John Hagan, MD
Internal Medicine Physician · Bismarck, ND
John Hagan, MD is an internal medicine physician with a practice address in Bismarck, North Dakota, and NPI 1598819856, issued on Jan 23, 2007. Check the license (North Dakota 8370, as entered in NPPES) on the North Dakota Board of Medicine; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- John Hagan
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 8370 ND
Self-reported in NPPES; status is on the state search - Practice location
- 900 E Broadway Avenue, Bismarck, ND 58501
- Phone
- (701) 530-7000
- Enumerated
- Jan 23, 2007
- Entity
- Type 1 · individual
Also registered at 900 E Broadway Avenue
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify John Hagan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNorth Dakota Board of Medicine
Search for license 8370Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
63 internal medicine physician records list a Bismarck practice address
They are 63 of the 3,669 NPPES records with a Bismarck practice address, and 335 internal medicine physician records in North Dakota. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 63 in Bismarck → All 335 in North Dakota → Every provider in Bismarck →
Other internal medicine physician records in North Dakota
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- Kenneth Aduba, M.DGrand Forks, ND1437505245
- Ozheh Aghdasi, M.D.Fargo, ND1710413679
- Rita Ahmad, MDFargo, ND1376383778
- Nandakishore Akula, MDGrand Forks, ND1568714541
- Baha Alabid, MDFargo, ND1386908747
- Neville Alberto, MDFargo, ND1225055213
- Usman Ali, M.DFargo, ND1245612084
Common questions
What is John Hagan, MD's NPI number?
John Hagan, MD's National Provider Identifier (NPI) is 1598819856, issued on Jan 23, 2007. An NPI identifies a provider in billing; it is not a license.
Where is John Hagan, MD located?
The NPPES record lists a practice address at 900 E Broadway Avenue, Bismarck, ND, 58501. Phone: (701) 530-7000. Providers update this record themselves, so call before visiting.
How can I verify John Hagan, MD's license?
NPPES lists North Dakota license number 8370, as entered by the provider. Search the North Dakota Board of Medicine at https://www.ndbom.org/. 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), loaded Aug 27, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.