Doctor profile · Federal record
Dr. Zachary Kaczmarek, M.D.
Internal Medicine Physician (CMS: Hospitalist) · Hospitalist Physician · Milwaukee, WI
- NPI 1740713940
- Accepts Medicare
- MIPS 80.9 / 100 · 2023
- 9 yrs in practice
- Male
- Solo practice
- No sanctions
Practice & contact
- Primary practice
-
8701 W Watertown Plank RD
Milwaukee, WI 532263548
(414) 955-4575 - Mailing address
-
8701 Watertown Plank RD
Milwaukee, WI 532263548
Credentials & registration
- NPI registered
- April 2017 — 9 yrs on file
- Profile last updated
- September 26, 2025
- Year of graduation
- 2017 — 9 yrs since
- Specialty taxonomy
- 207R00000X — NUCC code
- State license (1)
- Wisconsin #71493-20
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1740713940. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
400
Distinct HCPCS
5
Medicare allowed
$36,327
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 191 | 94 | $76 | |
99239 |
Hospital discharge day management, more than 30 minutes | 72 | 69 | $109 | |
99231 |
Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes | 68 | 38 | $47 | |
99223 |
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 57 | 57 | $166 | |
99233 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 12 | 11 | $114 |
In context: peer comparison
Among 96 peers in this city , average services per provider: 115. This provider delivers 3.5× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
28
Patients
27
Total drug cost
$357
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Cefdinir | Generic | 14 | 14 | $215 |
| Pantoprazole Sodium | Generic | 14 | 13 | $142 |
Hospital affiliations
Frequently asked questions
What is Dr. Zachary Kaczmarek's medical specialty?
Dr. Zachary Kaczmarek practices Internal Medicine Physician in Milwaukee, WI.
Where does Dr. Zachary Kaczmarek practice?
Dr. Zachary Kaczmarek practices at 8701 W Watertown Plank RD, Milwaukee, WI 532263548. Office phone: 4149554575.
What is Dr. Zachary Kaczmarek's NPI?
Dr. Zachary Kaczmarek's National Provider Identifier (NPI) is 1740713940, issued by NPPES.
Does Dr. Zachary Kaczmarek accept Medicare assignment?
Yes. Dr. Zachary Kaczmarek accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Zachary Kaczmarek commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232); Hospital discharge day management (HCPCS 99239); Subsequent hospital care with straightforward or low level of medical decision making (HCPCS 99231). Source: CMS Medicare Physician & Other Practitioners file.