Maria C. Diaz, MD
Internal Medicine Physician · Bronx, NY
Maria C. Diaz, MD is an internal medicine physician with a practice address in Bronx, New York, and NPI 1558451450, issued on Oct 13, 2006. Check the license (New York 191785, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.
- Name
- Maria C. Diaz
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 191785 NY
Self-reported in NPPES; status is on the state search - Practice location
- Mmg - University Avenue, Bronx, NY 10468
- Phone
- (718) 563-0757
- Enumerated
- Oct 13, 2006
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20050913000391); may accept Medicare assignment
- Medical or professional school
- Albert Einstein College Of Medicine Of Yeshiva University, 1990
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
Also registered at Mmg - University Avenue
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Ronald Dudek, MDObstetrics & Gynecology Physician1609956184
- Danielle Duret, MDInternal Medicine Physician1942393152
- Daisy Otero, MDInternal Medicine Physician1124111331
- Eva Rynjah, MDPediatrics Physician1093890444
Verify Maria C. Diaz in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNYS Education Department, Office of the Professions
Search for license 191785Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
6.9 times the Medicare Part D claims of the average internal medicine physician in 2024
21,929 Medicare Part D claims for 878 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 16% of claims. 401 claims were for opioids.
Most prescribed
- Atorvastatin Calcium917 claims
- Omeprazole855 claims
- Amlodipine Besylate837 claims
- Albuterol Sulfate Hfa776 claims
- Metformin Hcl735 claims
- Diclofenac Sodium554 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.
The practice group's MIPS final score for 2023 (Medicare payment program): 100 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $303.63
4 payments; by number, the most common kind was food and beverage; the largest payer was Kyowa Kirin, Inc. 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.
One hospital affiliation
- Montefiore Medical CenterBronx, NY · Acute Care Hospitals3 of 5 stars
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
960 internal medicine physician records list a practice address in Bronx
They are 960 of the 32,017 NPPES records with a practice address in Bronx, and 12,067 internal medicine physician records in New York.
All 960 in Bronx → All 12,067 in New York → Every provider in Bronx →
Other internal medicine physician records in New York
- Deborah Aanonsen, D.O.Staten Island, NY1952395717
- Nivedita Aanur, M.D.New York, NY1982833471
- Jay Aaron, MDGreat Neck, NY1245332956
- Ahmad AbadiPoughkeepsie, NY1780258517
- Jamsheed Abadi, MDBrooklyn, NY1477537496
- Antonieta Abarientos, MDNew Rochelle, NY1649285123
- Zurab Abayev, M.D.Brooklyn, NY1841283058
- Ehab Abaza, MDNew York, NY1114507555
- Vaidarshi Abbagoni, MDNew York, NY1871237495
- Muhammad AbbasRichmond Hill, NY1053996587
Common questions
What is Maria C. Diaz, MD's NPI number?
Maria C. Diaz, MD's National Provider Identifier (NPI) is 1558451450, issued on Oct 13, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Maria C. Diaz, MD located?
The NPPES record lists a practice address at Mmg - University Avenue, Bronx, NY, 10468. Phone: (718) 563-0757. Providers update this record themselves, so call before visiting.
How can I verify Maria C. Diaz, MD's license?
NPPES lists New York license number 191785, as entered by the provider. Search the NYS Education Department, Office of the Professions at https://www.op.nysed.gov/services/verifications/online-verification-searches. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Maria C. Diaz, MD prescribe under Medicare Part D?
In 2024, Maria C. Diaz, MD had 21,929 Medicare Part D claims for 878 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
What is Maria C. Diaz, MD's MIPS final score?
The 2023 MIPS final score is 100 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.