Alonso R. Diaz, M. D.
Nephrology Physician · Bridgeville, PA
Alonso R. Diaz, M. D. is a nephrology physician with a practice address in Bridgeville, Pennsylvania, and NPI 1992169171, issued on Apr 13, 2016. Check the license (Pennsylvania MD473697, as entered in NPPES) on the Pennsylvania Department of State (PALS); the Medicare figures below come from public CMS files.
- Name
- Alonso R. Diaz
- Credential
- M. D.
- Primary taxonomy
- Nephrology Physician 207RN0300X
- License numbers
- MD473697 PA
1992169171 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1597 Washington Pike Ste A22, Bridgeville, PA 15017
- Phone
- (412) 489-6919
- Enumerated
- Apr 13, 2016
- Record last updated
- Aug 16, 2023
- Fax
- (412) 489-6279
- Medicare enrollment
- Enrolled (PECOS I20210709000580); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest nephrology physician records → All 651 in Pennsylvania → Look up another NPI →
Also registered at 1597 Washington Pike Ste A22
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Samantha Torok, CRNPNephrology Physician1750481826
Verify Alonso R. Diaz in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersPennsylvania Department of State (PALS)
Search for license MD473697Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
29% fewer Medicare Part D claims than the average nephrology physician in 2024
1,041 Medicare Part D claims for 344 beneficiaries, against an average of 1,465 among the 10,986 providers of this specialty who prescribed in Part D. Brand-name drugs were 19% of claims.
Most prescribed
- Calcitriol111 claims
- Lisinopril95 claims
- Amlodipine Besylate78 claims
- Farxiga67 claims
- Bumetanide64 claims
- Furosemide46 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: $44.80
4 payments; by number, the most common kind was food and beverage; the largest payer was Novartis Pharmaceuticals Corporation. The 8,230 providers of this specialty with any payment received $3,091.37 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
- Teredesai Mccann And Associates PCBridgeville, PA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Alonso R. Diaz among 651 nephrology physician records in Pennsylvania
Alonso R. Diaz, M. D. is one of 651 nephrology physician records with a practice address in Pennsylvania. 84% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2016, is newer than 84% of them.
- NPI issued2016 · 84% of these records are older, 14% newer
- In a Medicare fileYes · 84% of these records are
- In the CMS Doctors and Clinicians fileYes · 72% of these records are
- Graduated2016 · median 2001 among the 468 with a school on file
- Record last updated2023 · 57% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RN0300X and a Pennsylvania practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
10 nephrology physician records list a practice address in Bridgeville
They are 10 of the 513 NPPES records with a practice address in Bridgeville, and 651 nephrology physician records in Pennsylvania.
All 651 in Pennsylvania → Every provider in Bridgeville → Nephrology Physician nationwide →
The 8 nephrology physician records with the nearest ZIP codes
- Ameet Karambelkar, MDBridgeville, PA 150171689990442
- James McCann, D.O.Bridgeville, PA 150171376529289
- Nirav Patel, MDBridgeville, PA 150171144406018
- Matthew Pesacreta, M.D.Bridgeville, PA 150171548246457
- Joshua Sysak, D.O.Bridgeville, PA 150171346313624
- Pradip Teredesai, M.D.Bridgeville, PA 150171528044740
- Samantha Torok, CRNPBridgeville, PA 150171750481826
- Allen Wolfert, M.D.Bridgeville, PA 150171730165960
Common questions
What is Alonso R. Diaz, M. D.'s NPI number?
Alonso R. Diaz, M. D.'s National Provider Identifier (NPI) is 1992169171, issued on Apr 13, 2016. An NPI identifies a provider in billing; it is not a license.
Where is Alonso R. Diaz, M. D. located?
The NPPES record lists a practice address at 1597 Washington Pike Ste A22, Bridgeville, PA, 15017. Phone: (412) 489-6919. Providers update this record themselves, so call before visiting.
How can I verify Alonso R. Diaz, M. D.'s license?
NPPES lists Pennsylvania license number MD473697, as entered by the provider. Search the Pennsylvania Department of State (PALS) at https://www.pals.pa.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Alonso R. Diaz, M. D. prescribe under Medicare Part D?
In 2024, Alonso R. Diaz, M. D. had 1,041 Medicare Part D claims for 344 beneficiaries; the average among nephrology physician prescribers was 1,465. 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.