Nathaniel Robert Stewart, MD
Family Medicine Physician · Granger, IN
Nathaniel Robert Stewart, MD is a family medicine physician with a practice address in Granger, Indiana, and NPI 1063773422, issued on Jun 1, 2012. Check the license (Indiana 01073332A, as entered in NPPES) on the Medical Licensing Board of Indiana; the Medicare figures below come from public CMS files.
- Name
- Nathaniel Robert Stewart
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 01073332A IN
Self-reported in NPPES; status is on the state search - Practice location
- 12563 State RD 23, Granger, IN 46530
- Phone
- (574) 335-8300
- Enumerated
- Jun 1, 2012
- Record last updated
- Jun 25, 2024
- Fax
- (574) 335-0775
- Medicaid ID
- 201087310 IN
- Medicare enrollment
- Enrolled (PECOS I20141021002161); accepts Medicare assignment
- Medical or professional school
- Indiana University School Of Medicine, 2012
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 3,506 in Indiana → Look up another NPI →
Also registered at 12563 State RD 23
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Leah Napolitano, M.D.Family Medicine Physician1023116514
Verify Nathaniel Robert Stewart in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Licensing Board of Indiana
Search for license 01073332ACheck the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
3.9 times the Medicare Part D claims of the average family medicine physician in 2024
13,851 Medicare Part D claims for 898 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 14% of claims. 89 claims were for opioids.
Most prescribed
- Atorvastatin Calcium1,190 claims
- Amlodipine Besylate670 claims
- Lisinopril668 claims
- Levothyroxine Sodium662 claims
- Losartan Potassium489 claims
- Hydrochlorothiazide385 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 one group practice
- Saint Joseph Regional Medical Center IncSouth Bend, IN
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Nathaniel Robert Stewart among 3,506 family medicine physician records in Indiana
Nathaniel Robert Stewart, MD is one of 3,506 family medicine 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 2012, is newer than 70% of them.
- NPI issued2012 · 70% of these records are older, 27% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated2012 · median 2005 among the 2,196 with a school on file
- Record last updated2024 · 48% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Indiana practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
39 family medicine physician records list a practice address in Granger
They are 39 of the 395 NPPES records with a practice address in Granger, and 3,506 family medicine physician records in Indiana.
All 3,506 in Indiana → Every provider in Granger → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Brian Carter, MDGranger, IN 465301366432429
- Joseph Cerbin, MDGranger, IN 465301134119225
- Matthew Christ, MDGranger, IN 465301437149952
- Scott Eshowsky, M.D.Granger, IN 465301285622373
- David Grellmann, M.D.Granger, IN 465301205824570
- Shelly Harkins, MDGranger, IN 465301922093871
- Suping Hsieh, MDGranger, IN 465301972593408
- Carol Mann, MDGranger, IN 465301487644175
Common questions
What is Nathaniel Robert Stewart, MD's NPI number?
Nathaniel Robert Stewart, MD's National Provider Identifier (NPI) is 1063773422, issued on Jun 1, 2012. An NPI identifies a provider in billing; it is not a license.
Where is Nathaniel Robert Stewart, MD located?
The NPPES record lists a practice address at 12563 State RD 23, Granger, IN, 46530. Phone: (574) 335-8300. Providers update this record themselves, so call before visiting.
How can I verify Nathaniel Robert Stewart, MD's license?
NPPES lists Indiana license number 01073332A, 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 Nathaniel Robert Stewart, MD prescribe under Medicare Part D?
In 2024, Nathaniel Robert Stewart, MD had 13,851 Medicare Part D claims for 898 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.