Doctor profile · Federal record

Dr. Dereje Siyum, MD

Hospitalist Physician (CMS: Hospitalist) · Milwaukee, WI

  • NPI 1164981007
  • Accepts Medicare
  • 12 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
945 N 12Th St
Milwaukee, WI 532331305
(414) 219-7427
fax (414) 219-6078
Mailing address
Po Box 735044
Chicago, IL 606735044

Credentials & registration

NPPES · NUCC
NPI registered
March 2019 — 7 yrs on file
Profile last updated
June 11, 2025
Year of graduation
2014 — 12 yrs since
Specialty taxonomy
208M00000X — NUCC code
State license (1)
Wisconsin #74852
Medicaid
WI #100202312

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1164981007. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
547
Distinct HCPCS
5
Medicare allowed
$46,679
HCPCS Description Services Patients Avg allowed
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 259 117 $73
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 91 56 $108
99239 Hospital discharge day management, more than 30 minutes 87 87 $106
99231 Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes 77 11 $46
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 33 33 $153

In context: peer comparison

Among 82 peers in Milwaukee Hospitalist Physician, average services per provider: 91. This provider delivers 6.0× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
219
Patients
167
Total drug cost
$11,416
Drug Type Claims Patients Total cost
Furosemide Generic 24 23 $129
Carvedilol Generic 23 20 $192
Amlodipine Besylate Generic 20 18 $80
Amoxicillin-Clavulanate Potass (Amoxicillin/Potassium Clav) Brand 17 17 $132
Prednisone Generic 17 17 $58
Albuterol Sulfate Hfa (Albuterol Sulfate) Brand 15 11 $349
Eliquis (Apixaban) Brand 15 13 $8,948
Atorvastatin Calcium Generic 14 12 $244
Hydralazine Hcl Generic 14 0 $396
Pantoprazole Sodium Generic 14 13 $156

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Dereje Siyum's medical specialty?
Dr. Dereje Siyum practices Hospitalist Physician in Milwaukee, WI.
Where does Dr. Dereje Siyum practice?
Dr. Dereje Siyum practices at 945 N 12Th St, Milwaukee, WI 532331305. Office phone: 4142197427.
What is Dr. Dereje Siyum's NPI?
Dr. Dereje Siyum's National Provider Identifier (NPI) is 1164981007, issued by NPPES.
Does Dr. Dereje Siyum accept Medicare assignment?
Yes. Dr. Dereje Siyum accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Dereje Siyum commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233); Hospital discharge day management (HCPCS 99239). Source: CMS Medicare Physician & Other Practitioners file.