Markham Brown, M.D.
NPI 1770578007 · Family Medicine Physician · San Antonio, TX
Enrolled with Medicare as Order and Referring Only - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Markham Brown, M.D. is a Family Medicine Physician provider in San Antonio, TX (NPI 1770578007).
Provider details
- NPI number
- 1770578007
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- A51210 (CA)
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
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
- 2005-09-13
- Last updated
- 2022-07-14
- Certified
- 2022-07-14
Frequently asked questions
- What is Markham Brown's NPI number?
- Markham Brown's National Provider Identifier (NPI) is 1770578007, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Markham Brown's specialty?
- Markham Brown is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Markham Brown located?
- Markham Brown's practice location on file with NPPES is 3551 Roger Brooke Dr, San Antonio, TX 78234-4504.
- What is Markham Brown's phone number?
- The practice phone number listed in the NPPES registry for Markham Brown is (210) 539-9582.
- Does Markham Brown accept Medicare?
- Markham Brown is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Markham Brown's NPI active?
- Yes — Markham Brown's NPI (1770578007) is active in the NPPES registry as of the last update on 2022-07-14.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.