Doctor profile · Federal record

Dr. Michael Defrank, M.D.

Emergency Medicine Physician (CMS: Emergency Medicine) · Milwaukee, WI

  • NPI 1841258969
  • Accepts Medicare
  • 30 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
111 E Wisconsin Ave, Suite 2000
Milwaukee, WI 532024815
(414) 290-6720
fax (414) 290-6755

Credentials & registration

NPPES · NUCC
NPI registered
May 2006 — 20 yrs on file
Profile last updated
December 19, 2021
Year of graduation
1996 — 30 yrs since
Specialty taxonomy
207P00000X — NUCC code
State license (1)
Wisconsin #41138-020
Medicaid (2)
MI #104173216 · WI #32579300

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1841258969. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
229
Distinct HCPCS
5
Medicare allowed
$25,927
HCPCS Description Services Patients Avg allowed
99284 Emergency department visit with moderate level of medical decision making 78 75 $114
99285 Emergency department visit with high level of medical decision making 61 60 $166
93010 Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only 45 44 $8
99291 Critical care, first 30-74 minutes 26 25 $202
99283 Emergency department visit with low level of medical decision making 19 19 $68

In context: peer comparison

Among 117 peers in this city , average services per provider: 82. This provider delivers 2.8× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
128
Patients
117
Total drug cost
$875
Drug Type Claims Patients Total cost
Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) Brand 27 27 $141
Prednisone Generic 22 22 $49
Oxycodone-Acetaminophen (Oxycodone Hcl/Acetaminophen) Brand 21 21 $79
Amoxicillin-Clavulanate Potass (Amoxicillin/Potassium Clav) Brand 14 14 $147
Cephalexin Generic 11 0 $126
Doxycycline Monohydrate Generic 11 11 $152
Levofloxacin Generic 11 11 $131
Ondansetron Odt (Ondansetron) Brand 11 11 $51

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Michael Defrank's medical specialty?
Dr. Michael Defrank practices Emergency Medicine Physician in Milwaukee, WI.
Where does Dr. Michael Defrank practice?
Dr. Michael Defrank practices at 111 E Wisconsin Ave, Milwaukee, WI 532024815. Office phone: 4142906720.
What is Dr. Michael Defrank's NPI?
Dr. Michael Defrank's National Provider Identifier (NPI) is 1841258969, issued by NPPES.
Does Dr. Michael Defrank accept Medicare assignment?
Yes. Dr. Michael Defrank accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Michael Defrank commonly perform?
Top Medicare-reported procedures in 2023: Emergency department visit with moderate level of medical decision making (HCPCS 99284); Emergency department visit with high level of medical decision making (HCPCS 99285); Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (HCPCS 93010). Source: CMS Medicare Physician & Other Practitioners file.