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

Mr. Oliver B Diaz, MD

Individual provider Internal Medicine Physician · NPI 1124037312

Mr. Oliver B Diaz, MD is an Internal Medicine in Bristol, Connecticut. Qualified in 1968, 58 years ago. Practices as a sole proprietor and accepts Medicare assignment. Licensed in Connecticut.

Years since qualifying
58
Licensed in
CT
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

46 Goodwin St
Bristol, CT 06010-5807
Phone: (860) 589-5593
Fax: (860) 584-0056
Show map & directions

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

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 016620 (CT)

Record details

NPI number1124037312
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedAugust 5, 2006
Last updated in NPPESJune 9, 2020
Certification dateJune 9, 2020

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolOTHER
Graduated 1968 (58 years in practice)
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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