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

Dr. Joseph Stewart Bass, MD

Individual provider Emergency Medicine Physician · NPI 1346256278

Dr. Joseph Stewart Bass, MD practises Emergency Medicine in Holyoke, Massachusetts. Graduated from University of Chicago, Pritzker School of Medicine in 1981, 45 years ago. Practices with Holyoke Health Center Inc, a 40-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Massachusetts.

Years since qualifying
45
Trained at
University of Chicago, Pritzker 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

230 Maple St Ste 1
Holyoke, MA 01040-5140
Phone: (413) 420-2200
Fax: (413) 534-5416
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 575 Beech St, Holyoke, MA 01040-2223 — (413) 534-2570

Specialties & licences

Emergency Medicine Physician (primary) Taxonomy 207P00000X · Licence 53078 (MA)

Record details

NPI number1346256278
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJuly 31, 2006
Last updated in NPPESNovember 12, 2025
Certification dateNovember 12, 2025

Medicare enrollment

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

Medicare specialtyEMERGENCY MEDICINE
Medical schoolUNIVERSITY OF CHICAGO, PRITZKER SCHOOL OF MEDICINE
Graduated 1981 (45 years in practice)
Group practice Holyoke Health Center Inc. — 40 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 patients38
Services billed 85 a service is one billed item, such as a visit, a test or a procedure
Average patient age62

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 Holyoke Health Center Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 40 clinicians in the practice; 12 are shown here.

Other providers in Holyoke