Clancy Joyce Hartman, FNP-C
Family Nurse Practitioner · Lewistown, MT
Clancy Joyce Hartman, FNP-C is a family nurse practitioner with a practice address in Lewistown, Montana, and NPI 1235818535, issued on Jul 13, 2023. Check the license (Montana 217113, as entered in NPPES) with the Montana board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Clancy Joyce Hartman
- Credential
- FNP-C
- Primary taxonomy
- Family Nurse Practitioner 363LF0000X
- License number
- 217113 MT
Self-reported in NPPES; status is on the state search - Practice location
- 311 W Main St, Lewistown, MT 59457
- Phone
- (406) 535-6545
- Enumerated
- Jul 13, 2023
- Record last updated
- Dec 5, 2025
- Medicare enrollment
- Enrolled (PECOS I20230831001457); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest family nurse practitioner records → All 815 in Montana → Look up another NPI →
Also registered at 311 W Main St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Clancy Joyce Hartman in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Montana board licenses this profession
Search for license 217113Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
67% fewer Medicare Part D claims than the average family nurse practitioner in 2024
427 Medicare Part D claims for 84 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D. Brand-name drugs were 17% of claims. 13 claims were for opioids.
Most prescribed
- Losartan Potassium33 claims
- Levothyroxine Sodium20 claims
- Lisinopril19 claims
- Prednisone13 claims
- Trulicity13 claims
- Hydrochlorothiazide12 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
- Bighorn Valley Health Center IncorporatedLewistown, MT
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Clancy Joyce Hartman among 815 family nurse practitioner records in Montana
Clancy Joyce Hartman, FNP-C is one of 815 family nurse practitioner records with a practice address in Montana. 77% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2023, is newer than 84% of them.
- NPI issued2023 · 84% of these records are older, 11% newer
- In a Medicare fileYes · 77% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated2023 · median 2018 among the 505 with a school on file
- Record last updated2025 · 38% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LF0000X and a Montana practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
8 family nurse practitioner records list a practice address in Lewistown
They are 8 of the 175 NPPES records with a practice address in Lewistown, and 815 family nurse practitioner records in Montana.
All 815 in Montana → Every provider in Lewistown → Family Nurse Practitioner nationwide →
The 8 family nurse practitioner records with the nearest ZIP codes
- Amie Baguer, FNPLewistown, MT 594571144198763
- Amber Close, APRNLewistown, MT 594571578872909
- Kimberlee Decker, DNP APRN FNP-BCLewistown, MT 594571184803470
- Shelley Poss, FNPLewistown, MT 594571629045356
- Cheryl Reagan, FNP-CLewistown, MT 594571396386637
- Rebecca Roche, FNPLewistown, MT 594571225690415
- Rosemary Youderian, RNCS FNPLewistown, MT 594571548258718
- Victoria Birkeland, FNPFort Benton, MT 594421740711167
Common questions
What is Clancy Joyce Hartman, FNP-C's NPI number?
Clancy Joyce Hartman, FNP-C's National Provider Identifier (NPI) is 1235818535, issued on Jul 13, 2023. An NPI identifies a provider in billing; it is not a license.
Where is Clancy Joyce Hartman, FNP-C located?
The NPPES record lists a practice address at 311 W Main St, Lewistown, MT, 59457. Phone: (406) 535-6545. Providers update this record themselves, so call before visiting.
How can I verify Clancy Joyce Hartman, FNP-C's license?
NPPES lists Montana license number 217113, as entered by the provider. Search the Montana board that licenses this profession; the NPPES record confirms identity only.
How much does Clancy Joyce Hartman, FNP-C prescribe under Medicare Part D?
In 2024, Clancy Joyce Hartman, FNP-C had 427 Medicare Part D claims for 84 beneficiaries; the average among family nurse practitioner prescribers was 1,305. 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.