Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Tiffany Sierra Gillen, PA

Individual provider Physician Assistant · NPI 1326784877

Tiffany Sierra Gillen, PA is a Physician Assistant in Struthers, Ohio. Qualified in 2022, 4 years ago. Practices with The Gastroenterology Clinic and Endoscopy Center Inc, a 36-clinician group and accepts Medicare assignment.

Years since qualifying
4
In the registry since
2022
What do these letters mean?
PA — Physician Assistant
A licensed clinician who examines, diagnoses and treats under a physician's supervision.

See every abbreviation used in this directory →

Practice location Address checks out

495 5th St
Struthers, OH 44471-1843
Phone: (330) 787-5166
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Physician Assistant (primary) Taxonomy 363A00000X

Record details

NPI number1326784877
Entity typeIndividual (Type 1)
GenderFemale
Credentials PA
Sole proprietorYes
NPI enumeratedMay 9, 2022
Last updated in NPPESMay 9, 2022
Certification dateMay 9, 2022

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyPHYSICIAN ASSISTANT
Medical schoolOTHER
Graduated 2022 (4 years in practice)
Group practice The Gastroenterology Clinic And Endoscopy Center Inc — 36 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations4 on file with Medicare