John Anderson, MD
NPI 1538258942 · Internal Medicine Physician · Ft Sill, OK
Enrolled with Medicare as Order and Referring Only - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Anderson, MD is a Internal Medicine Physician provider in Ft Sill, OK (NPI 1538258942).
Provider details
- NPI number
- 1538258942
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 9768 (OK)
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
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
- 2006-10-12
- Last updated
- 2012-04-05
Frequently asked questions
- What is John Anderson's NPI number?
- John Anderson's National Provider Identifier (NPI) is 1538258942, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Anderson's specialty?
- John Anderson is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is John Anderson located?
- John Anderson's practice location on file with NPPES is 4303 Pitman & Thomas, Ft Sill, OK 73503.
- What is John Anderson's phone number?
- The practice phone number listed in the NPPES registry for John Anderson is (580) 353-1131.
- Does John Anderson accept Medicare?
- John Anderson is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Anderson's NPI active?
- Yes — John Anderson's NPI (1538258942) is active in the NPPES registry as of the last update on 2012-04-05.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.