John Mccarthy, M.D., M.SC.
NPI 1508129677 · Gastroenterology Physician · Bethesda, MD
Enrolled with Medicare as Order and Referring Only - Gastroenterology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Mccarthy, M.D., M.SC. is a Gastroenterology Physician provider in Bethesda, MD (NPI 1508129677).
Provider details
- NPI number
- 1508129677
- Entity type
- Individual
- Primary specialty
- Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D., M.SC.
- Sex
- Male
- Sole proprietor
- No
- License
- MD-17464 (HI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
14 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Registry dates
- Enumerated
- 2012-06-22
- Last updated
- 2023-08-28
- Certified
- 2023-08-28
Frequently asked questions
- What is John Mccarthy's NPI number?
- John Mccarthy's National Provider Identifier (NPI) is 1508129677, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Mccarthy's specialty?
- John Mccarthy is listed in the NPPES registry with a primary specialty of Gastroenterology Physician (Allopathic & Osteopathic Physicians).
- Where is John Mccarthy located?
- John Mccarthy's practice location on file with NPPES is 8901 Wisconsin Ave, Bethesda, MD 20889-5600.
- What is John Mccarthy's phone number?
- The practice phone number listed in the NPPES registry for John Mccarthy is (301) 295-4000.
- Does John Mccarthy accept Medicare?
- John Mccarthy is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Mccarthy's NPI active?
- Yes — John Mccarthy's NPI (1508129677) is active in the NPPES registry as of the last update on 2023-08-28.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.