mccahan, M.D.
John B Mccahan is a Pediatrics specialist based in Westborough, MA with over 33 years of clinical experience. Medicare-enrolled per CMS records and offers virtual telehealth visits.
Also practices: PEDIATRIC MEDICINE
John B Mccahan, M.D. has practiced pediatrics for 33+ years, working in group practice. He graduated from University of Massachusetts Medical School in 1993 and has 33+ years of clinical experience. He regularly sees Medicare patients with high cholesterol, hypertension, and arthritis (per CMS claims data).
At a glance
- Prescribes opioids less than 23% of reporting doctors in Massachusetts
- Uses generic medications more than 63% of reporting doctors in Massachusetts
- Virtual visits available — no app or travel required
Older · 437dNPPES updated 2025-03-12 · verify NPI on CMS · Verify license at Massachusetts Board of Registration in Medicine
Contact & Location
Practice Location
33 E Main St, Westborough, MA 01581-1410
How Does This Doctor Compare?
Based on Medicare data, this doctor prescribes opioid pain medications conservatively, favors affordable generic drugs over brand-name ones.
Opioid Rx
↓ Lower = better3.43%
Massachusetts avg: 4 · US avg: 5.1
✓ Higher than most doctors nationally(-1.7 pts)
3.43% of this doctor's prescriptions are opioid pain medications. Lower means more cautious prescribing.
Generic Rx
↑ Higher = better89.7%
Massachusetts avg: 81.9 · US avg: 82.8
✓ Higher than most doctors nationally(+6.9 pts)
Typical range among reporting doctors in MassachusettsHow often this doctor prescribes affordable generic drugs instead of expensive brand-name ones.
Medicare Patients
146
Unique beneficiaries
Standard volumePrescription Recipients
193
Patients prescribed
Prescriptions Written
1,721
Total claims
Total Medicare drug cost: $184k
Percentile rankings compared against 1,606 reporting peers in Massachusetts.
Data Note: Sourced from CMS Medicare Provider Utilization & Payment Data. Percentile rankings compare this provider against all peers with reported data in the same state. Updated annually to reflect the latest federal reporting cycle.
What This Doctor Treats Most
Based on Medicare claims data — here's what patients commonly see this doctor for
Based on Medicare data, this doctor primarily manages High Cholesterol, Hypertension, and Arthritis.
Elevated cholesterol or triglycerides that increase heart disease risk
US avg: 70.4%High blood pressure — a leading risk factor for heart disease and stroke
US avg: 70.2%↓ Fewer patients than average (-4%) — less common here
Joint inflammation causing pain, swelling, and stiffness
US avg: 49.3%↓ Fewer patients than average (-19%) — less common here
A condition where the body cannot properly regulate blood sugar levels
US avg: 34.5%↓ Fewer patients than average (-6%) — less common here
Gradual loss of kidney function over time, often linked to diabetes or hypertension
US avg: 29.6%↓ Fewer patients than average (-7%) — less common here
Reduced blood flow to the heart muscle, commonly known as coronary artery disease
US avg: 31.7%↓ Fewer patients than average (-10%) — less common here
Excessive worry or fear that interferes with daily life
US avg: 34.1%↓ Fewer patients than average (-12%) — less common here
Percentage of this provider's Medicare patients diagnosed with each condition. Source: CMS Utilization Data.
$128 received from industry
1 transaction reported in 2018 ·Low tier
Payments include consulting fees, speaking honoraria, food & beverage, travel, research support, and ownership interests from drug and medical device manufacturers. Disclosure is required by the federal Physician Payments Sunshine Act. These payments do not necessarily indicate conflicts of interest. National median: $338 across 136 000 tracked providers.
Tiers — Low: under $500 · Moderate: $500-5 000 · High: $5 000-25 000 · Very High: $25 000+. Source: CMS Open Payments 2018, attributed to John B Mccahan's NPI.
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Background & Specialty
Education, training, and specialty classification from CMS NPPES and Medicare records.
Graduated medical school · 1993
Umass Chan Medical School
Board certified · Mar 11, 2025
Self-reported via NPPES
33 years in practice
Senior practitioner
A pediatrician is concerned with the physical, emotional and social health of children from birth to young adulthood. Care encompasses a broad spectrum of health services ranging from preventive healthcare to the diagnosis and treatment of acute and chronic diseases. A pediatrician deals with biological, social and environmental influences on the developing child, and with the impact of disease and dysfunction on development.
Taxonomy: 208000000X
Education & Training
University of Massachusetts Medical School (Class of 1993)
Mailing address
Po Box 415348, Boston, MA 02241-5348
Differs from practice location
Virtual Pediatrics Care With John B Mccahan
NPPES records indicate this provider offers telehealth services. Contact the office to confirm availability and scheduling.
Schedule a virtual visit with John B Mccahan for cholesterol management, blood pressure monitoring, arthritis follow-ups — no travel to Westborough required. The office sends a secure video link before your appointment. Most visits take 15–30 minutes. Medicare enrolled per CMS records.
Frequently Asked Questions
Common questions about John B Mccahan
NPI records show Dr. Mccahan as active with telehealth listed in Westborough, MA. NPI status alone doesn't confirm open availability — call the office to confirm. Phone: (508) 836-4884.
Sourced from CMS NPPES · OIG LEIE · CMS Medicare Part D · CMS Open Payments 2018 · CMS Physician Comparator. See Data Methodology.
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Contact John B Mccahan
Practice Location
33 E Main St, Westborough, MA 01581-1410
Mailing Address
Po Box 415348, Boston, MA 02241-5348
This is a provider directory. Contact the office directly to schedule appointments.
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