Doctor profile · Federal record
Dr. Gregory Zahn, MD
Emergency Medicine Physician (CMS: Emergency Medicine) · Emergency Medicine Physician · Indianapolis, IN
- NPI 1710278635
- Accepts Medicare
- 15 yrs in practice
- Licensed in 2 states
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
1701 N Senate Blvd, Rm Dg412
Indianapolis, IN 462021239
(317) 962-3886
fax (317) 963-5492 - Mailing address
-
250 N Shadeland Ave
Indianapolis, IN 462194959
Credentials & registration
- NPI registered
- April 2011 — 15 yrs on file
- Profile last updated
- March 10, 2021
- Year of graduation
- 2011 — 15 yrs since
- Specialty taxonomy
- 207P00000X — NUCC code
- State licenses (2)
- Indiana #01074017A · North Carolina #173804
- Medicaid
- IN #201225570
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1710278635. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
352
Distinct HCPCS
4
Medicare allowed
$50,827
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99285 |
Emergency department visit with high level of medical decision making | 193 | 190 | $163 | |
99284 |
Emergency department visit with moderate level of medical decision making | 85 | 81 | $113 | |
99283 |
Emergency department visit with low level of medical decision making | 37 | 34 | $67 | |
99291 |
Critical care, first 30-74 minutes | 37 | 37 | $199 |
In context: peer comparison
Among 140 peers in Indianapolis Emergency Medicine Physician, average services per provider: 87. This provider delivers 4.0× the peer median.Hospital affiliations
Frequently asked questions
What is Dr. Gregory Zahn's medical specialty?
Dr. Gregory Zahn practices Emergency Medicine Physician in Indianapolis, IN.
Where does Dr. Gregory Zahn practice?
Dr. Gregory Zahn practices at 1701 N Senate Blvd, Indianapolis, IN 462021239. Office phone: 3179623886.
What is Dr. Gregory Zahn's NPI?
Dr. Gregory Zahn's National Provider Identifier (NPI) is 1710278635, issued by NPPES.
Does Dr. Gregory Zahn accept Medicare assignment?
Yes. Dr. Gregory Zahn accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Gregory Zahn commonly perform?
Top Medicare-reported procedures in 2023: Emergency department visit with high level of medical decision making (HCPCS 99285); Emergency department visit with moderate level of medical decision making (HCPCS 99284); Emergency department visit with low level of medical decision making (HCPCS 99283). Source: CMS Medicare Physician & Other Practitioners file.