Doctor profile · Federal record

Dr. Ivan Co, MD

Emergency Medicine Physician (CMS: Emergency Medicine) · Critical Care Medicine (Internal Medicine) Physician · Ann Arbor, MI

  • NPI 1023307204
  • Accepts Medicare
  • 15 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
1500 E Medical Center Dr
Ann Arbor, MI 481095000
(734) 936-4000
Mailing address
3621 S State St
Ann Arbor, MI 481081633

Credentials & registration

NPPES · NUCC
NPI registered
March 2011 — 15 yrs on file
Profile last updated
January 27, 2020
Year of graduation
2011 — 15 yrs since
Specialty taxonomy
207P00000X — NUCC code
State license (1)
Michigan #4301106009

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1023307204. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
231
Distinct HCPCS
4
Medicare allowed
$44,512
HCPCS Description Services Patients Avg allowed
99291 Critical care, first 30-74 minutes 154 46 $218
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 30 21 $115
99285 Emergency department visit with high level of medical decision making 27 27 $183
99284 Emergency department visit with moderate level of medical decision making 20 20 $125

In context: peer comparison

Among 75 peers in this city , average services per provider: 70. This provider delivers 3.3× the peer median.

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Ivan Co's medical specialty?
Dr. Ivan Co practices Emergency Medicine Physician in Ann Arbor, MI.
Where does Dr. Ivan Co practice?
Dr. Ivan Co practices at 1500 E Medical Center Dr, Ann Arbor, MI 481095000. Office phone: 7349364000.
What is Dr. Ivan Co's NPI?
Dr. Ivan Co's National Provider Identifier (NPI) is 1023307204, issued by NPPES.
Does Dr. Ivan Co accept Medicare assignment?
Yes. Dr. Ivan Co accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Ivan Co commonly perform?
Top Medicare-reported procedures in 2023: Critical care (HCPCS 99291); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233); Emergency department visit with high level of medical decision making (HCPCS 99285). Source: CMS Medicare Physician & Other Practitioners file.