Tanya Cook Letham, PA
Physician Assistant · Chamberlain, SD
Tanya Cook Letham, PA is a physician assistant with a practice address in Chamberlain, South Dakota, and NPI 1467755710, issued on Dec 8, 2010. Check the license (South Dakota 1346, as entered in NPPES) with the South Dakota board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Tanya Cook Letham
- Credential
- PA
- Primary taxonomy
- Physician Assistant 363A00000X
- License number
- 1346 SD
Self-reported in NPPES; status is on the state search - Practice location
- 300 S Byron Blvd, Chamberlain, SD 57325
- Phone
- (605) 234-6551
- Enumerated
- Dec 8, 2010
- Record last updated
- Apr 26, 2022
- Medicare enrollment
- Enrolled (PECOS I20220222000384); accepts Medicare assignment
- Entity
- Type 1 · individual
Also registered at 300 S Byron Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Sommer Anstine, PA-CPhysician Assistant1750798039
- Chelsea Bern, CNPNurse Practitioner1669147781
- Paul Bonacci, M.D.Anesthesiology Physician1689701609
- Beau Braun, PA-CPhysician Assistant1922372036
- Destiny Brennan, MPTPhysical Therapist1518310515
- Chad Carda, MDFamily Medicine Physician1013139823
Verify Tanya Cook Letham in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich South Dakota board licenses this profession
Search for license 1346Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
86% fewer Medicare Part D claims than the average physician assistant in 2024
118 Medicare Part D claims for 71 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D.
Most prescribed
- Azithromycin13 claims
- Cefdinir12 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.
Bills Medicare through one group practice
- Avera MckennanSioux Falls, SD
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
6 physician assistant records list a practice address in Chamberlain
They are 6 of the 84 NPPES records with a practice address in Chamberlain, and 674 physician assistant records in South Dakota.
All 6 in Chamberlain → All 674 in South Dakota → Every provider in Chamberlain →
Other physician assistant records in South Dakota
- Michael Aanderud, PA-CRapid City, SD1265412878
- Benjamin Abbey, PA-CMitchell, SD1639590219
- Julia Abraham, PA-CDell Rapids, SD1104082288
- Riley AckermanRapid City, SD1073241790
- Amanda Adams, PA-CHuron, SD1720327331
- Bradley Adams, PACTyndall, SD1336141118
- Jaime Aguilar, PACEagle Butte, SD1962552398
- Lisa Alban, PA-CPierre, SD1851739338
- Melissa Alexander, PASioux Falls, SD1366625352
- Emily Allen, PASioux Falls, SD1508687427
Common questions
What is Tanya Cook Letham, PA's NPI number?
Tanya Cook Letham, PA's National Provider Identifier (NPI) is 1467755710, issued on Dec 8, 2010. An NPI identifies a provider in billing; it is not a license.
Where is Tanya Cook Letham, PA located?
The NPPES record lists a practice address at 300 S Byron Blvd, Chamberlain, SD, 57325. Phone: (605) 234-6551. Providers update this record themselves, so call before visiting.
How can I verify Tanya Cook Letham, PA's license?
NPPES lists South Dakota license number 1346, as entered by the provider. Search the South Dakota board that licenses this profession; the NPPES record confirms identity only.
How much does Tanya Cook Letham, PA prescribe under Medicare Part D?
In 2024, Tanya Cook Letham, PA had 118 Medicare Part D claims for 71 beneficiaries; the average among physician assistant prescribers was 830. 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.