John Matlock, MD
NPI 1639170830 · Internal Medicine Physician · San Antonio, TX
John Matlock, MD is a Internal Medicine Physician provider in San Antonio, TX (NPI 1639170830).
Provider details
- NPI number
- 1639170830
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- F5644 (TX)
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
20 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
- 2005-08-10
- Last updated
- 2018-08-08
Frequently asked questions
- What is John Matlock's NPI number?
- John Matlock's National Provider Identifier (NPI) is 1639170830, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Matlock's specialty?
- John Matlock is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is John Matlock located?
- John Matlock's practice location on file with NPPES is 11503 Nw Military Hwy, San Antonio, TX 78231-1884.
- What is John Matlock's phone number?
- The practice phone number listed in the NPPES registry for John Matlock is (210) 492-1677.
- Is John Matlock's NPI active?
- Yes — John Matlock's NPI (1639170830) is active in the NPPES registry as of the last update on 2018-08-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.