Nathaniel Stewart, MD
NPI 1063773422 · Family Medicine Physician · Granger, IN
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Nathaniel Stewart, MD is a Family Medicine Physician provider in Granger, IN (NPI 1063773422).
Provider details
- NPI number
- 1063773422
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 01073332A (IN)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
14 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
3 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
2,466 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 586 | $84 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 428 | $118 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 396 | $9 |
| Hemoglobin A1c Level83036 | 248 | $9 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 225 | $120 |
| Office Or Other Outpatient Visit for the Evaluation and Management of Established Patient That May Not Require Presence of Healthcare Professional99211 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 168 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 1,190 | 326 |
| Amlodipine Besylate | 670 | 183 |
| Lisinopril | 668 | 183 |
| Levothyroxine Sodium | 662 | 160 |
| Losartan Potassium | 489 | 130 |
| Hydrochlorothiazide | 385 | 112 |
| Rosuvastatin Calcium |
Practice location
Mailing address
Additional practice locations (2)
- 1949 Hospital DrMartinsville, IN 46151-1861Phone: (765) 342-8383Fax: (765) 349-8413
- 1122 S Ironwood DrSouth Bend, IN 46615Phone: (574) 335-8399Fax: (574) 335-0786
Registry dates
- Enumerated
- 2012-06-01
- Last updated
- 2024-06-25
- Certified
- 2024-06-25
Frequently asked questions
- What is Nathaniel Stewart's NPI number?
- Nathaniel Stewart's National Provider Identifier (NPI) is 1063773422, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Nathaniel Stewart's specialty?
- Nathaniel Stewart is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Nathaniel Stewart located?
- Nathaniel Stewart's practice location on file with NPPES is 12563 State Rd 23, Granger, IN 46530-9226.
- What is Nathaniel Stewart's phone number?
- The practice phone number listed in the NPPES registry for Nathaniel Stewart is (574) 335-8300.
- Does Nathaniel Stewart accept Medicare?
- Nathaniel Stewart is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Nathaniel Stewart's NPI active?
- Yes — Nathaniel Stewart's NPI (1063773422) is active in the NPPES registry as of the last update on 2024-06-25.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.