John Waldron McCahan, MD
Rheumatology Physician · Bozeman, MT
John Waldron McCahan, MD is a rheumatology physician with a practice address in Bozeman, Montana, and NPI 1144319922, issued on Oct 12, 2006. Check the license (Montana 12743, as entered in NPPES) on the Montana Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- John Waldron McCahan
- Credential
- MD
- Primary taxonomy
- Rheumatology Physician 207RR0500X
- License number
- 12743 MT
Self-reported in NPPES; status is on the state search - Practice location
- 931 Highland Blvd Ste 3260, Bozeman, MT 59715
- Phone
- (406) 414-5198
- Enumerated
- Oct 12, 2006
- Record last updated
- Apr 9, 2025
- Medicare enrollment
- Enrolled (PECOS I20111201000599); accepts Medicare assignment
- Medical or professional school
- Temple University School Of Medicine, 2003
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
Also registered at 931 Highland Blvd Ste 3260
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Vaani Jegapragasan, MDRheumatology Physician1295950756
- Anna Jovanovich, MDNephrology Physician1164697017
- Matthew Kirkpatrick, M.D.Rheumatology Physician1437449337
- Melissa Reily, M.D.Rheumatology Physician1003090481
- Cindy Sharp, MDNephrology Physician1629138797
- Clare Welch, PA-CMedical Physician Assistant1851647663
Verify John Waldron McCahan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMontana Board of Medical Examiners
Search for license 12743Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
17% more Medicare Part D claims than the average rheumatology physician in 2024
2,311 Medicare Part D claims for 340 beneficiaries, against an average of 1,978 among the 6,301 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims. 295 claims were for opioids.
Most prescribed
- Methotrexate452 claims
- Hydroxychloroquine Sulfate295 claims
- Prednisone279 claims
- Alendronate Sodium118 claims
- Hydrocodone-Acetaminophen118 claims
- Tramadol Hcl98 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.
The practice group's MIPS final score for 2023 (Medicare payment program): 80.8 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $96.10
4 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.
One hospital affiliation
- Bozeman Health Deaconess HospitalBozeman, MT · Acute Care Hospitals4 of 5 stars
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). Star ratings are CMS hospital ratings, not ratings of this provider.
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
- Rebecca Belsom, M.D.Missoula, MT1063604338
- 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
Common questions
What is John Waldron McCahan, MD's NPI number?
John Waldron McCahan, MD's National Provider Identifier (NPI) is 1144319922, issued on Oct 12, 2006. An NPI identifies a provider in billing; it is not a license.
Where is John Waldron McCahan, MD located?
The NPPES record lists a practice address at 931 Highland Blvd Ste 3260, Bozeman, MT, 59715. Phone: (406) 414-5198. Providers update this record themselves, so call before visiting.
How can I verify John Waldron McCahan, MD's license?
NPPES lists Montana license number 12743, 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 John Waldron McCahan, MD prescribe under Medicare Part D?
In 2024, John Waldron McCahan, MD had 2,311 Medicare Part D claims for 340 beneficiaries; the average among rheumatology physician prescribers was 1,978. Part D covers Medicare prescriptions only.
What is John Waldron McCahan, MD's MIPS final score?
The 2023 MIPS final score is 80.8 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.