Doctor profile · Federal record

Dr. Jonathan Marsh, MD

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

  • NPI 1689657165
  • Accepts Medicare
  • 24 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
8330 Naab RD Ste 340
Indianapolis, IN 462602279
(317) 415-6230

Credentials & registration

NPPES · NUCC
NPI registered
November 2005 — 21 yrs on file
Profile last updated
January 5, 2024
Year of graduation
2002 — 24 yrs since
Specialty taxonomy
207R00000X — NUCC code
State license (1)
Indiana #01060873A
Medicaid
IN #200523500

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1689657165. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
1,932
Distinct HCPCS
10
Medicare allowed
$179,659
HCPCS Description Services Patients Avg allowed
99214 Established patient office or other outpatient visit, 30-39 minutes 657 425 $119
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit 345 345 $122
99497 Advance care planning, first 30 minutes 334 334 $78
36415 Insertion of needle into vein for collection of blood sample 306 255 $8
99215 Established patient office or other outpatient visit, 40-54 minutes 81 75 $169
G0008 Administration of influenza virus vaccine 36 36 $22
90662 Influenza vaccine split virus, preservative free 33 33 $65
99213 Established patient office or other outpatient visit, 20-29 minutes 25 25 $85
G0009 Administration of pneumococcal vaccine 23 23 $25
G0438 Annual wellness visit; includes a personalized prevention plan of service (pps), initial visit 22 22 $150

In context: peer comparison

Among 195 peers in Indianapolis Internal Medicine Physician, average services per provider: 101. This provider delivers 19× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
4,732
Patients
1,310
Total drug cost
$273,787
Drug Type Claims Patients Total cost
Rosuvastatin Calcium Generic 634 181 $10,812
Atorvastatin Calcium Generic 573 163 $6,366
Levothyroxine Sodium Generic 519 133 $8,515
Amlodipine Besylate Generic 367 105 $2,838
Lisinopril Generic 318 90 $2,464
Pantoprazole Sodium Generic 314 89 $4,902
Tamsulosin Hcl Generic 267 74 $6,884
Omeprazole Generic 262 68 $3,503
Losartan Potassium Generic 240 71 $3,740
Simvastatin Generic 240 69 $2,773

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Jonathan Marsh's medical specialty?
Dr. Jonathan Marsh practices Internal Medicine Physician in Indianapolis, IN.
Where does Dr. Jonathan Marsh practice?
Dr. Jonathan Marsh practices at 8330 Naab RD Ste 340, Indianapolis, IN 462602279. Office phone: 3174156230.
What is Dr. Jonathan Marsh's NPI?
Dr. Jonathan Marsh's National Provider Identifier (NPI) is 1689657165, issued by NPPES.
Does Dr. Jonathan Marsh accept Medicare assignment?
Yes. Dr. Jonathan Marsh accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Jonathan Marsh commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (HCPCS G0439); Advance care planning (HCPCS 99497). Source: CMS Medicare Physician & Other Practitioners file.