Larry D. Plemmons, D.O.
Addiction Psychiatry Physician · Casper, WY
Larry D. Plemmons, D.O. is an addiction psychiatry physician with a practice address in Casper, Wyoming, and NPI 1386673366, issued on Jul 1, 2006. Check the license (Wyoming 5874A, as entered in NPPES) on the Wyoming Board of Medicine; the Medicare figures below come from public CMS files.
- Name
- Larry D. Plemmons
- Credential
- D.O.
- Primary taxonomy
- Addiction Psychiatry Physician 2084P0802X
- License number
- 5874A WY
Self-reported in NPPES; status is on the state search - Practice location
- 1522 E A St, Casper, WY 82601
- Phone
- (307) 233-6000
- Enumerated
- Jul 1, 2006
- Record last updated
- Jul 9, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (307) 472-3308
- Entity
- Type 1 · individual
All 1 in Wyoming → Look up another NPI →
Also registered at 1522 E A St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Joshua AndrewStudent in an Organized Health Care Education/Training Program1629827746
- Lydia Anikin, MDStudent in an Organized Health Care Education/Training Program1871119685
- Levi Barnum, PA-CPhysician Assistant1235855792
- Sherri Bates, L.P.N.Licensed Practical Nurse1194842252
- Erin Beck, R.N.Ambulatory Women's Health Care Registered Nurse1629195631
- Wyatt Bell, DOStudent in an Organized Health Care Education/Training Program1831987130
Verify Larry D. Plemmons in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWyoming Board of Medicine
Search for license 5874ACheck the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
96% fewer Medicare Part D claims than the average addiction psychiatry physician in 2024
27 Medicare Part D claims, against an average of 716 among the 421 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.
Addiction Psychiatry Physician providers in Wyoming
There are 1 addiction psychiatry physician records in Wyoming.
All 1 in Wyoming → Every provider in Casper → Addiction Psychiatry Physician nationwide →
Common questions
What is Larry D. Plemmons, D.O.'s NPI number?
Larry D. Plemmons, D.O.'s National Provider Identifier (NPI) is 1386673366, issued on Jul 1, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Larry D. Plemmons, D.O. located?
The NPPES record lists a practice address at 1522 E A St, Casper, WY, 82601. Phone: (307) 233-6000. Providers update this record themselves, so call before visiting.
How can I verify Larry D. Plemmons, D.O.'s license?
NPPES lists Wyoming license number 5874A, as entered by the provider. Search the Wyoming Board of Medicine at https://wyomedboard.wyo.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Larry D. Plemmons, D.O. prescribe under Medicare Part D?
In 2024, Larry D. Plemmons, D.O. had 27 Medicare Part D claims; the average among addiction psychiatry physician prescribers was 716. 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.