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

MS. Erin M O'Toole, PA-C

Individual provider Physician Assistant · NPI 1679547368

MS. Erin M O'Toole, PA-C is a Physician Assistant in North Grafton, Massachusetts. Qualified in 1997, 29 years ago. Practices with Umass Memorial Medical Group Inc, a 2,467-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Massachusetts.

Years since qualifying
29
Licensed in
MA
In the registry since
2006
What do these letters mean?
PA-C — Physician Assistant, Certified
A physician assistant who holds current national certification.

See every abbreviation used in this directory →

Practice location Address checks out

100 Worcester St
North Grafton, MA 01536-1024
Phone: (508) 839-7307
Fax: (508) 839-5758
Show map & directions

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

Specialties & licences

Physician Assistant (primary) Taxonomy 363A00000X · Licence PA887 (MA)

Record details

NPI number1679547368
Entity typeIndividual (Type 1)
GenderFemale
Credentials PA-C
Sole proprietorNo
NPI enumeratedFebruary 17, 2006
Last updated in NPPESJuly 22, 2026
Certification dateJuly 22, 2026

Medicare enrollment

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

Medicare specialtyPHYSICIAN ASSISTANT
Medical schoolOTHER
Graduated 1997 (29 years in practice)
Group practice Umass Memorial Medical Group Inc — 2467 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
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 patients211
Services billed 449 a service is one billed item, such as a visit, a test or a procedure
Average patient age77

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.

Colleagues at Umass Memorial Medical Group Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 2467 clinicians in the practice; 12 are shown here.

Other providers in North Grafton