Doctor profile · Federal record

Dr. Siu Yung Choy, D.O.

Internal Medicine Physician (CMS: Internal Medicine) · Park Ridge, IL

  • NPI 1679951594
  • Accepts Medicare
  • 11 yrs in practice
  • Female
  • Solo practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
1775 Dempster St Rm E592B
Park Ridge, IL 600681143
(847) 723-8080
fax (847) 723-4378
Mailing address
29373 Network Pl
Chicago, IL 606731293

Credentials & registration

NPPES · NUCC
NPI registered
May 2015 — 11 yrs on file
Profile last updated
June 6, 2022
Year of graduation
2015 — 11 yrs since
Specialty taxonomy
207R00000X — NUCC code
State license (1)
Illinois #036147165

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1679951594. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
487
Distinct HCPCS
4
Medicare allowed
$79,684
HCPCS Description Services Patients Avg allowed
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 352 339 $180
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 94 93 $136
99221 Initial hospital care with straightforward or low level of medical decision making, per day, if using time, at least 40 minutes 24 24 $89
99497 Advance care planning, first 30 minutes 17 17 $79

In context: peer comparison

Among 31 peers in Park Ridge Internal Medicine Physician, average services per provider: 123. This provider delivers 4.0× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$18
Transactions
1
Manufacturers
1
Payer (manufacturer) Industry Txns Amount
Boston Scientific Corporation 1 $17.65

By nature of payment

Food and Beverage
$18

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Siu Yung Choy's medical specialty?
Dr. Siu Yung Choy practices Internal Medicine Physician in Park Ridge, IL.
Where does Dr. Siu Yung Choy practice?
Dr. Siu Yung Choy practices at 1775 Dempster St Rm E592B, Park Ridge, IL 600681143. Office phone: 8477238080.
What is Dr. Siu Yung Choy's NPI?
Dr. Siu Yung Choy's National Provider Identifier (NPI) is 1679951594, issued by NPPES.
Does Dr. Siu Yung Choy accept Medicare assignment?
Yes. Dr. Siu Yung Choy accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Siu Yung Choy commonly perform?
Top Medicare-reported procedures in 2023: Initial hospital care with moderate level of medical decision making (HCPCS 99223); Initial hospital care with straightforward or low-level medical decision making (HCPCS 99222); Initial hospital care with straightforward or low level of medical decision making (HCPCS 99221). Source: CMS Medicare Physician & Other Practitioners file.