Thomas Marshall, MD
NPI 1932153947 · Internal Medicine Physician · Indianapolis, IN
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Thomas Marshall, MD is a Internal Medicine Physician provider in Indianapolis, IN (NPI 1932153947).
Provider details
- NPI number
- 1932153947
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 01032356A (IN)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
479 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
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 .
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 | 102 | $84 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 82 | $118 |
| Advance Care Planning, First 30 Minutes99497 | 61 | $76 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 57 | $120 |
| Hemoglobin A1c Level83036 | 56 | $10 |
| Annual Depression Screening, 5 to 15 MinutesG0444 | 54 | $17 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 97 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 447 | 123 |
| Amlodipine Besylate | 256 | 81 |
| Omeprazole | 204 | 63 |
| Rosuvastatin Calcium | 192 | 51 |
| Gabapentin | 143 | 36 |
| Levothyroxine Sodium | 137 | 35 |
| Amlodipine Besylate/Benazepril |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$133 across 2 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-05-22
- Last updated
- 2021-01-14
- Certified
- 2021-01-14
Frequently asked questions
- What is Thomas Marshall's NPI number?
- Thomas Marshall's National Provider Identifier (NPI) is 1932153947, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Thomas Marshall's specialty?
- Thomas Marshall is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Thomas Marshall located?
- Thomas Marshall's practice location on file with NPPES is 6820 Parkdale Pl, Indianapolis, IN 46254-6601.
- What is Thomas Marshall's phone number?
- The practice phone number listed in the NPPES registry for Thomas Marshall is (317) 297-7773.
- Does Thomas Marshall accept Medicare?
- Thomas Marshall is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Thomas Marshall's NPI active?
- Yes — Thomas Marshall's NPI (1932153947) is active in the NPPES registry as of the last update on 2021-01-14.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.