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

Abby Hornstein, MD

Individual provider Blood Banking & Transfusion Medicine Physician · NPI 1427048628

Abby Hornstein, MD is a Pathology in Gardner, Massachusetts. Graduated from Perelman School of Med at the University of Pennsylvania in 1990, 36 years ago. Practices with University Pathologists, LLC, a 20-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Massachusetts and Rhode Island.

Years since qualifying
36
Trained at
Perelman School of Med at the University of Pennsylvania
Licensed in
MA, RI
In the registry since
2005
Specialties on file
4
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

242 Green St
Gardner, MA 01440-1336
Phone: (978) 630-6256
Fax: (978) 630-6489
Show map & directions

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

Additional practice locations (1)

  • 825 Chalkstone Ave, Providence, RI 02908-4728 — (401) 456-2109

Specialties & licences

Blood Banking & Transfusion Medicine Physician (primary) Taxonomy 207ZB0001X · Licence 80164 (MA)
Clinical Pathology/Laboratory Medicine Physician Taxonomy 207ZP0105X · Licence 80164 (MA)
Anatomic Pathology & Clinical Pathology Physician Taxonomy 207ZP0102X · Licence 80164 (MA)
Anatomic Pathology & Clinical Pathology Physician Taxonomy 207ZP0102X · Licence MD08831 (RI)

Record details

NPI number1427048628
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedOctober 27, 2005
Last updated in NPPESMay 5, 2026
Certification dateMay 5, 2026
Mailing address242 Green St, Gardner, MA 01440-1336

Medicare enrollment

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

Medicare specialtyPATHOLOGY
Medical schoolPERELMAN SCHOOL OF MED AT THE UNIVERSITY OF PENNSYLVANIA
Graduated 1990 (36 years in practice)
Group practice University Pathologists, Llc — 20 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

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