William Louis Holcomb, M.D.
Psychiatry Physician · Austin, TX
William Louis Holcomb, M.D. is a psychiatry physician with a practice address in Austin, Texas, and NPI 1730117623, issued on Jun 29, 2006. Check the license (Texas K2038, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.
- Name
- William Louis Holcomb
- Credential
- M.D.
- Primary taxonomy
- Psychiatry Physician 2084P0800X
- License number
- K2038 TX
Self-reported in NPPES; status is on the state search - Practice location
- 4005 Banister LN Ste 200C, Austin, TX 78704
- Phone
- (512) 328-7222
- Enumerated
- Jun 29, 2006
- Record last updated
- May 7, 2020 (not updated in 6 years: call before relying on the address or phone)
- Fax
- (512) 328-8222
- Medicare enrollment
- Enrolled (PECOS I20070104000108); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest psychiatry physician records → All 3,318 in Texas → Look up another NPI →
Also registered at 4005 Banister LN Ste 200C
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Blake Grant, PMHNP-BCPsychiatric/Mental Health Nurse Practitioner1003522293
- Tristan Hartman, PMHNPPsychiatric/Mental Health Nurse Practitioner1457101594
- Daniel Liptak, MSN, PMHNPPsychiatric/Mental Health Nurse Practitioner1871126292
- Karina Riedel, PMHNPPsychiatric/Mental Health Nurse Practitioner1568125862
Verify William Louis Holcomb in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTexas Medical Board
Search for license K2038Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
42% fewer Medicare Part D claims than the average psychiatry physician in 2024
579 Medicare Part D claims for 47 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D.
Most prescribed
- Clonazepam158 claims
- Venlafaxine Hcl Er51 claims
- Clozapine47 claims
- Dextroamphetamine-Amphetamine37 claims
- Fluoxetine Hcl33 claims
- Olanzapine32 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 Louis Holcomb among 3,318 psychiatry physician records in Texas
William Louis Holcomb, 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 2006, is newer than 5% of them.
- NPI issued2006 · 5% of these records are older, 65% newer
- In a Medicare fileYes · 72% of these records are
- In the CMS Doctors and Clinicians fileYes · 45% of these records are
- Graduated1994 · median 2006 among the 1,481 with a school on file
- Record last updated2020 · 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
- Heinz Aeschbach, M.D.Austin, TX 787041477868115
- Crispa Aeschbach Jachmann, MDAustin, TX 787041396091211
- Cynthia Benton, MDAustin, TX 787041780605238
- Javier Escalera, M.D., M.S.Austin, TX 787041922215185
- Jenna Felici-West, MDAustin, TX 787041437578564
- James Halgrimson, D.O.Austin, TX 787041508158437
- Dale Hsieh, MDAustin, TX 787041871796607
- Kristin Lasseter, MDAustin, TX 787041003236035
Common questions
What is William Louis Holcomb, M.D.'s NPI number?
William Louis Holcomb, M.D.'s National Provider Identifier (NPI) is 1730117623, issued on Jun 29, 2006. An NPI identifies a provider in billing; it is not a license.
Where is William Louis Holcomb, M.D. located?
The NPPES record lists a practice address at 4005 Banister LN Ste 200C, Austin, TX, 78704. Phone: (512) 328-7222. Providers update this record themselves, so call before visiting.
How can I verify William Louis Holcomb, M.D.'s license?
NPPES lists Texas license number K2038, 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 Louis Holcomb, M.D. prescribe under Medicare Part D?
In 2024, William Louis Holcomb, M.D. had 579 Medicare Part D claims for 47 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.