Michael Callahan, MD
Gynecologic Oncology Physician · Indianapolis, IN
Michael Callahan, MD is a gynecologic oncology physician with a practice address in Indianapolis, Indiana, and NPI 1548396492, issued on Feb 26, 2007. Check the license (Indiana 01053762A, as entered in NPPES) on the Medical Licensing Board of Indiana; the Medicare figures below come from public CMS files.
- Name
- Michael Callahan
- Credential
- MD
- Primary taxonomy
- Gynecologic Oncology Physician 207VX0201X
- License number
- 01053762A IN
Self-reported in NPPES; status is on the state search - Practice location
- 8402 Harcourt RD Ste 420, Indianapolis, IN 46260
- Phone
- (317) 415-6740
- Enumerated
- Feb 26, 2007
- Record last updated
- Jun 6, 2022
- Medicare enrollment
- Enrolled (PECOS I20070711000417); accepts Medicare assignment
- Medical or professional school
- Indiana University School Of Medicine, 1999
- Entity
- Type 1 · individual
8 nearest gynecologic oncology physician records → All 27 in Indiana → Look up another NPI →
Also registered at 8402 Harcourt RD Ste 420
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Megan Buechel, M.D.Gynecologic Oncology Physician1215203559
- Carli Dekeyser, CNPWomen's Health Nurse Practitioner1982268751
- Ellyn Edwards, PA-CMedical Physician Assistant1801363023
- Wendy Fodstad, PAPhysician Assistant1376810820
- Sarah Goodrich, MDGynecologic Oncology Physician1760656508
- Hilary Hinshaw, MDGynecologic Oncology Physician1811211519
Verify Michael Callahan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Licensing Board of Indiana
Search for license 01053762ACheck the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
8% more Medicare Part D claims than the average gynecologic oncology physician in 2024
210 Medicare Part D claims for 59 beneficiaries, against an average of 195 among the 1,475 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims.
Most prescribed
- Letrozole30 claims
- Ondansetron Odt27 claims
- Anastrozole16 claims
- Betamethasone Diprop Augmented14 claims
- Megestrol Acetate12 claims
- Prochlorperazine Maleate12 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $63.89
3 payments; by number, the most common kind was food and beverage; the largest payer was Daiichi Sankyo Inc. The 1,199 providers of this specialty with any payment received $6,387.20 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- St Vincent Physician Services Hospital And Health Care CenterIndianapolis, IN
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Michael Callahan among 27 gynecologic oncology physician records in Indiana
Michael Callahan, MD is one of 27 gynecologic oncology physician records with a practice address in Indiana. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 33% of them.
- NPI issued2007 · 33% of these records are older, 52% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 70% of these records are
- Graduated1999 · median 2007 among the 19 with a school on file
- Record last updated2022 · 19% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207VX0201X and a Indiana practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Gynecologic Oncology Physician providers in Indiana
There are 27 gynecologic oncology physician records in Indiana.
All 27 in Indiana → Every provider in Indianapolis → Gynecologic Oncology Physician nationwide →
The 8 gynecologic oncology physician records with the nearest ZIP codes
- Megan Buechel, M.D.Indianapolis, IN 462601215203559
- Sarah Goodrich, MDIndianapolis, IN 462601760656508
- Hilary Hinshaw, MDIndianapolis, IN 462601811211519
- James Cripe, M.D.Indianapolis, IN 462501679860894
- Michael Method, M.D.Indianapolis, IN 462501437153913
- Tina Ayeni, MDIndianapolis, IN 462371306006218
- James Dunlop, M.D.Indianapolis, IN 462371154317675
- David Moore, MDIndianapolis, IN 462371134180078
Common questions
What is Michael Callahan, MD's NPI number?
Michael Callahan, MD's National Provider Identifier (NPI) is 1548396492, issued on Feb 26, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Michael Callahan, MD located?
The NPPES record lists a practice address at 8402 Harcourt RD Ste 420, Indianapolis, IN, 46260. Phone: (317) 415-6740. Providers update this record themselves, so call before visiting.
How can I verify Michael Callahan, MD's license?
NPPES lists Indiana license number 01053762A, 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.
How much does Michael Callahan, MD prescribe under Medicare Part D?
In 2024, Michael Callahan, MD had 210 Medicare Part D claims for 59 beneficiaries; the average among gynecologic oncology physician prescribers was 195. Part D covers Medicare prescriptions only.
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.