John C. Marxer, MD
Anesthesiology Physician · Indianapolis, IN
John C. Marxer, MD is an anesthesiology physician with a practice address in Indianapolis, Indiana, and NPI 1609404631, issued on Mar 27, 2020. Check the license (Indiana 01089404A, as entered in NPPES) on the Medical Licensing Board of Indiana; the Medicare figures below come from public CMS files.
- Name
- John C. Marxer
- Credential
- MD
- Primary taxonomy
- Anesthesiology Physician 207L00000X
- License number
- 01089404A IN
Self-reported in NPPES; status is on the state search - Practice location
- 1130 West Michigan Street, Indianapolis, IN 46202
- Phone
- (317) 274-0076
- Enumerated
- Mar 27, 2020
- Record last updated
- Apr 1, 2025
- Fax
- (317) 274-0256
- Medicare enrollment
- Enrolled (PECOS I20240722002920); accepts Medicare assignment
- Medical or professional school
- Indiana University School Of Medicine, 2020
- Entity
- Type 1 · individual
8 nearest anesthesiology physician records → All 1,448 in Indiana → Look up another NPI →
Also registered at 1130 West Michigan Street
A shared address usually means a shared clinic or building; it does not show who employs whom.
- James DaggettAnesthesiology Physician1144859596
- Harkeerat Dhami, MDAnesthesiology Physician1649929118
- Michael Ford, D.O.Anesthesiology Physician1043742521
- Jason Garrett, DO (MAY 2021)Student in an Organized Health Care Education/Training Program1710566864
- Mitchel Lau, DOStudent in an Organized Health Care Education/Training Program1982345971
- Monica O'Doherty, DOAnesthesiology Physician1649773854
Verify John C. Marxer in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Licensing Board of Indiana
Search for license 01089404ACheck 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
- IU Health Medical Group LLCIndianapolis, IN
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
John C. Marxer among 1,448 anesthesiology physician records in Indiana
John C. Marxer, MD is one of 1,448 anesthesiology physician records with a practice address in Indiana. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2020, is newer than 93% of them.
- NPI issued2020 · 93% of these records are older, 4% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 74% of these records are
- Graduated2020 · median 2004 among the 1,071 with a school on file
- Record last updated2025 · 50% 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 Indiana practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
622 anesthesiology physician records list a practice address in Indianapolis
They are 622 of the 30,493 NPPES records with a practice address in Indianapolis, and 1,448 anesthesiology physician records in Indiana.
All 1,448 in Indiana → Every provider in Indianapolis → Anesthesiology Physician nationwide →
The 8 anesthesiology physician records with the nearest ZIP codes
- Thomas Brady, D.O.Indianapolis, IN 462021700865391
- Jill Denney, MDIndianapolis, IN 462021215901954
- Chakrapani Gupta, MDIndianapolis, IN 462021578539474
- James Knott, MDIndianapolis, IN 462021073592408
- Gang Li, MDIndianapolis, IN 462021144217795
- Joseph Loskove, MDIndianapolis, IN 462021932172111
- Lorne McKay, MDIndianapolis, IN 462021144291592
- Lara PesaventoIndianapolis, IN 462021073501235
Common questions
What is John C. Marxer, MD's NPI number?
John C. Marxer, MD's National Provider Identifier (NPI) is 1609404631, issued on Mar 27, 2020. An NPI identifies a provider in billing; it is not a license.
Where is John C. Marxer, MD located?
The NPPES record lists a practice address at 1130 West Michigan Street, Indianapolis, IN, 46202. Phone: (317) 274-0076. Providers update this record themselves, so call before visiting.
How can I verify John C. Marxer, MD's license?
NPPES lists Indiana license number 01089404A, as entered by the provider. Search the Medical Licensing Board of Indiana at https://www.in.gov/pla/professions/physicians-home/. 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.