NPPES file of Aug 9, 2026

Claire A. Frost, M.D.

Family Medicine Physician · Missoula, MT

Claire A. Frost, M.D. is a family medicine physician with a practice address in Missoula, Montana, and NPI 1235571993, issued on Jul 23, 2013. Check the license (Montana 80538, as entered in NPPES) on the Montana Board of Medical Examiners; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1235571993
Name
Claire A. Frost
Credential
M.D.
Primary taxonomy
Family Medicine Physician 207Q00000X
License numbers
80538 MT
ML 113855 AK
MD 60587328 WA
Self-reported in NPPES; status is on the state search
Practice location
1211 S Reserve St Ste 101, Missoula, MT 59801
Phone
(406) 327-3057
Enumerated
Jul 23, 2013
Record last updated
Dec 6, 2019 (not updated in 7 years: call before relying on the address or phone)
Fax
(406) 327-3231
Medicare enrollment
Enrolled (PECOS I20200114002760); accepts Medicare assignment
Medical or professional school
University Of Vermont College Of Medicine, 2013
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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8 nearest family medicine physician records → All 775 in Montana → Look up another NPI →

Also registered at 1211 S Reserve St Ste 101

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Kayleigh Anderson, APRNFamily Nurse Practitioner1235808338
  2. Noor Bass, DOFamily Medicine Physician1407233653
  3. Libby Costello Gard, FNPFamily Nurse Practitioner1326239195
  4. Kathryn Foote, FNPFamily Nurse Practitioner1568886844
  5. Samuel Matz, MDFamily Medicine Physician1356963482
  6. Whitney Rose, LCSWClinical Social Worker1174977599

Verify Claire A. Frost in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMontana Board of Medical Examiners
    Search for license 80538    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Montana license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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23% fewer Medicare Part D claims than the average family medicine physician in 2024

2,724 Medicare Part D claims for 218 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. 72 claims were for opioids.

  1. Claire Frost2,724
  2. Specialty average3,544

Most prescribed

  1. Levothyroxine Sodium217 claims
  2. Atorvastatin Calcium205 claims
  3. Amlodipine Besylate110 claims
  4. Lisinopril109 claims
  5. Losartan Potassium89 claims
  6. Omeprazole82 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 2 group practices

  1. Blue Mountain Clinic, Inc.Missoula, MT
  2. Providence Health And Services MtMissoula, MT

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Claire A. Frost among 775 family medicine physician records in Montana

Claire A. Frost, M.D. is one of 775 family medicine physician records with a practice address in Montana. 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 2013, is newer than 75% of them.

  • NPI issued2013 · 75% of these records are older, 22% newer
  • In a Medicare fileYes · 75% of these records are
  • In the CMS Doctors and Clinicians fileYes · 60% of these records are
  • Graduated2013 · median 2007 among the 464 with a school on file
  • Record last updated2019 · 53% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Montana practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

110 family medicine physician records list a practice address in Missoula

They are 110 of the 3,567 NPPES records with a practice address in Missoula, and 775 family medicine physician records in Montana.

All 775 in Montana → Every provider in Missoula → Family Medicine Physician nationwide →

The 8 family medicine physician records with the nearest ZIP codes

  1. Joey Banks, MDMissoula, MT 598011528096146
  2. Noor Bass, DOMissoula, MT 598011407233653
  3. Harold Coward, M.D.Missoula, MT 598011568543106
  4. Elena Furrow, M.D.Missoula, MT 598011659333458
  5. Katherine HastingsMissoula, MT 598011528358363
  6. Jonathon James, D.O.Missoula, MT 598011083146310
  7. Samuel Matz, MDMissoula, MT 598011356963482
  8. Marc Mentel, DOMissoula, MT 598011376574871

Common questions

What is Claire A. Frost, M.D.'s NPI number?

Claire A. Frost, M.D.'s National Provider Identifier (NPI) is 1235571993, issued on Jul 23, 2013. An NPI identifies a provider in billing; it is not a license.

Where is Claire A. Frost, M.D. located?

The NPPES record lists a practice address at 1211 S Reserve St Ste 101, Missoula, MT, 59801. Phone: (406) 327-3057. Providers update this record themselves, so call before visiting.

How can I verify Claire A. Frost, M.D.'s license?

NPPES lists Montana license number 80538, as entered by the provider. Search the Montana Board of Medical Examiners at https://ebiz.mt.gov/POL/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Claire A. Frost, M.D. prescribe under Medicare Part D?

In 2024, Claire A. Frost, M.D. had 2,724 Medicare Part D claims for 218 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.