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

Andrea P Grealish, PA

Individual provider Physician Assistant · NPI 1144379454

Andrea P Grealish, PA is a Physician Assistant in Burlington, Massachusetts. Qualified in 1989, 37 years ago. Practices with Lahey Clinic Inc, a 1,372-clinician group and accepts Medicare assignment. Licensed in Massachusetts.

Years since qualifying
37
Licensed in
MA
In the registry since
2007
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 →

Claim this listing Report a problem Suggest an edit

Practice location Address checks out

41 Mall Rd Lahey Clinic Inc
Burlington, MA 01805-0001 Not confirmed with CMS for 14 years — call before visiting
Phone: (781) 744-8000
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

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

Specialties & licences

Physician Assistant (primary) Taxonomy 363A00000X · Licence 314 (MA)

Record details

NPI number1144379454
Entity typeIndividual (Type 1)
GenderFemale
Credentials PA
Sole proprietorNo
NPI enumeratedJanuary 9, 2007
Last updated in NPPESOctober 24, 2011

Medicare enrollment

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

Medicare specialtyPHYSICIAN ASSISTANT
Medical schoolOTHER
Graduated 1989 (37 years in practice)
Group practice Lahey Clinic Inc — 1372 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients149
Services billed 204 a service is one billed item, such as a visit, a test or a procedure
Average patient age71

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

  • Lahey Hospital & Medical Center, Burlington Hospital · Burlington, MA

Colleagues at Lahey Clinic Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 1372 clinicians in the practice; 12 are shown here.

Other providers in Burlington