Clinicians affiliated with Nantucket Physicians Organization

21 clinicians on file with this group · most practice in Boston-Cambridge-Newton, MA-NH · PAC ID 6608065438

Affiliation snapshotOctober 2, 2026CMS Doctors and Clinicians file, current snapshot (no end-of-2024 archive), applied to 2024
Activity year2024Medicare Part B claims, Original Medicare fee-for-service

21 clinicians affiliated with Nantucket Physicians Organization are in the 2024 Medicare Part B data, 12 of them physicians. Data years with affiliated clinicians: 2020, 2021, 2022, 2023, 2024.

Each clinician's exact figures are in their Physician Report, from their page; a specialty's figures in this market are in a Market Comparison. View sample report · Already purchased? Open your report

Affiliated clinicians by specialty, 2024

All specialties · Certified Registered Nurse Anesthetist (CRNA) (4) · General Surgery (4) · Physician Assistant (3) · Orthopedic Surgery (2) · Urology (2) · Dermatology (1) · Hand Surgery (1) · Internal Medicine (1) · Nurse Practitioner (1) · Obstetrics & Gynecology (1) · Podiatry (1)

Specialty links go to the specialty in Boston-Cambridge-Newton, MA-NH.

Clinicians affiliated with Nantucket Physicians Organization, 2024

Alphabetical by last name; 21.

NameSpecialtyCity
Lauren AlmeidaPhysician AssistantCambridge, MA
Tiffany Blake-Lamb, MDObstetrics & GynecologyBoston, MA
Martin M Dolan, MDHand SurgeryBoston, MA
Alison M Fassnacht, PA-CPhysician AssistantNantucket, MA
Dana K Fugelso, M.D.General SurgeryBrookline, MA
Penne T Greer, CRNACertified Registered Nurse Anesthetist (CRNA)Plymouth, MA
Rachel M Hammerschmidt, CRNACertified Registered Nurse Anesthetist (CRNA)Plymouth, MA
John T Hower, DOGeneral SurgeryNatrona Heights, PA
Richard Hudson Koehler, M.D.General SurgeryOak Bluffs, MA
Arianne Kourosh, MDDermatologyBoston, MA
Michael C Lee, MDUrologyBoston, MA
Raymond R Monto, M.D.Orthopedic SurgeryNantucket, MA
Regina M Mostone, DPMPodiatryOak Bluffs, MA
Francis X Oconnor, MDGeneral SurgeryNantucket, MA
William Perry, CRNACertified Registered Nurse Anesthetist (CRNA)Portsmouth, NH
Rick D Phelps, M.D.UrologyLebanon, NH
Doreen Phillips, APRNNurse PractitionerSeattle, WA
Jonathan RoseInternal MedicineBoston, MA
John J Tierney, DOOrthopedic SurgeryDedham, MA
Maria C Vaz, CRNACertified Registered Nurse Anesthetist (CRNA)Brockton, MA
Alexandra Wolfe, PA-CPhysician AssistantWaltham, MA

Practice locations

Listed practice locations in Massachusetts.

Source: CMS Doctors and Clinicians National Downloadable File, snapshot October 2, 2026.

Membership comes from the CMS Doctors and Clinicians file. CMS does not publish an end-of-year archive of it, so the current snapshot is applied to every data year. A clinician affiliated with several groups or hospitals appears on each of their pages. How group pages are built · Limitations