Gary Williamson, MD
NPI 1851333850 · Emergency Medicine Physician · Tyler, TX
Enrolled with Medicare as Practitioner - Emergency Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Gary Williamson, MD is a Emergency Medicine Physician provider in Tyler, TX (NPI 1851333850).
Provider details
- NPI number
- 1851333850
- Entity type
- Individual
- Primary specialty
- Emergency Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- F2120 (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
- 2006-06-12
- Last updated
- 2015-03-16
Frequently asked questions
- What is Gary Williamson's NPI number?
- Gary Williamson's National Provider Identifier (NPI) is 1851333850, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gary Williamson's specialty?
- Gary Williamson is listed in the NPPES registry with a primary specialty of Emergency Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Gary Williamson located?
- Gary Williamson's practice location on file with NPPES is 800 E Dawson St, Tyler, TX 75701-2036.
- What is Gary Williamson's phone number?
- The practice phone number listed in the NPPES registry for Gary Williamson is (903) 593-8441.
- Does Gary Williamson accept Medicare?
- Gary Williamson is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Gary Williamson's NPI active?
- Yes — Gary Williamson's NPI (1851333850) is active in the NPPES registry as of the last update on 2015-03-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.