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

Dr. Stephen J. Bonasera, MD

Individual provider Geriatric Medicine (Internal Medicine) Physician · NPI 1780632729

Dr. Stephen J. Bonasera, MD is a Geriatric Medicine in Longmeadow, Massachusetts. Graduated from Emory University School of Medicine in 1995, 31 years ago. Practices with Baystate Medical Practices Inc, a 1,346-clinician group, works from 2 locations, accepts Medicare assignment and offers telehealth. Licensed in Massachusetts.

Years since qualifying
31
Trained at
Emory University School of Medicine
Licensed in
MA
In the registry since
2006
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

21 Dwight Rd Ste 204
Longmeadow, MA 01106-1765
Phone: (413) 795-0268
Fax: (413) 795-8502
Show map & directions

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

Additional practice locations (1)

  • 759 Chestnut Street, Springfield, MA 01107-1619 — (413) 794-3147

Specialties & licences

Geriatric Medicine (Internal Medicine) Physician (primary) Taxonomy 207RG0300X · Licence 290745 (MA)

Record details

NPI number1780632729
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMay 4, 2006
Last updated in NPPESJanuary 21, 2025
Certification dateJanuary 21, 2025
Mailing address280 Chestnut Street, 2nd Fl, Springfield, MA 01199-1001

Medicare enrollment

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

Medicare specialtyGERIATRIC MEDICINE
Medical schoolEMORY UNIVERSITY SCHOOL OF MEDICINE
Graduated 1995 (31 years in practice)
Group practice Baystate Medical Practices Inc — 1346 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

Other providers in Longmeadow