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

Individual provider Internal Medicine Physician · NPI 1578688362

Marisa Siekierka, PA-C is a Physician Assistant in Scranton, Pennsylvania. Qualified in 2003, 23 years ago. Practices with Geisinger Clinic, a 3,413-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Pennsylvania.

Years since qualifying
23
Licensed in
PA
In the registry since
2007
Specialties on file
2
What do these letters mean?
PA-C — Physician Assistant, Certified
A physician assistant who holds current national certification.

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Practice location Address checks out

821 Oak St
Scranton, PA 18508-1260
Phone: (570) 703-0539
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 1789 N Keyser Ave, Scranton, PA 18508 — (570) 969-1904

Specialties & licences

Medical Physician Assistant (primary) Taxonomy 363AM0700X · Licence MA051641 (PA)
Internal Medicine Physician Taxonomy 207R00000X · Licence MA051641 (PA)

Record details

NPI number1578688362
Entity typeIndividual (Type 1)
GenderFemale
Credentials PA-C
Sole proprietorNo
NPI enumeratedMarch 20, 2007
Last updated in NPPESMarch 17, 2025
Certification dateMarch 17, 2025

Medicare enrollment

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

Medicare specialtyPHYSICIAN ASSISTANT
Medical schoolOTHER
Graduated 2003 (23 years in practice)
Group practice Geisinger Clinic — 3413 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

Other providers in Scranton