NPPES file of Aug 9, 2026

Erwin Mermelstein, M.D.

Cardiovascular Disease Physician · East Brunswick, NJ

Erwin Mermelstein, M.D. is a cardiovascular disease physician with a practice address in East Brunswick, New Jersey, and NPI 1538102843, issued on Jun 14, 2006. Check the license (New Jersey 25MA04203400, 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
1538102843
Name
Erwin Mermelstein
Credential
M.D.
Primary taxonomy
Cardiovascular Disease Physician 207RC0000X
License number
25MA04203400 NJ
Self-reported in NPPES; status is on the state search
Practice location
593 Cranbury Road, East Brunswick, NJ 08816
Phone
(732) 390-3333
Enumerated
Jun 14, 2006
Record last updated
Apr 17, 2025
Fax
(732) 390-9244
Medicare enrollment
Enrolled (PECOS I20040611000071); accepts Medicare assignment
Medical or professional school
Js Weill Medical College, Cornell University, 1978
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 593 Cranbury Road

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

  1. Dory Altmann, MDCardiovascular Disease Physician1114954005
  2. Julie Bourne, PA-CPhysician Assistant1043445877
  3. Tricia Gilbert, MDPulmonary Disease Physician1720177090
  4. Andrea Harangozo, MDPulmonary Disease Physician1982793253
  5. Barnes Keller, MDCardiovascular Disease Physician1255375135
  6. Donna Klitzman, MDPulmonary Disease Physician1295824563

Verify Erwin Mermelstein 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 25MA04203400
    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

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2.2 times the Medicare Part D claims of the average cardiovascular disease physician in 2024

6,905 Medicare Part D claims for 757 beneficiaries, against an average of 3,078 among the 20,728 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims.

  1. Erwin Mermelstein6,905
  2. Specialty average3,078

Most prescribed

  1. Atorvastatin Calcium907 claims
  2. Rosuvastatin Calcium707 claims
  3. Ezetimibe657 claims
  4. Amlodipine Besylate633 claims
  5. Metoprolol Succinate515 claims
  6. Eliquis334 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 MIPS final score for 2023 (Medicare payment program): 93.7 of 100

The Merit-based Incentive Payment System score is reported for this clinician. 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 score77.8
  2. Costnot scored (reweighted)
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

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

Industry payments in 2024: $132.98

7 payments; by number, the most common kind was food and beverage; the largest payer was E.R. Squibb & Sons, L.L.C. The 16,686 providers of this specialty with any payment received $3,819.56 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Erwin Mermelstein$132.98
  2. Specialty average$3,819.56

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through 2 group practices

  1. Robert Wood Johnson Medical Associates AT Hamilton PALinden, NJ
  2. Robert Wood Johnson Physician EnterpriseEast Brunswick, NJ

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

Erwin Mermelstein among 1,102 cardiovascular disease physician records in New Jersey

Erwin Mermelstein, M.D. is one of 1,102 cardiovascular disease physician records with a practice address in New Jersey. 87% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 16% of them.

  • NPI issued2006 · 16% of these records are older, 40% newer
  • In a Medicare fileYes · 87% of these records are
  • In the CMS Doctors and Clinicians fileYes · 76% of these records are
  • Graduated1978 · median 1997 among the 833 with a school on file
  • Record last updated2025 · 64% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RC0000X and a New Jersey practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

19 cardiovascular disease physician records list a practice address in East Brunswick

They are 19 of the 1,455 NPPES records with a practice address in East Brunswick, and 1,102 cardiovascular disease physician records in New Jersey.

The 8 cardiovascular disease physician records with the nearest ZIP codes

  1. Dory Altmann, MDEast Brunswick, NJ 088161114954005
  2. Anthony Altobelli, MDEast Brunswick, NJ 088161003843905
  3. John Burns, MDEast Brunswick, NJ 088161962466284
  4. Jeanne Demoss, DOEast Brunswick, NJ 088161245263144
  5. Laxmipathi Garipalli, MDEast Brunswick, NJ 088161851325500
  6. Barnes Keller, MDEast Brunswick, NJ 088161255375135
  7. Hyung Gi Kim, M.D.East Brunswick, NJ 088161609813781
  8. Ashok Kumar, M.D.East Brunswick, NJ 088161962438036

Common questions

What is Erwin Mermelstein, M.D.'s NPI number?

Erwin Mermelstein, M.D.'s National Provider Identifier (NPI) is 1538102843, issued on Jun 14, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Erwin Mermelstein, M.D. located?

The NPPES record lists a practice address at 593 Cranbury Road, East Brunswick, NJ, 08816. Phone: (732) 390-3333. Providers update this record themselves, so call before visiting.

How can I verify Erwin Mermelstein, M.D.'s license?

NPPES lists New Jersey license number 25MA04203400, 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 Erwin Mermelstein, M.D. prescribe under Medicare Part D?

In 2024, Erwin Mermelstein, M.D. had 6,905 Medicare Part D claims for 757 beneficiaries; the average among cardiovascular disease physician prescribers was 3,078. Part D covers Medicare prescriptions only.

What is Erwin Mermelstein, M.D.'s MIPS final score?

The 2023 MIPS final score is 93.7 of 100. 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.