John Gambril, MD
NPI 1538796909 · Internal Medicine Physician · Birmingham, AL
Enrolled with Medicare as Order and Referring Only - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Gambril, MD is a Internal Medicine Physician provider in Birmingham, AL (NPI 1538796909).
Provider details
- NPI number
- 1538796909
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 57.249197 (OH)
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 tenure33% of score
6 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
2 documented practice locations
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$270 across 1 record (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (1)
- 1405 S High StColumbus, OH 43207-1043Phone: (614) 355-9000Fax: (614) 355-9010
Registry dates
- Enumerated
- 2020-03-25
- Last updated
- 2024-06-25
- Certified
- 2024-06-16
Frequently asked questions
- What is John Gambril's NPI number?
- John Gambril's National Provider Identifier (NPI) is 1538796909, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Gambril's specialty?
- John Gambril is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is John Gambril located?
- John Gambril's practice location on file with NPPES is 1808 7th Avenue South Boshell Diabetes Building 201, Birmingham, AL 35294-1043.
- What is John Gambril's phone number?
- The practice phone number listed in the NPPES registry for John Gambril is (205) 934-0820.
- Does John Gambril accept Medicare?
- John Gambril is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Gambril's NPI active?
- Yes — John Gambril's NPI (1538796909) is active in the NPPES registry as of the last update on 2024-06-25.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.