Doctor profile · Federal record
Dr. Itamar Gnatt, M.D
Undersea and Hyperbaric Medicine (Preventive Medicine) Physician (CMS: Undersea and Hyperbaric Medicine) · Undersea and Hyperbaric Medicine (Emergency Medicine) Physician · Family Medicine Physician · Undersea and Hyperbaric Medicine (Preventive Medicine) Physician · Milwaukee, WI
- NPI 1447781992
- Accepts Medicare
- 9 yrs in practice
- Licensed in 2 states
- Male
- Solo practice
- No sanctions
Practice & contact
Operates at 2 locations .
- Primary practice
-
945 N 12Th St
Milwaukee, WI 532331305
(414) 219-2000 - Additional location
-
6070 S Fort Apache RD Ste 100
Las Vegas, NV 891485615
(702) 803-5534 - Mailing address
-
Po Box 735044
Chicago, IL 606735044
Credentials & registration
- NPI registered
- March 2017 — 9 yrs on file
- Profile last updated
- October 3, 2025
- Year of graduation
- 2017 — 9 yrs since
- Specialty taxonomy
- 2083P0011X — NUCC code
- State licenses (3)
- Wisconsin #70439 · Wisconsin #70439-20 · Nevada #26680
- Medicaid
- WI #10005229
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1447781992. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
419
Distinct HCPCS
6
Medicare allowed
$28,593
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 165 | 69 | $59 | |
99183 |
Management of oxygen chamber therapy | 121 | 47 | $95 | |
97597 |
Removal of tissue from wound, 20.0 sq cm or less | 53 | 28 | $31 | |
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 35 | 32 | $71 | |
99221 |
Initial hospital care with straightforward or low level of medical decision making, per day, if using time, at least 40 minutes | 29 | 28 | $70 | |
99203 |
New patient office or other outpatient visit, 30-44 minutes | 16 | 16 | $75 |
In context: peer comparison
Among 5 peers in this city , average services per provider: 60. This provider delivers 7.0× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
50
Patients
29
Total drug cost
$682
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Doxycycline Hyclate | Generic | 39 | 29 | $563 |
| Cephalexin | Generic | 11 | 0 | $119 |
Hospital affiliations
Frequently asked questions
What is Dr. Itamar Gnatt's medical specialty?
Dr. Itamar Gnatt practices Undersea and Hyperbaric Medicine (Preventive Medicine) Physician in Milwaukee, WI.
Where does Dr. Itamar Gnatt practice?
Dr. Itamar Gnatt practices at 945 N 12Th St, Milwaukee, WI 532331305. Office phone: 4142192000.
What is Dr. Itamar Gnatt's NPI?
Dr. Itamar Gnatt's National Provider Identifier (NPI) is 1447781992, issued by NPPES.
Does Dr. Itamar Gnatt accept Medicare assignment?
Yes. Dr. Itamar Gnatt accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Itamar Gnatt commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99213); Management of oxygen chamber therapy (HCPCS 99183); Removal of tissue from wound, 20.0 sq cm or less (HCPCS 97597). Source: CMS Medicare Physician & Other Practitioners file.