William Dewayne Holmes, M.D.
Psychiatry Physician · Austin, TX
William Dewayne Holmes, M.D. is a psychiatry physician with a practice address in Austin, Texas, and NPI 1639348246, issued on Feb 27, 2008. Check the license (Texas H4418, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.
- Name
- William Dewayne Holmes
- Credential
- M.D.
- Primary taxonomy
- Psychiatry Physician 2084P0800X
- License number
- H4418 TX
Self-reported in NPPES; status is on the state search - Practice location
- 12515 Research Blvd, Austin, TX 78759
- Phone
- (210) 241-2691
- Enumerated
- Feb 27, 2008
- Record last updated
- Oct 11, 2013 (not updated in 13 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest psychiatry physician records → All 3,318 in Texas → Look up another NPI →
Verify William Dewayne Holmes in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTexas Medical Board
Search for license H4418Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
79% fewer Medicare Part D claims than the average psychiatry physician in 2024
212 Medicare Part D claims for 38 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D. Brand-name drugs were 7% of claims.
Most prescribed
- Dextroamphetamine-Amphet Er47 claims
- Dextroamphetamine-Amphetamine33 claims
- Vyvanse15 claims
- Alprazolam13 claims
- Lorazepam13 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
William Dewayne Holmes among 3,318 psychiatry physician records in Texas
William Dewayne Holmes, M.D. is one of 3,318 psychiatry physician records with a practice address in Texas. 72% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 49% of them.
- NPI issued2008 · 49% of these records are older, 46% newer
- In a Medicare fileYes · 72% of these records are
- In the CMS Doctors and Clinicians fileNo · 45% of these records are
- Record last updated2013 · 49% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084P0800X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
343 psychiatry physician records list a practice address in Austin
They are 343 of the 26,585 NPPES records with a practice address in Austin, and 3,318 psychiatry physician records in Texas.
All 3,318 in Texas → Every provider in Austin → Psychiatry Physician nationwide →
The 8 psychiatry physician records with the nearest ZIP codes
- Tiffany Ballard, D.O.Austin, TX 787591609819317
- Paul Compton, M.D.Austin, TX 787591780733022
- Robert Dobyns, MDAustin, TX 787591083713911
- Kelley Farmer, M.D.Austin, TX 787591235273863
- Gary Glass, MDAustin, TX 787591306867924
- Francisca Ifesinachukwu, M.D.Austin, TX 787591558475335
- Michelle Magid, M.D.Austin, TX 787591184602591
- Barry Rosson, MD, JDAustin, TX 787591225119787
Common questions
What is William Dewayne Holmes, M.D.'s NPI number?
William Dewayne Holmes, M.D.'s National Provider Identifier (NPI) is 1639348246, issued on Feb 27, 2008. An NPI identifies a provider in billing; it is not a license.
Where is William Dewayne Holmes, M.D. located?
The NPPES record lists a practice address at 12515 Research Blvd, Austin, TX, 78759. Phone: (210) 241-2691. Providers update this record themselves, so call before visiting.
How can I verify William Dewayne Holmes, M.D.'s license?
NPPES lists Texas license number H4418, 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.
How much does William Dewayne Holmes, M.D. prescribe under Medicare Part D?
In 2024, William Dewayne Holmes, M.D. had 212 Medicare Part D claims for 38 beneficiaries; the average among psychiatry physician prescribers was 1,000. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. 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.