Doctor profile · Federal record

Dr. Brett Hapeman, DO

Emergency Medicine Physician (CMS: Emergency Medicine) · Emergency Medicine Physician · Emergency Medicine Physician · Olympia Fields, IL

  • NPI 1811316334
  • Accepts Medicare
  • 12 yrs in practice
  • Licensed in 3 states
  • Male
  • Solo practice
  • No sanctions

Practice & contact

Operates at 3 locations .

NPPES Updated May 11, 2026
Primary practice
20201 S Crawford, Attn: Postdoctoral Education
Olympia Fields, IL 60461
(708) 747-4000
Additional location
4646 N Marine Dr
Chicago, IL 606405759
(773) 878-8700
Additional location
5145 N California Ave
Chicago, IL 606253661
(773) 878-8200
Mailing address
739 N Wood St
Chicago, IL 606225603

Credentials & registration

NPPES · NUCC
NPI registered
April 2014 — 12 yrs on file
Profile last updated
August 3, 2023
Year of graduation
2014 — 12 yrs since
Specialty taxonomy
207P00000X — NUCC code
State licenses (3)
Illinois #036-143883 · Arizona #010251 · Wisconsin #68385

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1811316334. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
395
Distinct HCPCS
4
Medicare allowed
$61,429
HCPCS Description Services Patients Avg allowed
99285 Emergency department visit with high level of medical decision making 220 214 $179
99284 Emergency department visit with moderate level of medical decision making 143 142 $124
99283 Emergency department visit with low level of medical decision making 18 18 $73
99291 Critical care, first 30-74 minutes 14 14 $220

In context: peer comparison

Among 22 peers in Olympia Fields Emergency Medicine Physician, average services per provider: 105. This provider delivers 3.8× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
41
Patients
41
Total drug cost
$248
Drug Type Claims Patients Total cost
Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) Brand 21 21 $88
Cephalexin Generic 20 20 $160

Frequently asked questions

Auto-generated from federal data
What is Dr. Brett Hapeman's medical specialty?
Dr. Brett Hapeman practices Emergency Medicine Physician in Olympia Fields, IL.
Where does Dr. Brett Hapeman practice?
Dr. Brett Hapeman practices at 20201 S Crawford, Olympia Fields, IL 60461. Office phone: 7087474000.
What is Dr. Brett Hapeman's NPI?
Dr. Brett Hapeman's National Provider Identifier (NPI) is 1811316334, issued by NPPES.
Does Dr. Brett Hapeman accept Medicare assignment?
Yes. Dr. Brett Hapeman accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Brett Hapeman commonly perform?
Top Medicare-reported procedures in 2023: Emergency department visit with high level of medical decision making (HCPCS 99285); Emergency department visit with moderate level of medical decision making (HCPCS 99284); Emergency department visit with low level of medical decision making (HCPCS 99283). Source: CMS Medicare Physician & Other Practitioners file.