Doctor profile · Federal record

Dr. Joseph Guan, MD, MPH

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

  • NPI 1154986404
  • Accepts Medicare
  • 5 yrs in practice
  • Male
  • Solo practice
  • No sanctions

Practice & contact

Operates at 3 locations .

NPPES Updated May 11, 2026
Primary practice
3700 W 203Rd St Ste 301
Olympia Fields, IL 604611182
(708) 679-2850
fax (708) 503-3811
Additional location
1950 W Polk St Ste 5210
Chicago, IL 606123723
(312) 864-4462
Additional location
600 S Paulina St
Chicago, IL 606123806
(312) 942-7100
Mailing address
35318 Eagle Way
Chicago, IL 606781353

Credentials & registration

NPPES · NUCC
NPI registered
May 2019 — 7 yrs on file
Profile last updated
September 23, 2024
Year of graduation
2021 — 5 yrs since
Specialty taxonomy
207R00000X — NUCC code
State licenses (2)
Illinois #036168139 · Illinois #125-077739

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1154986404. Last verified May 11, 2026.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$32
Transactions
2
Manufacturers
2
Payer (manufacturer) Industry Txns Amount
Exact Sciences Corporation 1 $18.54
Phathom Pharmaceuticals, Inc. 1 $13.35

By nature of payment

Food and Beverage
$32

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
43
Patients
23
Total drug cost
$643
Drug Type Claims Patients Total cost
Nifedipine Er (Nifedipine) Brand 17 12 $516
Atorvastatin Calcium Generic 15 11 $68
Carvedilol Generic 11 0 $59

Frequently asked questions

Auto-generated from federal data
What is Dr. Joseph Guan's medical specialty?
Dr. Joseph Guan practices Internal Medicine Physician in Olympia Fields, IL.
Where does Dr. Joseph Guan practice?
Dr. Joseph Guan practices at 3700 W 203Rd St Ste 301, Olympia Fields, IL 604611182. Office phone: 7086792850.
What is Dr. Joseph Guan's NPI?
Dr. Joseph Guan's National Provider Identifier (NPI) is 1154986404, issued by NPPES.
Does Dr. Joseph Guan accept Medicare assignment?
Yes. Dr. Joseph Guan accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.