Gregory P. Gramelspacher, MD
Internal Medicine Physician · Indianapolis, IN
Gregory P. Gramelspacher, MD is an internal medicine physician with a practice address in Indianapolis, Indiana, and NPI 1013974088, issued on Apr 26, 2006. Check the license (Indiana 01032174A, as entered in NPPES) on the Medical Licensing Board of Indiana; the Medicare figures below come from public CMS files.
- Name
- Gregory P. Gramelspacher
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 01032174A IN
Self-reported in NPPES; status is on the state search - Practice location
- 1001 W 10TH St, Indianapolis, IN 46202
- Phone
- (317) 630-7979
- Enumerated
- Apr 26, 2006
- Record last updated
- Feb 16, 2012 (not updated in 14 years: call before relying on the address or phone)
- Fax
- (317) 630-2668
- Medicaid ID
- 100129550 IN
- Entity
- Type 1 · individual
Also registered at 1001 W 10TH St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Lillian Abdur-Rahman, NPAdult Health Nurse Practitioner1316053283
- Zhanna Albany, MDInternal Medicine Physician1861654220
- Elif AysinRegistered Dietitian1851602577
- Dean Babcock, MSWClinical Social Worker1508987454
- Christine Balt, N.P.Family Nurse Practitioner1093773020
- Jean BandosClinical Nurse Specialist1720039589
Verify Gregory P. Gramelspacher in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Licensing Board of Indiana
Search for license 01032174ACheck the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
96% fewer Medicare Part D claims than the average internal medicine physician in 2024
140 Medicare Part D claims for 24 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of claims.
Most prescribed
- Levothyroxine Sodium20 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.
699 internal medicine physician records list a practice address in Indianapolis
They are 699 of the 30,493 NPPES records with a practice address in Indianapolis, and 2,109 internal medicine physician records in Indiana.
All 699 in Indianapolis → All 2,109 in Indiana → Every provider in Indianapolis →
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- Almaz Abdyrakov, M.D.Hammond, IN1407102338
- Audrey Abell, M.D.Plainfield, IN1457346579
- Linda Abels, MDCarmel, IN1396718292
- Ruth Abramovitz, MDWest Lafayette, IN1649248915
- Rona Abu Manneh, M.D.Fishers, IN1548432511
Common questions
What is Gregory P. Gramelspacher, MD's NPI number?
Gregory P. Gramelspacher, MD's National Provider Identifier (NPI) is 1013974088, issued on Apr 26, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Gregory P. Gramelspacher, MD located?
The NPPES record lists a practice address at 1001 W 10TH St, Indianapolis, IN, 46202. Phone: (317) 630-7979. Providers update this record themselves, so call before visiting.
How can I verify Gregory P. Gramelspacher, MD's license?
NPPES lists Indiana license number 01032174A, 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 Gregory P. Gramelspacher, MD prescribe under Medicare Part D?
In 2024, Gregory P. Gramelspacher, MD had 140 Medicare Part D claims for 24 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.