Doctor profile · Federal record

Dr. Thomas Marshall, MD

Internal Medicine Physician (CMS: Internal Medicine) · Indianapolis, IN

  • NPI 1932153947
  • Accepts Medicare
  • 44 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
6820 Parkdale Pl, Ste 100
Indianapolis, IN 462546601
(317) 297-7773
fax (317) 297-3619
Mailing address
250 N Shadeland Ave, Ste 130 Provider Enrollment
Indianapolis, IN 462194959

Credentials & registration

NPPES · NUCC
NPI registered
May 2006 — 20 yrs on file
Profile last updated
January 14, 2021
Year of graduation
1982 — 44 yrs since
Specialty taxonomy
207R00000X — NUCC code
State license (1)
Indiana #01032356A
Medicaid
IN #200040630

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1932153947. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
475
Distinct HCPCS
10
Medicare allowed
$33,109
HCPCS Description Services Patients Avg allowed
99213 Established patient office or other outpatient visit, 20-29 minutes 105 72 $84
99214 Established patient office or other outpatient visit, 30-39 minutes 71 48 $119
99497 Advance care planning, first 30 minutes 66 66 $77
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit 58 58 $120
G0444 Annual depression screening, 5 to 15 minutes 53 53 $17
83036 Hemoglobin a1c level 49 28 $10
90662 Influenza vaccine split virus, preservative free 23 23 $72
G0008 Administration of influenza virus vaccine 23 23 $29
81002 Urinalysis, manual test 15 13 $3
81003 Automated urinalysis test 12 12 $2

In context: peer comparison

Among 195 peers in Indianapolis Internal Medicine Physician, average services per provider: 101. This provider delivers 4.7× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$133
Transactions
2
Manufacturers
1
Payer (manufacturer) Industry Txns Amount
Lilly USA, LLC 2 $132.78

By nature of payment

Food and Beverage
$133

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
2,107
Patients
583
Total drug cost
$187,671
Drug Type Claims Patients Total cost
Atorvastatin Calcium Generic 446 122 $7,831
Amlodipine Besylate Generic 230 74 $1,207
Omeprazole Generic 195 56 $3,003
Rosuvastatin Calcium Generic 139 42 $7,980
Levothyroxine Sodium Generic 126 37 $1,786
Lisinopril Generic 126 42 $1,018
Metformin Hcl Generic 114 31 $1,127
Amlodipine Besylate-Benazepril (Amlodipine Besylate/Benazepril) Brand 113 25 $3,077
Gabapentin Generic 101 29 $1,912
Trulicity (Dulaglutide) Brand 97 14 $148,896

Frequently asked questions

Auto-generated from federal data
What is Dr. Thomas Marshall's medical specialty?
Dr. Thomas Marshall practices Internal Medicine Physician in Indianapolis, IN.
Where does Dr. Thomas Marshall practice?
Dr. Thomas Marshall practices at 6820 Parkdale Pl, Indianapolis, IN 462546601. Office phone: 3172977773.
What is Dr. Thomas Marshall's NPI?
Dr. Thomas Marshall's National Provider Identifier (NPI) is 1932153947, issued by NPPES.
Does Dr. Thomas Marshall accept Medicare assignment?
Yes. Dr. Thomas Marshall accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Thomas Marshall commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99213); Established patient office or other outpatient visit (HCPCS 99214); Advance care planning (HCPCS 99497). Source: CMS Medicare Physician & Other Practitioners file.