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

Katherine Siobhan Rivest, PA-C

Individual provider Medical Physician Assistant · NPI 1164766226

Katherine Siobhan Rivest, PA-C is a Physician Assistant in Easthampton, Massachusetts. Qualified in 2012, 14 years ago. Practices with Western Mass Physician Associates Inc, a 71-clinician group and accepts Medicare assignment. Licensed in Massachusetts.

Years since qualifying
14
Licensed in
MA
In the registry since
2012
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

2 Mechanic St Ste A
Easthampton, MA 01027-1562
Phone: (413) 529-9282
Fax: (413) 527-7526
Show map & directions

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

Specialties & licences

Medical Physician Assistant (primary) Taxonomy 363AM0700X · Licence PA4575 (MA)

Record details

NPI number1164766226
Entity typeIndividual (Type 1)
GenderFemale
Credentials PA-C
Sole proprietorNo
NPI enumeratedNovember 15, 2012
Last updated in NPPESJanuary 12, 2016

Medicare enrollment

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

Medicare specialtyPHYSICIAN ASSISTANT
Medical schoolOTHER
Graduated 2012 (14 years in practice)
Group practice Western Mass Physician Associates Inc — 71 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

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