Chelsey Clark, PA-C, RDN, CDCES,CLC
Physician Assistant · Big Timber, MT
Chelsey Clark, PA-C, RDN, CDCES,CLC is a physician assistant with a practice address in Big Timber, Montana, and NPI 1699172049, issued on Dec 1, 2014. Check the license (Montana 21049, as entered in NPPES) with the Montana board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Chelsey Clark
- Credential
- PA-C, RDN, CDCES,CLC
- Primary taxonomy
- Physician Assistant 363A00000X
- License number
- 21049 MT
Self-reported in NPPES; status is on the state search - Practice location
- 701 Stock St, Big Timber, MT 59011
- Phone
- (406) 932-4199
- Enumerated
- Dec 1, 2014
- Record last updated
- Mar 11, 2025
- Fax
- (406) 932-5490
- Medicare enrollment
- Enrolled (PECOS I20231204001014); accepts Medicare assignment
- Entity
- Type 1 · individual
Also registered at 701 Stock St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Sarah Walton, FNPFamily Nurse Practitioner1558428656
- Kelsi Wilson, PT, ATCPhysical Therapist1083049522
Verify Chelsey Clark in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Montana board licenses this profession
Search for license 21049Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
29% more Medicare Part D claims than the average physician assistant in 2024
1,069 Medicare Part D claims for 119 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. Brand-name drugs were 18% of claims. 56 claims were for opioids.
Most prescribed
- Losartan Potassium54 claims
- Levothyroxine Sodium43 claims
- Omeprazole41 claims
- Amlodipine Besylate40 claims
- Gabapentin34 claims
- Meloxicam30 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.
Industry payments in 2024: $38.77
2 payments; by number, the most common kind was food and beverage; the largest payer was Edwards Lifesciences Corporation. The 64,719 providers of this specialty with any payment received $841.65 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
2 hospitals and group practices
- County OF Sweet GrassBig Timber, MT
- Pioneer Medical CenterBig Timber, MT · Critical Access Hospitals
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov).
1 physician assistant records list a practice address in Big Timber
They are 1 of the 18 NPPES records with a practice address in Big Timber, and 698 physician assistant records in Montana.
Other physician assistant records in Montana
- Jessika Abbrescia, PACKalispell, MT1740959915
- Cynthia Alarcon, PA-CHelena, MT1386981686
- Patrick Alduenda, PA-CHelena, MT1710967724
- Sheryl Alexander, D.C., P.A.Missoula, MT1326199951
- Jesse Alfiero, PA-CRonan, MT1396491155
- Robert Alfiero, PA-CRonan, MT1417029059
- Janel Allison-Shamblin, PA-CBozeman, MT1437626751
- Luke Altenhofen, PA-CLame Deer, MT1407221708
- Alexandra AlthofBillings, MT1487338034
- Brenda Anderson, PA-CKalispell, MT1912145467
Common questions
What is Chelsey Clark, PA-C, RDN, CDCES,CLC's NPI number?
Chelsey Clark, PA-C, RDN, CDCES,CLC's National Provider Identifier (NPI) is 1699172049, issued on Dec 1, 2014. An NPI identifies a provider in billing; it is not a license.
Where is Chelsey Clark, PA-C, RDN, CDCES,CLC located?
The NPPES record lists a practice address at 701 Stock St, Big Timber, MT, 59011. Phone: (406) 932-4199. Providers update this record themselves, so call before visiting.
How can I verify Chelsey Clark, PA-C, RDN, CDCES,CLC's license?
NPPES lists Montana license number 21049, as entered by the provider. Search the Montana board that licenses this profession; the NPPES record confirms identity only.
How much does Chelsey Clark, PA-C, RDN, CDCES,CLC prescribe under Medicare Part D?
In 2024, Chelsey Clark, PA-C, RDN, CDCES,CLC had 1,069 Medicare Part D claims for 119 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.