John Hamill, MD
NPI 1447361639 · Ophthalmology Physician · Chevy Chase, MD
John Hamill, MD is a Ophthalmology Physician provider in Chevy Chase, MD (NPI 1447361639).
Provider details
- NPI number
- 1447361639
- Entity type
- Individual
- Primary specialty
- Ophthalmology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- D0015159 (MD)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 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
- 2006-08-31
- Last updated
- 2008-02-20
Frequently asked questions
- What is John Hamill's NPI number?
- John Hamill's National Provider Identifier (NPI) is 1447361639, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Hamill's specialty?
- John Hamill is listed in the NPPES registry with a primary specialty of Ophthalmology Physician (Allopathic & Osteopathic Physicians).
- Where is John Hamill located?
- John Hamill's practice location on file with NPPES is 5454 Wisconsin Ave, Chevy Chase, MD 20815-6930.
- What is John Hamill's phone number?
- The practice phone number listed in the NPPES registry for John Hamill is (301) 657-0802.
- Is John Hamill's NPI active?
- Yes — John Hamill's NPI (1447361639) is active in the NPPES registry as of the last update on 2008-02-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.