William Collins, MD
NPI 1538867023 · Emergency Medicine Physician · San Antonio, TX
William Collins, MD is a Emergency Medicine Physician provider in San Antonio, TX (NPI 1538867023).
Provider details
- NPI number
- 1538867023
- Entity type
- Individual
- Primary specialty
- Emergency Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- DR.0074070 (CO)
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
3 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
- 2023-02-23
- Last updated
- 2026-04-17
- Certified
- 2026-04-17
Frequently asked questions
- What is William Collins's NPI number?
- William Collins's National Provider Identifier (NPI) is 1538867023, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Collins's specialty?
- William Collins is listed in the NPPES registry with a primary specialty of Emergency Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is William Collins located?
- William Collins's practice location on file with NPPES is 3551 Roger Brooke Dr, San Antonio, TX 78234-4504.
- What is William Collins's phone number?
- The practice phone number listed in the NPPES registry for William Collins is (210) 916-4789.
- Is William Collins's NPI active?
- Yes — William Collins's NPI (1538867023) is active in the NPPES registry as of the last update on 2026-04-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.