Doctor profile · Federal record

Dr. Byung Hun Hyun

Hospitalist Physician (CMS: Hospitalist) · Evanston, IL

  • NPI 1194344382
  • Accepts Medicare
  • MIPS 90.4 / 100 · 2023
  • 6 yrs in practice
  • Male
  • Solo practice
  • No sanctions

Practice & contact

Operates at 2 locations .

NPPES Updated May 11, 2026
Primary practice
2650 Ridge Ave
Evanston, IL 602011700
(847) 570-1010
Additional location
1111 E McDowell RD
Phoenix, AZ 850062612
(602) 839-2000

Credentials & registration

NPPES · NUCC
NPI registered
April 2020 — 6 yrs on file
Profile last updated
June 14, 2023
Year of graduation
2020 — 6 yrs since
Specialty taxonomy
208M00000X — NUCC code
State license (1)
Illinois #036055974

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1194344382. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
360
Distinct HCPCS
4
Medicare allowed
$45,085
HCPCS Description Services Patients Avg allowed
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 235 92 $125
99239 Hospital discharge day management, more than 30 minutes 57 57 $120
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 35 24 $83
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 33 33 $182

In context: peer comparison

Among 34 peers in this city , average services per provider: 129. This provider delivers 2.8× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
37
Patients
12
Total drug cost
$425
Drug Type Claims Patients Total cost
Atorvastatin Calcium Generic 19 12 $199
Levothyroxine Sodium Generic 18 0 $226

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Byung Hun Hyun's medical specialty?
Dr. Byung Hun Hyun practices Hospitalist Physician in Evanston, IL.
Where does Dr. Byung Hun Hyun practice?
Dr. Byung Hun Hyun practices at 2650 Ridge Ave, Evanston, IL 602011700. Office phone: 8475701010.
What is Dr. Byung Hun Hyun's NPI?
Dr. Byung Hun Hyun's National Provider Identifier (NPI) is 1194344382, issued by NPPES.
Does Dr. Byung Hun Hyun accept Medicare assignment?
Yes. Dr. Byung Hun Hyun accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Byung Hun Hyun commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233); Hospital discharge day management (HCPCS 99239); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232). Source: CMS Medicare Physician & Other Practitioners file.