James Wesley Guyer, M.D.
Family Medicine Physician · Billings, MT
James Wesley Guyer, M.D. is a family medicine physician with a practice address in Billings, Montana, and NPI 1962495697, issued on Aug 29, 2005. Check the license (Montana 7605, as entered in NPPES) on the Montana Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- James Wesley Guyer
- Credential
- M.D.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 7605 MT
Self-reported in NPPES; status is on the state search - Practice location
- 123 S 27TH St, Billings, MT 59101
- Phone
- (406) 247-3350
- Enumerated
- Aug 29, 2005
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20040227000477); accepts Medicare assignment
- Medical or professional school
- University Of California, San Diego School Of Medicine, 1984
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 775 in Montana → Look up another NPI →
Also registered at 123 S 27TH St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Emily AertsClinical Social Worker1154894186
- Dale Agner, M.D.Family Medicine Physician1861486490
- Hannah Akard, RNCase Management Registered Nurse1346938750
- Doug AndersenSocial Worker1619392321
- Rachel AndersonRegistered Dietitian1174847099
- Tammi Anderson, LCPC, LACMental Health Counselor1083956783
Verify James Wesley Guyer in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMontana Board of Medical Examiners
Search for license 7605Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through one group practice
- Yellowstone City-County Health DeptBillings, MT
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
James Wesley Guyer among 775 family medicine physician records in Montana
James Wesley Guyer, 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 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 91% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated1984 · median 2007 among the 464 with a school on file
- Record last updated2007 · 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).
111 family medicine physician records list a practice address in Billings
They are 111 of the 4,035 NPPES records with a practice address in Billings, and 775 family medicine physician records in Montana.
All 775 in Montana → Every provider in Billings → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Dale Agner, M.D.Billings, MT 591011861486490
- Bryn Burnham, D.O.Billings, MT 591011164476693
- Emily Colson, MDBillings, MT 591011952397929
- Diana Doll, MDBillings, MT 591011942263405
- Roxanne Fahrenwald, MDBillings, MT 591011104810688
- Paolo Gerbasi, MDBillings, MT 591011134166622
- Thomas James, MDBillings, MT 591011831183482
- Deborah Johnston, PA-CBillings, MT 591011407880396
Common questions
What is James Wesley Guyer, M.D.'s NPI number?
James Wesley Guyer, M.D.'s National Provider Identifier (NPI) is 1962495697, issued on Aug 29, 2005. An NPI identifies a provider in billing; it is not a license.
Where is James Wesley Guyer, M.D. located?
The NPPES record lists a practice address at 123 S 27TH St, Billings, MT, 59101. Phone: (406) 247-3350. Providers update this record themselves, so call before visiting.
How can I verify James Wesley Guyer, M.D.'s license?
NPPES lists Montana license number 7605, 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.
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.