Mark Holliday
NPI 1538857602 · General Practice Physician · San Antonio, TX
Mark Holliday is a General Practice Physician provider in San Antonio, TX (NPI 1538857602).
Provider details
- NPI number
- 1538857602
- Entity type
- Individual
- Primary specialty
- General Practice PhysicianAllopathic & Osteopathic Physicians
- Sex
- Male
- Sole proprietor
- No
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
3 yrs in NPPES registry
- Profile completeness38% of score
83% 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
- 2023-04-26
- Last updated
- 2026-03-16
- Certified
- 2026-03-16
Frequently asked questions
- What is Mark Holliday's NPI number?
- Mark Holliday's National Provider Identifier (NPI) is 1538857602, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Holliday's specialty?
- Mark Holliday is listed in the NPPES registry with a primary specialty of General Practice Physician (Allopathic & Osteopathic Physicians).
- Where is Mark Holliday located?
- Mark Holliday's practice location on file with NPPES is 6000 Randolph Blvd Apt 37202, San Antonio, TX 78233-5872.
- What is Mark Holliday's phone number?
- The practice phone number listed in the NPPES registry for Mark Holliday is (979) 479-5283.
- Is Mark Holliday's NPI active?
- Yes — Mark Holliday's NPI (1538857602) is active in the NPPES registry as of the last update on 2026-03-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.