Physician Profile
Based in Westborough, MA, John B. McCahan, M.D. is listed in the NPI registry under pediatrics. John graduated from University of Massachusetts Medical School in 1993. John is also listed as specializing in internal medicine. According to Medicare claims data, John cared for 304 Medicare patients across 366 services. The services billed most often include established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more, annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit, and established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
License numbers are what the provider reported to NPPES when the NPI was issued or updated. NPPES does not verify licensure; confirm current standing with the state licensing board.
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
33 E MAIN ST
Westborough, MA 01581
Within Pediatrics generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Most searched conditions
Digestive and urinary
Ear, nose, throat, and eye
Growth, development, and behavior
Newborn and infant
Respiratory and infectious
Skin
Brain & nerves
Digestive health
Digestive Health
Infant Health
Infections
Injuries
Mental Health
Respiratory
Skin Conditions
Most searched procedures
Immunization and screening
Office testing
Checkups & Exams
Developmental & Behavioral
Diagnostic Tests
Diagnostic tests
Infant Health
Lab tests & screenings
Minor procedures
Office procedures
Preventive care
Procedures & Minor Surgery
Respiratory
Urgent care & minor procedures
366 services · 304 patients · 10 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Pneumococcal conjugate vaccine, 20 valent (pcv20), for intramuscular use | Treatment | 90677 |
16 | As often as other peers in Pediatrics |
| Routine electrocardiogram (ecg) using at least 12 leads with tracing | Treatment | 93005 |
11 | |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
80 | As often as other peers in Pediatrics |
| Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit | Billing code | G0439 |
67 | As often as other peers in Pediatrics |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
65 | As often as other peers in Pediatrics |
| Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient' | Billing code | G2211 |
38 | As often as other peers in Pediatrics |
| Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more | Office visit | 99215 |
35 | More often than most peers in Pediatrics |
| Administration of influenza virus vaccine | Billing code | G0008 |
24 | As often as other peers in Pediatrics |
| Administration of pneumococcal vaccine | Billing code | G0009 |
15 | As often as other peers in Pediatrics |
| Transitional care management services for problem of at least moderate complexity | Office visit | 99495 |
15 |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
John B. McCahan is a pediatrician in Westborough, MA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Pediatrics”.
NPI registry
John B. McCahan is listed at 33 E Main St, Westborough, MA 01581. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
The number on file is (508) 836-4884. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
John B. McCahan's National Provider Identifier is 1225012354. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
John B. McCahan attended University of Massachusetts Medical School, graduating in 1993. This comes from the CMS National Downloadable File.
CMS public data
John B. McCahan has 33 years experience. Calculated from a graduation year of 1993, reported in the CMS National Downloadable File.
CMS public data
According to Medicare billing data, John B. McCahan provides treatments such as pneumococcal conjugate vaccine, 20 valent , for intramuscular use and routine electrocardiogram using at least 12 leads with tracing, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Not yet. This profile is built from public federal data and has not been confirmed by John B. McCahan. If this is you, claiming it is free.
Guide.md
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.