Larrie Ann Williamson, M.D.
Psychiatry Physician · Shreveport, LA
Larrie Ann Williamson, M.D. is a psychiatry physician with a practice address in Shreveport, Louisiana, and NPI 1356319453, issued on Mar 14, 2006. Check the license (Louisiana MD.023926, as entered in NPPES) on the Louisiana State Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- Larrie Ann Williamson
- Credential
- M.D.
- Primary taxonomy
- Psychiatry Physician 2084P0800X
- License numbers
- MD.023926 LA
023926 LA
Self-reported in NPPES; status is on the state search - Practice location
- 1002 Highland Ave, Shreveport, LA 71101
- Phone
- (318) 675-1300
- Enumerated
- Mar 14, 2006
- Record last updated
- Jan 29, 2020 (not updated in 6 years: call before relying on the address or phone)
- Fax
- (318) 675-1301
- Medicaid ID
- 1487562 LA
- Entity
- Type 1 · individual
8 nearest psychiatry physician records → All 583 in Louisiana → Look up another NPI →
Also registered at 1002 Highland Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Carlye Abrams, LMFTMental Health Counselor1770510323
- Carlton Baker, LPCCounselor1356387427
- Wendy Bowlin, L.P.C.Mental Health Counselor1386881589
- Guy Brannon, M.D.Psychiatry Physician1164481875
- Michael Davenport, PHDPsychologist1659308104
- Sharon Davidson, MSW, LCSWClinical Social Worker1710076682
Verify Larrie Ann Williamson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersLouisiana State Board of Medical Examiners
Search for license MD.023926Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
73% fewer Medicare Part D claims than the average psychiatry physician in 2024
273 Medicare Part D claims for 17 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D.
Most prescribed
- Clonazepam64 claims
- Trazodone Hcl27 claims
- Hydroxyzine Pamoate17 claims
- Diazepam15 claims
- Hydroxyzine Hcl13 claims
- Nortriptyline Hcl12 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.
Larrie Ann Williamson among 583 psychiatry physician records in Louisiana
Larrie Ann Williamson, M.D. is one of 583 psychiatry physician records with a practice address in Louisiana. 75% 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 4% of them.
- NPI issued2006 · 4% of these records are older, 63% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileNo · 48% of these records are
- Record last updated2020 · 56% 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 Louisiana practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Psychiatry Physician providers in Louisiana
There are 583 psychiatry physician records in Louisiana.
All 583 in Louisiana → Every provider in Shreveport → Psychiatry Physician nationwide →
The 8 psychiatry physician records with the nearest ZIP codes
- Nadejda Alekseeva, MDShreveport, LA 711011538298005
- Linda Boswell, MDShreveport, LA 711011093807760
- Guy Brannon, M.D.Shreveport, LA 711011164481875
- Robin Cockrell, M.D.Shreveport, LA 711011578633863
- Cecil Dopson, MDShreveport, LA 711011669584876
- Daniel Feeney, M.D.Shreveport, LA 711011326012949
- Janice Hollier, M.D.Shreveport, LA 711011679542773
- Susan IngShreveport, LA 711011013927193
Common questions
What is Larrie Ann Williamson, M.D.'s NPI number?
Larrie Ann Williamson, M.D.'s National Provider Identifier (NPI) is 1356319453, issued on Mar 14, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Larrie Ann Williamson, M.D. located?
The NPPES record lists a practice address at 1002 Highland Ave, Shreveport, LA, 71101. Phone: (318) 675-1300. Providers update this record themselves, so call before visiting.
How can I verify Larrie Ann Williamson, M.D.'s license?
NPPES lists Louisiana license number MD.023926, as entered by the provider. Search the Louisiana State Board of Medical Examiners at https://www.lsbme.la.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Larrie Ann Williamson, M.D. prescribe under Medicare Part D?
In 2024, Larrie Ann Williamson, M.D. had 273 Medicare Part D claims for 17 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.