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

Aaron Grinstein, PA

Individual provider Physician Assistant · NPI 1457762106

Aaron Grinstein, PA is a Physician Assistant in Easthampton, Massachusetts. Works from 4 locations. Licensed in Hawaii and Massachusetts.

Licensed in
HI, MA
In the registry since
2014
Specialties on file
3
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

238 Northampton St
Easthampton, MA 01027-1046
Phone: (413) 529-9300
Fax: (866) 644-0870
Show map & directions

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

Additional practice locations (3)

  • 31 Hall Dr, Amherst, MA 01002-2751 — (413) 256-8561
  • 70 Main St, Florence, MA 01062 — (413) 586-8400
  • 329 Conway St, Greenfield, MA 01301-1521 — (413) 774-6301

Specialties & licences

Physician Assistant (primary) Taxonomy 363A00000X · Licence PA4966 (MA)
Physician Assistant Taxonomy 363A00000X · Licence AMD-875 (HI)
Medical Physician Assistant Taxonomy 363AM0700X · Licence PA4966 (MA)

Record details

NPI number1457762106
Entity typeIndividual (Type 1)
GenderMale
Credentials PA
Sole proprietorNo
NPI enumeratedMay 15, 2014
Last updated in NPPESMarch 10, 2025
Certification dateFebruary 25, 2025
Mailing address238 Northampton St, Easthampton, MA 01027-1046

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