Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Alex P Diaz de Villalvilla, MD

Individual provider Pediatrics Physician · NPI 1548422074

Alex P Diaz de Villalvilla, MD practises Internal Medicine in Providence, Rhode Island. Graduated from Yale University School of Medicine in 2008, 18 years ago. Practices with Medical Associates of Ri, Inc, a 32-clinician group, works from 2 locations, accepts Medicare assignment and offers telehealth. Licensed in Rhode Island.

Years since qualifying
18
Trained at
Yale University School of Medicine
Licensed in
RI
In the registry since
2008
Specialties on file
2
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

593 Eddy St Apc 5
Providence, RI 02903-4923
Phone: (401) 444-4741
Fax: (401) 444-4445
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 712 Broad St, Providence, RI 02907-1465 — (401) 233-5060

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence MD13891 (RI)
Pediatrics Physician Taxonomy 208000000X · Licence MD13891 (RI)

Record details

NPI number1548422074
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 26, 2008
Last updated in NPPESSeptember 21, 2026
Certification dateSeptember 21, 2026

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolYALE UNIVERSITY SCHOOL OF MEDICINE
Graduated 2008 (18 years in practice)
Group practice Medical Associates Of Ri, Inc. — 32 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

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 patients67
Services billed 259 a service is one billed item, such as a visit, a test or a procedure
Average patient age75

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. Those with a page here are linked.

Colleagues at Medical Associates of Ri, Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 32 clinicians in the practice; 12 are shown here.

Other providers in Providence