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

MS. Joanna Sawyer Mazer, PAC

Individual provider Physician Assistant · NPI 1821276908

MS. Joanna Sawyer Mazer, PAC is a Physician Assistant in Coatesville, Pennsylvania. Qualified in 2001, 25 years ago. Practices with Jefferson University Physicians, a 1,554-clinician group and accepts Medicare assignment. Licensed in Pennsylvania.

Years since qualifying
25
Licensed in
PA
In the registry since
2008
What do these letters mean?
PAC — Physician Assistant, Certified
A physician assistant holding current national certification; usually written PA-C.

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Practice location Address checks out

201 Reeceville Rd
Coatesville, PA 19320-1542
Phone: (610) 383-8434
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Physician Assistant (primary) Taxonomy 363A00000X · Licence MA050871 (PA)

Record details

NPI number1821276908
Entity typeIndividual (Type 1)
GenderFemale
Credentials PAC
Sole proprietorNo
NPI enumeratedJanuary 31, 2008
Last updated in NPPESSeptember 10, 2009

Medicare enrollment

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

Medicare specialtyPHYSICIAN ASSISTANT
Medical schoolOTHER
Graduated 2001 (25 years in practice)
Group practice Jefferson University Physicians — 1554 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

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