Gregory Larimer, M.D.
Psychiatry Physician · Houston, TX
Gregory Larimer, M.D. is a psychiatry physician with a practice address in Houston, Texas, and NPI 1831546191, issued on May 17, 2016. Check the license (Texas S3223, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.
- Name
- Gregory Larimer
- Credential
- M.D.
- Primary taxonomy
- Psychiatry Physician 2084P0800X
- License number
- S3223 TX
Self-reported in NPPES; status is on the state search - Practice location
- 1941 East RD, Houston, TX 77054
- Phone
- (713) 486-2570
- Enumerated
- May 17, 2016
- Record last updated
- Mar 26, 2020 (not updated in 6 years: call before relying on the address or phone)
- Fax
- (713) 486-2565
- Medicare enrollment
- Enrolled (PECOS I20200427000020); accepts Medicare assignment
- Medical or professional school
- University Of Texas Medical School At Houston, 2016
- Entity
- Type 1 · individual
8 nearest psychiatry physician records → All 3,318 in Texas → Look up another NPI →
Also registered at 1941 East RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Ronald Acierno, PHDClinical Psychologist1013025972
- Chizomam AguwaPsychiatric/Mental Health Nurse Practitioner1154021996
- Taha AliChild & Adolescent Psychiatry Physician1538517479
- Melissa Allen, D.O.Psychiatry Physician1821394081
- Madeleine AllmanStudent in an Organized Health Care Education/Training Program1033089412
- Gokay Alpak, MDPsychiatry Physician1649769910
Verify Gregory Larimer in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTexas Medical Board
Search for license S3223Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
99% fewer Medicare Part D claims than the average psychiatry physician in 2024
11 Medicare Part D claims, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of 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.
The practice group's MIPS final score for 2023 (Medicare payment program): 85.7 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- The Harris Center For Mental Health And IddHouston, TX
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Gregory Larimer among 3,318 psychiatry physician records in Texas
Gregory Larimer, 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 2016, is newer than 73% of them.
- NPI issued2016 · 73% of these records are older, 24% newer
- In a Medicare fileYes · 72% of these records are
- In the CMS Doctors and Clinicians fileYes · 45% of these records are
- Graduated2016 · 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).
Psychiatry Physician providers in Texas
There are 3,318 psychiatry physician records in Texas.
All 3,318 in Texas → Every provider in Houston → Psychiatry Physician nationwide →
The 8 psychiatry physician records with the nearest ZIP codes
- Nora Choubkha, M.D.Houston, TX 770541649470931
- Bachir Debba, MDHouston, TX 770541336339340
- Wafaa Farag, MDHouston, TX 770541205894920
- Luis Fernandez-Wische, M.D.Houston, TX 770541225235534
- Silvia Hafliger, MDHouston, TX 770541285619171
- Liyi Hong, MDHouston, TX 770541093924565
- Ada Jemison, MDHouston, TX 770541932157997
- Manjul Mehra, MDHouston, TX 770541194731695
Common questions
What is Gregory Larimer, M.D.'s NPI number?
Gregory Larimer, M.D.'s National Provider Identifier (NPI) is 1831546191, issued on May 17, 2016. An NPI identifies a provider in billing; it is not a license.
Where is Gregory Larimer, M.D. located?
The NPPES record lists a practice address at 1941 East RD, Houston, TX, 77054. Phone: (713) 486-2570. Providers update this record themselves, so call before visiting.
How can I verify Gregory Larimer, M.D.'s license?
NPPES lists Texas license number S3223, 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 Gregory Larimer, M.D. prescribe under Medicare Part D?
In 2024, Gregory Larimer, M.D. had 11 Medicare Part D claims; the average among psychiatry physician prescribers was 1,000. Part D covers Medicare prescriptions only.
What is Gregory Larimer, M.D.'s MIPS final score?
The 2023 MIPS final score is 85.7 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.