Tiffany Sierra Gillen, PA

Tiffany Gillen practices at The Gastroenterology Clinic & Endoscopy Center Inc in Youngstown, Ohio.

Tiffany Gillen's NPI, 1326784877, was assigned on May 9, 2022.

Tiffany Gillen's primary practice is The Gastroenterology Clinic & Endoscopy Center Inc, at 1220 Boardman Canfield Rd, Youngstown, OH 44512 in Mahoning County. The practice phone is (330) 399-7215.

Tiffany Gillen's primary practice is The Gastroenterology Clinic & Endoscopy Center Inc in Youngstown, Ohio. The medical group on file is The Warren Gastroenterology Clinic & Endoscopy Center, Inc.

Dmand AI tracks the electronic health record (EHR) system at each site where Tiffany Gillen practices. Vendor and product names are available with a free account.

Physician assistant is Tiffany Gillen's primary specialty in the NPI Registry, under taxonomy code 363A00000X.

CMS counts 386 Medicare patients who saw Tiffany Gillen in 2024. The largest group is 65 to 74, with 185 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 14% are also on Medicaid. Their average risk score is 1.24, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Tiffany Gillen's median patient age at 61, with 58% women.

In 2024, Tiffany Gillen wrote 1,007 Medicare Part D claims for 378 patients. 77% of them were for generic drugs.

Tiffany Gillen accepts Medicare assignment, so Medicare's approved amount is taken as full payment.

CMS Open Payments shows 20 general payments to Tiffany Gillen from 5 drug and device companies in 2025. Food and beverage make up the largest share, 100% of the total. Abbvie Inc. paid the most, $258.