Doctor profile · Federal record

Dr. Brett Cassidy, MD

Obstetrics & Gynecology Physician (CMS: Obstetrics/Gynecology) · Yorkville, IL

  • NPI 1649256975
  • Accepts Medicare
  • 28 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
654 W Veterans Parkway, Suite A
Yorkville, IL 60560
(630) 553-3588
fax (630) 553-3525
Mailing address
2934 Old Glory Dr
Yorkville, IL 605604620

Credentials & registration

NPPES · NUCC
NPI registered
December 2005 — 21 yrs on file
Profile last updated
July 8, 2007
Year of graduation
1998 — 28 yrs since
Specialty taxonomy
207V00000X — NUCC code

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1649256975. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
21
Distinct HCPCS
1
Medicare allowed
$1,848
HCPCS Description Services Patients Avg allowed
99213 Established patient office or other outpatient visit, 20-29 minutes 21 17 $88

In context: peer comparison

Among 1 peers in this city , average services per provider: 21. This provider delivers 1.0× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$73
Transactions
3
Manufacturers
2
Payer (manufacturer) Industry Txns Amount
Astellas Pharma US Inc 2 $48.27
PFIZER INC. 1 $24.94

By nature of payment

Food and Beverage
$73

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
27
Patients
0
Total drug cost
$362
Drug Type Claims Patients Total cost
Fluconazole Generic 16 0 $274
Valacyclovir (Valacyclovir Hcl) Brand 11 0 $88

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Brett Cassidy's medical specialty?
Dr. Brett Cassidy practices Obstetrics & Gynecology Physician in Yorkville, IL.
Where does Dr. Brett Cassidy practice?
Dr. Brett Cassidy practices at 654 W Veterans Parkway, Yorkville, IL 60560. Office phone: 6305533588.
What is Dr. Brett Cassidy's NPI?
Dr. Brett Cassidy's National Provider Identifier (NPI) is 1649256975, issued by NPPES.
Does Dr. Brett Cassidy accept Medicare assignment?
Yes. Dr. Brett Cassidy accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Brett Cassidy commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99213). Source: CMS Medicare Physician & Other Practitioners file.