NPPES file of Aug 9, 2026

William Daniel Williamson, M.D.

Developmental - Behavioral Pediatrics Physician · Houston, TX

William Daniel Williamson, M.D. is a developmental - behavioral pediatrics physician with a practice address in Houston, Texas, and NPI 1114929866, issued on Aug 12, 2005. Check the license (Texas F2994, as entered in NPPES) on the Texas Medical Board; the federal record below is the public data PlainDoctor holds for this provider.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1114929866
Name
William Daniel Williamson
Credential
M.D.
Primary taxonomy
Developmental - Behavioral Pediatrics Physician 2080P0006X
License number
F2994 TX
Self-reported in NPPES; status is on the state search
Practice location
6655 Travis St, Houston, TX 77030
Phone
(713) 500-8300
Enumerated
Aug 12, 2005
Record last updated
Apr 2, 2008 (not updated in 18 years: call before relying on the address or phone)
Fax
(713) 500-8289
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 6655 Travis St

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Linda Andrews, M.D.Psychiatry Physician1477754679
  2. Scott Cohen, M.D.Otolaryngology/Facial Plastic Surgery Physician1578728192
  3. Madeleine Duvic, M.D.Dermatology Physician1013964105
  4. Rhea Elliott, F.N.P.Nurse Practitioner1487694568
  5. Anna Feng, DDSPediatric Dentistry1902537350
  6. Glenn Gabbard, M.D.Psychiatry Physician1497956692

Verify William Daniel Williamson in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersTexas Medical Board
    Search for license F2994
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Texas license search

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Developmental - Behavioral Pediatrics Physician providers in Texas

There are 89 developmental - behavioral pediatrics physician records in Texas. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

Other developmental - behavioral pediatrics physician records in Texas

  1. Corazon Gladys Ajero, MDEdinburg, TX1073538799
  2. Alberto Allegre Alonso, M.D.Edinburg, TX1346504875
  3. Candice Allen, M.DSpring, TX1720305733
  4. Gabriel Anzueto, MDHouston, TX1871908723
  5. Beth Auslander, PH.D.Galveston, TX1346332178
  6. Kendall BannowskyKaty, TX1598411704
  7. Sari Bar, D.O.Dallas, TX1326331000
  8. Rene Bartos, MD, MPH, FAAPAustin, TX1679066799
  9. Brian Berke, M.D.Lackland A F B, TX1730137324
  10. Jeffrey BlackDallas, TX1265854905

Common questions

What is William Daniel Williamson, M.D.'s NPI number?

William Daniel Williamson, M.D.'s National Provider Identifier (NPI) is 1114929866, issued on Aug 12, 2005. An NPI identifies a provider in billing; it is not a license.

Where is William Daniel Williamson, M.D. located?

The NPPES record lists a practice address at 6655 Travis St, Houston, TX, 77030. Phone: (713) 500-8300. Providers update this record themselves, so call before visiting.

How can I verify William Daniel Williamson, M.D.'s license?

NPPES lists Texas license number F2994, as entered by the provider. Search the Texas Medical Board at https://profile.tmb.state.tx.us/Search.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.