John Gabriel Hagen, M.D.
Anesthesiology Physician · Ann Arbor, MI
John Gabriel Hagen, M.D. is an anesthesiology physician with a practice address in Ann Arbor, Michigan, and NPI 1649430026, issued on Jun 10, 2008. Check the license (Michigan 4301098090, as entered in NPPES) on the Michigan Board of Medicine (LARA); the Medicare figures below come from public CMS files.
- Name
- John Gabriel Hagen
- Credential
- M.D.
- Primary taxonomy
- Anesthesiology Physician 207L00000X
- License numbers
- 4301098090 MI
P73032 NY
Self-reported in NPPES; status is on the state search - Practice location
- 712 W Huron St Apt 107, Ann Arbor, MI 48103
- Phone
- (917) 434-3548
- Enumerated
- Jun 10, 2008
- Record last updated
- Oct 30, 2019 (not updated in 7 years: call before relying on the address or phone)
- Medicaid ID
- 03463898 NY
- Medicare enrollment
- Enrolled (PECOS I20120703000445); accepts Medicare assignment
- Medical or professional school
- State University Of New York Downstate Medical Center, 2007
- Entity
- Type 1 · individual
8 nearest anesthesiology physician records → All 1,720 in Michigan → Look up another NPI →
Verify John Gabriel Hagen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMichigan Board of Medicine (LARA)
Search for license 4301098090Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
The practice group's MIPS final score for 2023 (Medicare payment program): 87.1 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).
Bills Medicare through 2 group practices
- Memorial Anesthesiology GroupNew York, NY
- Mskcc Regional NetworkCommack, NY
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
John Gabriel Hagen among 1,720 anesthesiology physician records in Michigan
John Gabriel Hagen, M.D. is one of 1,720 anesthesiology physician records with a practice address in Michigan. 71% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 55% of them.
- NPI issued2008 · 55% of these records are older, 41% newer
- In a Medicare fileYes · 71% of these records are
- In the CMS Doctors and Clinicians fileYes · 65% of these records are
- Graduated2007 · median 2006 among the 1,126 with a school on file
- Record last updated2019 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207L00000X and a Michigan practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
395 anesthesiology physician records list a practice address in Ann Arbor
They are 395 of the 15,616 NPPES records with a practice address in Ann Arbor, and 1,720 anesthesiology physician records in Michigan.
All 1,720 in Michigan → Every provider in Ann Arbor → Anesthesiology Physician nationwide →
The 8 anesthesiology physician records with the nearest ZIP codes
- Jessica Newman, M.D.Ann Arbor, MI 481031104145739
- Taufiek Alhadi, D.O.Ann Arbor, MI 481051902864820
- Siraj Alseri, M.D.Ann Arbor, MI 481051932155124
- Thomas Bonifer, M.D.Ann Arbor, MI 481051811943657
- Peter Bozeman, M.D.Ann Arbor, MI 481051669428819
- Julie Dutton, D.O.Ann Arbor, MI 481051518925379
- Samvid Dwivedi, D.O.Detroit, MI 481011306071824
- Angel Gomez, M.D.Ann Arbor, MI 481051861449761
Common questions
What is John Gabriel Hagen, M.D.'s NPI number?
John Gabriel Hagen, M.D.'s National Provider Identifier (NPI) is 1649430026, issued on Jun 10, 2008. An NPI identifies a provider in billing; it is not a license.
Where is John Gabriel Hagen, M.D. located?
The NPPES record lists a practice address at 712 W Huron St Apt 107, Ann Arbor, MI, 48103. Phone: (917) 434-3548. Providers update this record themselves, so call before visiting.
How can I verify John Gabriel Hagen, M.D.'s license?
NPPES lists Michigan license number 4301098090, as entered by the provider. Search the Michigan Board of Medicine (LARA) at https://aca-prod.accela.com/MILARA/GeneralProperty/PropertyLookUp.aspx?isLicensee=Y&TabName=APO. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
What is John Gabriel Hagen, M.D.'s MIPS final score?
The 2023 MIPS final score is 87.1 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.