Doctor profile · Federal record

Dr. Michael Warso, M.D.

Surgery Physician (CMS: Surgical Oncology) · Surgical Oncology Physician · Chicago, IL

  • NPI 1679676878
  • Accepts Medicare
  • MIPS 77.1 / 100 · 2023
  • 46 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
1740 W Taylor St
Chicago, IL 606127232
(866) 600-2273
Mailing address
840 S Wood St, 618 Csb, Mc 820
Chicago, IL 606124325

Credentials & registration

NPPES · NUCC
NPI registered
September 2006 — 20 yrs on file
Profile last updated
May 4, 2021
Year of graduation
1980 — 46 yrs since
Specialty taxonomy
208600000X — NUCC code
State licenses (2)
Illinois #036-063987 · Illinois #036063987

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1679676878. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
158
Distinct HCPCS
3
Medicare allowed
$12,211
HCPCS Description Services Patients Avg allowed
99213 Established patient office or other outpatient visit, 20-29 minutes 122 84 $69
99203 New patient office or other outpatient visit, 30-44 minutes 23 23 $87
99204 New patient office or other outpatient visit, 45-59 minutes 13 13 $134

In context: peer comparison

Among 54 peers in this city , average services per provider: 84. This provider delivers 1.9× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$27
Transactions
1
Manufacturers
1
Payer (manufacturer) Industry Txns Amount
Lilly USA, LLC 1 $27.21

By nature of payment

Food and Beverage
$27

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
42
Patients
13
Total drug cost
$590
Drug Type Claims Patients Total cost
Anastrozole Generic 16 0 $325
Tramadol Hcl Generic 15 13 $21
Tamoxifen Citrate Generic 11 0 $244

Frequently asked questions

Auto-generated from federal data
What is Dr. Michael Warso's medical specialty?
Dr. Michael Warso practices Surgery Physician in Chicago, IL.
Where does Dr. Michael Warso practice?
Dr. Michael Warso practices at 1740 W Taylor St, Chicago, IL 606127232. Office phone: 8666002273.
What is Dr. Michael Warso's NPI?
Dr. Michael Warso's National Provider Identifier (NPI) is 1679676878, issued by NPPES.
Does Dr. Michael Warso accept Medicare assignment?
Yes. Dr. Michael Warso accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Michael Warso commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99213); New patient office or other outpatient visit (HCPCS 99203); New patient office or other outpatient visit (HCPCS 99204). Source: CMS Medicare Physician & Other Practitioners file.