Alex P. Diaz De Villalvilla, MD
Internal Medicine Physician · Providence, RI
Alex P. Diaz De Villalvilla, MD is an internal medicine physician with a practice address in Providence, Rhode Island, and NPI 1548422074, issued on Jun 26, 2008. Check the license (Rhode Island MD13891, as entered in NPPES) on the Rhode Island Board of Medical Licensure and Discipline; the Medicare figures below come from public CMS files.
- Name
- Alex P. Diaz De Villalvilla
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- MD13891 RI
Self-reported in NPPES; status is on the state search - Practice location
- 593 Eddy St, Providence, RI 02903
- Phone
- (401) 444-4741
- Enumerated
- Jun 26, 2008
- Record last updated
- Jun 12, 2012 (not updated in 14 years: call before relying on the address or phone)
- Fax
- (401) 444-4445
- Medicare enrollment
- Enrolled (PECOS I20120813000329); accepts Medicare assignment
- Medical or professional school
- Yale University School Of Medicine, 2008
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 1,033 in Rhode Island → Look up another NPI →
Also registered at 593 Eddy St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Farah AbazaStudent in an Organized Health Care Education/Training Program1598437477
- Nilofar Abdul ShukurPhysician Assistant1336010529
- Hael Abdulrazeq, MDNeurological Surgery Physician1659934289
- James Abernathy, MDAnesthesiology Physician1942257217
- Karen Abi Chebl, MDStudent in an Organized Health Care Education/Training Program1255179552
- Georges Abi Roustom, MDAnesthesiology Physician1548871908
Verify Alex P. Diaz De Villalvilla in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersRhode Island Board of Medical Licensure and Discipline
Search for license MD13891Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
22% more Medicare Part D claims than the average internal medicine physician in 2024
3,862 Medicare Part D claims for 199 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of claims. 116 claims were for opioids.
Most prescribed
- Rosuvastatin Calcium286 claims
- Amlodipine Besylate185 claims
- Atorvastatin Calcium168 claims
- Omeprazole103 claims
- Levothyroxine Sodium101 claims
- Losartan Potassium80 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $150.00
1 payment: food and beverage; the largest payer was Madrigal Pharmaceuticals. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Medical Associates OF RI, Inc.Bristol, RI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Alex P. Diaz De Villalvilla among 1,033 internal medicine physician records in Rhode Island
Alex P. Diaz De Villalvilla, MD is one of 1,033 internal medicine physician records with a practice address in Rhode Island. 80% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 43% of them.
- NPI issued2008 · 43% of these records are older, 53% newer
- In a Medicare fileYes · 80% of these records are
- In the CMS Doctors and Clinicians fileYes · 57% of these records are
- Graduated2008 · median 2006 among the 590 with a school on file
- Record last updated2012 · 48% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Rhode Island practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
511 internal medicine physician records list a practice address in Providence
They are 511 of the 9,647 NPPES records with a practice address in Providence, and 1,033 internal medicine physician records in Rhode Island.
All 1,033 in Rhode Island → Every provider in Providence → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Kristin Anderson, MDProvidence, RI 029031740236173
- Andrew Bostom, MDProvidence, RI 029031902850274
- Sybil Cineas, MDProvidence, RI 029031053364984
- Heinrich Elinzano, M.D.Providence, RI 029031063477032
- Rebekah Gardner, MDProvidence, RI 029031275597536
- Sajeev Handa, MDProvidence, RI 029031528012747
- William Mason, M.D.Providence, RI 029031679579338
- Donnah Mathews, MDProvidence, RI 029031942288097
Common questions
What is Alex P. Diaz De Villalvilla, MD's NPI number?
Alex P. Diaz De Villalvilla, MD's National Provider Identifier (NPI) is 1548422074, issued on Jun 26, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Alex P. Diaz De Villalvilla, MD located?
The NPPES record lists a practice address at 593 Eddy St, Providence, RI, 02903. Phone: (401) 444-4741. Providers update this record themselves, so call before visiting.
How can I verify Alex P. Diaz De Villalvilla, MD's license?
NPPES lists Rhode Island license number MD13891, as entered by the provider. Search the Rhode Island Board of Medical Licensure and Discipline at https://healthri.mylicense.com/Verification/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Alex P. Diaz De Villalvilla, MD prescribe under Medicare Part D?
In 2024, Alex P. Diaz De Villalvilla, MD had 3,862 Medicare Part D claims for 199 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.