Doctor profile · Federal record
Dr. John Gatz, MD
Emergency Medicine Physician (CMS: Emergency Medicine) · Student in an Organized Health Care Education/Training Program · Baltimore, MD
- NPI 1588903330
- Accepts Medicare
- 11 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
Operates at 2 locations .
- Primary practice
-
600 N Wolfe St, The Johns Hopkins Hospital
Baltimore, MD 21287
(410) 955-5000 - Additional location
-
22 S Greene St
Baltimore, MD 212011544
(410) 328-9595 - Mailing address
-
8 N Wolfe St
Baltimore, MD 212311620
Credentials & registration
- NPI registered
- February 2013 — 13 yrs on file
- Profile last updated
- July 23, 2018
- Year of graduation
- 2015 — 11 yrs since
- Specialty taxonomy
- 207P00000X — NUCC code
- State license (1)
- Maryland #D0085496
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1588903330. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
405
Distinct HCPCS
4
Medicare allowed
$38,825
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
93010 |
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only | 203 | 156 | $8 | |
99285 |
Emergency department visit with high level of medical decision making | 101 | 101 | $184 | |
99291 |
Critical care, first 30-74 minutes | 61 | 58 | $223 | |
99284 |
Emergency department visit with moderate level of medical decision making | 40 | 39 | $125 |
In context: peer comparison
Among 176 peers in this city , average services per provider: 92. This provider delivers 4.4× the peer median.Frequently asked questions
What is Dr. John Gatz's medical specialty?
Dr. John Gatz practices Emergency Medicine Physician in Baltimore, MD.
Where does Dr. John Gatz practice?
Dr. John Gatz practices at 600 N Wolfe St, Baltimore, MD 21287. Office phone: 4109555000.
What is Dr. John Gatz's NPI?
Dr. John Gatz's National Provider Identifier (NPI) is 1588903330, issued by NPPES.
Does Dr. John Gatz accept Medicare assignment?
Yes. Dr. John Gatz accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. John Gatz commonly perform?
Top Medicare-reported procedures in 2023: Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (HCPCS 93010); Emergency department visit with high level of medical decision making (HCPCS 99285); Critical care (HCPCS 99291). Source: CMS Medicare Physician & Other Practitioners file.