NPPES file of Aug 9, 2026

Tomas Diaz

Emergency Medicine Physician · Teaneck, NJ

Tomas Diaz is an emergency medicine physician with a practice address in Teaneck, New Jersey, and NPI 1235524083, issued on Mar 30, 2015. Check the license (New Jersey 25MA11863600, as entered in NPPES) on the New Jersey State Board of Medical Examiners; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1235524083
Name
Tomas Diaz
Primary taxonomy
Emergency Medicine Physician 207P00000X
License number
25MA11863600 NJ
Self-reported in NPPES; status is on the state search
Practice location
718 Teaneck RD, Teaneck, NJ 07666
Phone
(800) 833-3000
Enumerated
Mar 30, 2015
Record last updated
Feb 6, 2024
Medicare enrollment
Enrolled (PECOS I20230915000646); accepts Medicare assignment
Medical or professional school
Perelman School Of Med At The University Of Pennsylvania, 2015
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 718 Teaneck RD

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Abel Abebe, MD, MPHStudent in an Organized Health Care Education/Training Program1437098365
  2. Ananea Adamidis, M.D.Nephrology Physician1235139957
  3. Barbara AmayaEmergency Registered Nurse1336973841
  4. Rose Apkarian, RDRegistered Dietitian1619513454
  5. Aurora Aranzazu, FNP-CFamily Nurse Practitioner1992271456
  6. Tracey Arnauer, LCSWClinical Social Worker1053183699

Verify Tomas Diaz in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersNew Jersey State Board of Medical Examiners
    Search for license 25MA11863600
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the New Jersey license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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4% fewer Medicare Part D claims than the average emergency medicine physician in 2024

217 Medicare Part D claims for 159 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. Brand-name drugs were 9% of claims. 17 claims were for opioids.

  1. Tomas Diaz217
  2. Specialty average226

Most prescribed

  1. Cephalexin20 claims
  2. Cyclobenzaprine Hcl13 claims
  3. Famotidine13 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): 82 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.

  1. Qualityout of 100 · 30% of the final score76.5
  2. Costnot scored (reweighted)
  3. Promoting interoperabilitynot scored (reweighted)
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Bills Medicare through 2 group practices

  1. Emergency Physician Services OF New Jersey,professional AssociationTeaneck, NJ
  2. Emergency Physicians OF Englewood, PCEnglewood, NJ

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Tomas Diaz among 1,754 emergency medicine physician records in New Jersey

Tomas Diaz is one of 1,754 emergency medicine physician records with a practice address in New Jersey. 83% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2015, is newer than 68% of them.

  • NPI issued2015 · 68% of these records are older, 30% newer
  • In a Medicare fileYes · 83% of these records are
  • In the CMS Doctors and Clinicians fileYes · 67% of these records are
  • Graduated2015 · median 2011 among the 1,167 with a school on file
  • Record last updated2024 · 55% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a New Jersey practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Emergency Medicine Physician providers in New Jersey

There are 1,754 emergency medicine physician records in New Jersey.

The 8 emergency medicine physician records with the nearest ZIP codes

  1. Kim-King Chan, MDTeaneck, NJ 076661750383188
  2. Alan Gerstel, MDTeaneck, NJ 076661417915737
  3. Alan Miller, MDTeaneck, NJ 076661265484562
  4. Babak Saadatmand, MDTeaneck, NJ 076661114973450
  5. Richard Schwab, MDTeaneck, NJ 076661639132970
  6. Randy Tartacoff, MDTeaneck, NJ 076661508829110
  7. Kenneth Weinberg, M.D.Teaneck, NJ 076661033119094
  8. Jesson Yeh, M.D.Teaneck, NJ 076661003043100

Common questions

What is Tomas Diaz's NPI number?

Tomas Diaz's National Provider Identifier (NPI) is 1235524083, issued on Mar 30, 2015. An NPI identifies a provider in billing; it is not a license.

Where is Tomas Diaz located?

The NPPES record lists a practice address at 718 Teaneck RD, Teaneck, NJ, 07666. Phone: (800) 833-3000. Providers update this record themselves, so call before visiting.

How can I verify Tomas Diaz's license?

NPPES lists New Jersey license number 25MA11863600, as entered by the provider. Search the New Jersey State Board of Medical Examiners at https://newjersey.mylicense.com/verification/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Tomas Diaz prescribe under Medicare Part D?

In 2024, Tomas Diaz had 217 Medicare Part D claims for 159 beneficiaries; the average among emergency medicine physician prescribers was 226. Part D covers Medicare prescriptions only.

What is Tomas Diaz's MIPS final score?

The 2023 MIPS final score is 82 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.