William Williamson, M.D.
NPI 1114929866 · Developmental - Behavioral Pediatrics Physician · Houston, TX
William Williamson, M.D. is a Developmental - Behavioral Pediatrics Physician provider in Houston, TX (NPI 1114929866).
Provider details
- NPI number
- 1114929866
- Entity type
- Individual
- Primary specialty
- Developmental - Behavioral Pediatrics PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- F2994 (TX)
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
- 2005-08-12
- Last updated
- 2008-04-02
Frequently asked questions
- What is William Williamson's NPI number?
- William Williamson's National Provider Identifier (NPI) is 1114929866, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Williamson's specialty?
- William Williamson is listed in the NPPES registry with a primary specialty of Developmental - Behavioral Pediatrics Physician (Allopathic & Osteopathic Physicians).
- Where is William Williamson located?
- William Williamson's practice location on file with NPPES is 6655 Travis St, Houston, TX 77030-1312.
- What is William Williamson's phone number?
- The practice phone number listed in the NPPES registry for William Williamson is (713) 500-8300.
- Is William Williamson's NPI active?
- Yes — William Williamson's NPI (1114929866) is active in the NPPES registry as of the last update on 2008-04-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.