Rebecca Coenen Belsom, M.D.
Rheumatology Physician · Missoula, MT
Rebecca Coenen Belsom, M.D. is a rheumatology physician with a practice address in Missoula, Montana, and NPI 1063604338, issued on Aug 10, 2007. Check the license (Montana 35741, as entered in NPPES) on the Montana Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- Rebecca Coenen Belsom
- Credential
- M.D.
- Primary taxonomy
- Rheumatology Physician 207RR0500X
- License number
- 35741 MT
Self-reported in NPPES; status is on the state search - Practice location
- 500 W Broadway St, Missoula, MT 59802
- Phone
- (406) 721-5600
- Enumerated
- Aug 10, 2007
- Record last updated
- Jun 21, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (406) 721-3907
- Medicare enrollment
- Enrolled (PECOS I20150416000000); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
Also registered at 500 W Broadway St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Rebecca Coenen Belsom in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMontana Board of Medical Examiners
Search for license 35741Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.0 times the Medicare Part D claims of the average rheumatology physician in 2024
4,013 Medicare Part D claims for 502 beneficiaries, against an average of 1,978 among the 6,301 providers of this specialty who prescribed in Part D. 312 claims were for opioids.
Most prescribed
- Hydroxychloroquine Sulfate616 claims
- Methotrexate560 claims
- Prednisone400 claims
- Gabapentin206 claims
- Hydrocodone-Acetaminophen181 claims
- Leflunomide157 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: $849.41
45 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 4,486 providers of this specialty with any payment received $8,538.33 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.
Bills Medicare through one group practice
- Western Montana Clinic PCMissoula, MT
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Rheumatology Physician providers in Montana
There are 20 rheumatology physician records in Montana.
Other rheumatology physician records in Montana
- Steven Akre, MDGreat Falls, MT1114928090
- Enrico Arguelles, MDBillings, MT1932206505
- James Bennett, M.D.Helena, MT1588920896
- Ann Corsi, MDMissoula, MT1568418630
- Rebecca Danforth, M.D.Missoula, MT1164570172
- Roger Diegel, MDKalispell, MT1770660896
- Steven Ecklund, M.D.Anaconda, MT1942260773
- Susan English, M.D.Missoula, MT1144243155
- Phillip Griffin, M.D.Billings, MT1013166164
- Vaani Jegapragasan, MDBozeman, MT1295950756
Common questions
What is Rebecca Coenen Belsom, M.D.'s NPI number?
Rebecca Coenen Belsom, M.D.'s National Provider Identifier (NPI) is 1063604338, issued on Aug 10, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Rebecca Coenen Belsom, M.D. located?
The NPPES record lists a practice address at 500 W Broadway St, Missoula, MT, 59802. Phone: (406) 721-5600. Providers update this record themselves, so call before visiting.
How can I verify Rebecca Coenen Belsom, M.D.'s license?
NPPES lists Montana license number 35741, 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 Rebecca Coenen Belsom, M.D. prescribe under Medicare Part D?
In 2024, Rebecca Coenen Belsom, M.D. had 4,013 Medicare Part D claims for 502 beneficiaries; the average among rheumatology physician prescribers was 1,978. 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.