NPPES file of Aug 9, 2026

James G. Leatherman, M.D.

Internal Medicine Physician · Indianapolis, IN

James G. Leatherman, M.D. is an internal medicine physician with a practice address in Indianapolis, Indiana, and NPI 1215971775, issued on Jun 15, 2006. Check the license (Indiana 01032109, as entered in NPPES) on the Medical Licensing Board of Indiana; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1215971775
Name
James G. Leatherman
Credential
M.D.
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
01032109 IN
Self-reported in NPPES; status is on the state search
Practice location
4880 Century Plaza RD, Indianapolis, IN 46254
Phone
(317) 216-2800
Enumerated
Jun 15, 2006
Record last updated
Dec 1, 2020 (not updated in 6 years: call before relying on the address or phone)
Fax
(317) 216-2888
Medicaid ID
200002510 IN
Medicare enrollment
Enrolled (PECOS I20100726000874); accepts Medicare assignment
Medical or professional school
Indiana University School Of Medicine, 1982
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 4880 Century Plaza RD

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Peter Carey, M.D.Family Medicine Physician1366784266
  2. Jeffrey Couture, M.D.Internal Medicine Physician1336185115
  3. Jyoti Das, RPHPharmacist1346357787
  4. Lawrence Degan, MDFamily Medicine Physician1205919545
  5. Patrick Foley, MDFamily Medicine Physician1023103306
  6. Thomas Greist, M.D.Family Medicine Physician1700826591

Verify James G. Leatherman in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Licensing Board of Indiana
    Search for license 01032109
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Indiana license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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72% more Medicare Part D claims than the average internal medicine physician in 2024

5,472 Medicare Part D claims for 480 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 9% of claims. 140 claims were for opioids.

  1. James Leatherman5,472
  2. Specialty average3,176

Most prescribed

  1. Amlodipine Besylate463 claims
  2. Atorvastatin Calcium450 claims
  3. Levothyroxine Sodium219 claims
  4. Losartan Potassium199 claims
  5. Hydrochlorothiazide150 claims
  6. Gabapentin147 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.

Bills Medicare through 2 group practices

  1. Indiana University Health Care Associates IncIndianapolis, IN
  2. 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).

James G. Leatherman among 2,109 internal medicine physician records in Indiana

James G. Leatherman, M.D. is one of 2,109 internal medicine physician records with a practice address in Indiana. 85% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 13% of them.

  • NPI issued2006 · 13% of these records are older, 54% newer
  • In a Medicare fileYes · 85% of these records are
  • In the CMS Doctors and Clinicians fileYes · 69% of these records are
  • Graduated1982 · median 2005 among the 1,448 with a school on file
  • Record last updated2020 · 43% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Indiana practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

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.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Bassem Adie, M.D.Indianapolis, IN 462541174613889
  2. Jeffrey Couture, M.D.Indianapolis, IN 462541336185115
  3. Katherine Gilkey, MDIndianapolis, IN 462541154431880
  4. Malak Hermina, MD FACPIndianapolis, IN 462541366496119
  5. Angela Johnson, MDIndianapolis, IN 462541346257789
  6. John Laurain, M.D.Indianapolis, IN 462541053410704
  7. Michael Maddox, M.D.Indianapolis, IN 462541821031865
  8. Thomas Marshall, MDIndianapolis, IN 462541932153947

Common questions

What is James G. Leatherman, M.D.'s NPI number?

James G. Leatherman, M.D.'s National Provider Identifier (NPI) is 1215971775, issued on Jun 15, 2006. An NPI identifies a provider in billing; it is not a license.

Where is James G. Leatherman, M.D. located?

The NPPES record lists a practice address at 4880 Century Plaza RD, Indianapolis, IN, 46254. Phone: (317) 216-2800. Providers update this record themselves, so call before visiting.

How can I verify James G. Leatherman, M.D.'s license?

NPPES lists Indiana license number 01032109, 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 James G. Leatherman, M.D. prescribe under Medicare Part D?

In 2024, James G. Leatherman, M.D. had 5,472 Medicare Part D claims for 480 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.