James Barry Oser, M.D.
Family Medicine Physician · Deer Lodge, MT
James Barry Oser, M.D. is a family medicine physician with a practice address in Deer Lodge, Montana, and NPI 1629121082, issued on Jan 19, 2007. Check the license (Montana 8286, as entered in NPPES) on the Montana Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- James Barry Oser
- Credential
- M.D.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 8286 MT
Self-reported in NPPES; status is on the state search - Practice location
- 1101 Texas Ave, Deer Lodge, MT 59722
- Phone
- (406) 846-1722
- Enumerated
- Jan 19, 2007
- Record last updated
- Sep 21, 2009 (not updated in 17 years: call before relying on the address or phone)
- Fax
- (406) 846-3074
- Medicare enrollment
- Enrolled (PECOS I20081201000007); accepts Medicare assignment
- Medical or professional school
- University Of Toledo 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 1101 Texas Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Barb Bailey, PA-CPhysician Assistant1396898755
- Leonard Bauer, M.D.Family Medicine Physician1508880527
- Thomas Rachie, D.C.Chiropractor1942515762
Verify James Barry Oser in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMontana Board of Medical Examiners
Search for license 8286Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
95% fewer Medicare Part D claims than the average family medicine physician in 2024
193 Medicare Part D claims for 138 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. 21 claims were for opioids.
Most prescribed
- Prednisone24 claims
- Ondansetron Odt15 claims
- Cefuroxime13 claims
- Hydrocodone-Acetaminophen11 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
- Scl Health Medical Group-Butte LLCButte, MT
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
James Barry Oser among 775 family medicine physician records in Montana
James Barry Oser, 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 2007, is newer than 50% of them.
- NPI issued2007 · 50% of these records are older, 40% 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 updated2009 · 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).
9 family medicine physician records list a practice address in Deer Lodge
They are 9 of the 53 NPPES records with a practice address in Deer Lodge, and 775 family medicine physician records in Montana.
All 775 in Montana → Every provider in Deer Lodge → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Leonard Bauer, M.D.Deer Lodge, MT 597221508880527
- Lori Drumm, D.O.Deer Lodge, MT 597221750393757
- Michelle Howard, M.D.Deer Lodge, MT 597221265585608
- Tristan Kohut, DODeer Lodge, MT 597221841319878
- Patrick Krach, MDDeer Lodge, MT 597221528627973
- Summera Qamar, MDDeer Lodge, MT 597221891083937
- Paul Rees, MDDeer Lodge, MT 597221215970504
- Daniel Woydick, MDDeer Lodge, MT 597221114020021
Common questions
What is James Barry Oser, M.D.'s NPI number?
James Barry Oser, M.D.'s National Provider Identifier (NPI) is 1629121082, issued on Jan 19, 2007. An NPI identifies a provider in billing; it is not a license.
Where is James Barry Oser, M.D. located?
The NPPES record lists a practice address at 1101 Texas Ave, Deer Lodge, MT, 59722. Phone: (406) 846-1722. Providers update this record themselves, so call before visiting.
How can I verify James Barry Oser, M.D.'s license?
NPPES lists Montana license number 8286, 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 James Barry Oser, M.D. prescribe under Medicare Part D?
In 2024, James Barry Oser, M.D. had 193 Medicare Part D claims for 138 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.