Doctor profile · Federal record

Dr. Oksana Chien, APRN, CNP

Nurse Practitioner · Chicago, IL

  • NPI 1740846112
  • Accepts Medicare
  • 8 yrs in practice
  • Female
  • Solo practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
675 N Saint Clair St Ste 19-100
Chicago, IL 606115969
(312) 664-3278
fax (312) 695-5774

Credentials & registration

NPPES · NUCC
NPI registered
May 2019 — 7 yrs on file
Profile last updated
October 10, 2024
Year of graduation
2018 — 8 yrs since
Specialty taxonomy
363L00000X — NUCC code
State license (1)
Illinois #209019070

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1740846112. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
99
Distinct HCPCS
4
Medicare allowed
$10,209
HCPCS Description Services Patients Avg allowed
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 46 34 $71
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 21 20 $155
99214 Established patient office or other outpatient visit, 30-39 minutes 17 16 $115
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 15 15 $117

In context: peer comparison

Among 169 peers in Chicago Nurse Practitioner, average services per provider: 102. This provider delivers 1.0× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
29
Patients
11
Total drug cost
$531
Drug Type Claims Patients Total cost
Clopidogrel (Clopidogrel Bisulfate) Brand 16 0 $478
Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) Brand 13 11 $53

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Oksana Chien's medical specialty?
Dr. Oksana Chien practices Nurse Practitioner in Chicago, IL.
Where does Dr. Oksana Chien practice?
Dr. Oksana Chien practices at 675 N Saint Clair St Ste 19-100, Chicago, IL 606115969. Office phone: 3126643278.
What is Dr. Oksana Chien's NPI?
Dr. Oksana Chien's National Provider Identifier (NPI) is 1740846112, issued by NPPES.
Does Dr. Oksana Chien accept Medicare assignment?
Yes. Dr. Oksana Chien accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Oksana Chien commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232); Initial hospital care with moderate level of medical decision making (HCPCS 99223); Established patient office or other outpatient visit (HCPCS 99214). Source: CMS Medicare Physician & Other Practitioners file.