Carol A. Calderwood, MD
Family Medicine Physician · Hamilton, MT
Carol A. Calderwood, MD is a family medicine physician with a practice address in Hamilton, Montana, and NPI 1487607354, issued on May 19, 2006. Check the license (Montana MED-PHYS-LIC-7128, as entered in NPPES) on the Montana Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- Carol A. Calderwood
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- MED-PHYS-LIC-7128 MT
Self-reported in NPPES; status is on the state search - Practice location
- 1200 Westwood Dr Ste I, Hamilton, MT 59840
- Phone
- (406) 363-1100
- Enumerated
- May 19, 2006
- Record last updated
- Nov 12, 2024
- Fax
- (406) 375-4884
- Medicaid IDs
- 100005410 MT
1487607354 ID - Medicare enrollment
- Enrolled (PECOS I20110107000717); accepts Medicare assignment
- Medical or professional school
- Ohio State University College Of Medicine, 1989
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 775 in Montana → Look up another NPI →
Also registered at 1200 Westwood Dr Ste I
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Edward Cleary, PA-CPhysician Assistant1790566321
- Sharon Colchin, FNP-BCFamily Nurse Practitioner1699054627
- Hugh Gapay, PA-CPhysician Assistant1396968202
- Erin Hurst, FNP-BCFamily Nurse Practitioner1083229462
Verify Carol A. Calderwood in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMontana Board of Medical Examiners
Search for license MED-PHYS-LIC-7128Check 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 family medicine physician in 2024
146 Medicare Part D claims for 109 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D.
Most prescribed
- Albuterol Sulfate Hfa15 claims
- Amoxicillin12 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
- Marcus Daly Memorial Hospital CorporationHamilton, MT
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Carol A. Calderwood among 775 family medicine physician records in Montana
Carol A. Calderwood, MD 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 2006, is newer than 9% of them.
- NPI issued2006 · 9% of these records are older, 50% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated1989 · median 2007 among the 464 with a school on file
- Record last updated2024 · 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).
20 family medicine physician records list a practice address in Hamilton
They are 20 of the 399 NPPES records with a practice address in Hamilton, and 775 family medicine physician records in Montana.
All 775 in Montana → Every provider in Hamilton → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Walker Ashcraft, MDHamilton, MT 598401265485114
- Teresa Borino, M.D.Hamilton, MT 598401700847498
- Lawrence Brouwer, MDHamilton, MT 598401306922885
- Mandi Griffin, M.D.Hamilton, MT 598401649476680
- Kathleen Harder-Brouwer, MDHamilton, MT 598401730265208
- Harvard Heath, M.D.Hamilton, MT 598401811958523
- Allen Jones, M.D.Hamilton, MT 598401114926102
- Brenda Kirkland, MDHamilton, MT 598401780623181
Common questions
What is Carol A. Calderwood, MD's NPI number?
Carol A. Calderwood, MD's National Provider Identifier (NPI) is 1487607354, issued on May 19, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Carol A. Calderwood, MD located?
The NPPES record lists a practice address at 1200 Westwood Dr Ste I, Hamilton, MT, 59840. Phone: (406) 363-1100. Providers update this record themselves, so call before visiting.
How can I verify Carol A. Calderwood, MD's license?
NPPES lists Montana license number MED-PHYS-LIC-7128, 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 Carol A. Calderwood, MD prescribe under Medicare Part D?
In 2024, Carol A. Calderwood, MD had 146 Medicare Part D claims for 109 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.
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.