Michael Hagan, MD
Internal Medicine Physician · Billings, MT
Michael Hagan, MD is an internal medicine physician with a practice address in Billings, Montana, and NPI 1710924642, issued on May 31, 2006. Check the license (Montana 7375, as entered in NPPES) on the Montana Board of Medical Examiners; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Michael Hagan
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 7375 MT
Self-reported in NPPES; status is on the state search - Practice location
- 2900 12TH Ave N, Billings, MT 59101
- Phone
- (406) 237-8500
- Enumerated
- May 31, 2006
- Record last updated
- Feb 20, 2014 (not updated in 12 years: call before relying on the address or phone)
- Fax
- (406) 237-8501
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 324 in Montana → Look up another NPI →
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Verify Michael Hagan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMontana Board of Medical Examiners
Search for license 7375Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Michael Hagan among 324 internal medicine physician records in Montana
Michael Hagan, MD is one of 324 internal medicine physician records with a practice address in Montana. 72% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2006, is newer than 7% of them.
- NPI issued2006 · 7% of these records are older, 44% newer
- In a Medicare fileNo · 72% of these records are
- In the CMS Doctors and Clinicians fileNo · 59% of these records are
- Record last updated2014 · 52% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Montana practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
80 internal medicine physician records list a practice address in Billings
They are 80 of the 4,035 NPPES records with a practice address in Billings, and 324 internal medicine physician records in Montana. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 324 in Montana → Every provider in Billings → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Gay Canaris, MDBillings, MT 591011851358147
- Baskar Duval, MDBillings, MT 591011346289758
- Amy Fishburn, MDBillings, MT 591011578500716
- Bradley Fuller, MDBillings, MT 591011083652564
- Matthew Hermann, MDBillings, MT 591011821039355
- Richard Leblond, MDBillings, MT 591011184612715
- Mark Lee, M.D.Billings, MT 591011902884703
- Megan Littlefield, M.D.Billings, MT 591011013964287
Common questions
What is Michael Hagan, MD's NPI number?
Michael Hagan, MD's National Provider Identifier (NPI) is 1710924642, issued on May 31, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Michael Hagan, MD located?
The NPPES record lists a practice address at 2900 12TH Ave N, Billings, MT, 59101. Phone: (406) 237-8500. Providers update this record themselves, so call before visiting.
How can I verify Michael Hagan, MD's license?
NPPES lists Montana license number 7375, 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. 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.