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

Dr. Joseph A. Diaz, MD

Individual provider Internal Medicine Physician · NPI 1356324248

Dr. Joseph A. Diaz, MD is an Internal Medicine in Pawtucket, Rhode Island. Graduated from Warren Alpert Medical School of Brown University in 1996, 30 years ago. Practices with Affinity Physicians LLC, a 734-clinician group and accepts Medicare assignment. Licensed in Rhode Island.

Years since qualifying
30
Trained at
Warren Alpert Medical School of Brown University
Licensed in
RI
In the registry since
2005
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

111 Brewster St Dept OF Internal Medicine
Pawtucket, RI 02860-4400
Phone: (401) 729-3100
Fax: (401) 729-2054
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence MD10665 (RI)

Record details

NPI number1356324248
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedNovember 23, 2005
Last updated in NPPESApril 9, 2021
Certification dateApril 9, 2021

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolWARREN ALPERT MEDICAL SCHOOL OF BROWN UNIVERSITY
Graduated 1996 (30 years in practice)
Group practice Affinity Physicians Llc. — 734 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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