Tamar D. Mermelstein, PA-C
Physician Assistant · Ridgewood, NJ
Tamar D. Mermelstein, PA-C is a physician assistant with a practice address in Ridgewood, New Jersey, and NPI 1811411267, issued on Jul 27, 2017. Check the license (New Jersey 25MP00469000, as entered in NPPES) with the New Jersey board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Tamar D. Mermelstein
- Credential
- PA-C
- Primary taxonomy
- Physician Assistant 363A00000X
- License numbers
- 25MP00469000 NJ
021108 NY
Self-reported in NPPES; status is on the state search - Practice location
- 1200 E Ridgewood Ave, Ridgewood, NJ 07450
- Phone
- (201) 493-1717
- Enumerated
- Jul 27, 2017
- Record last updated
- Jun 19, 2019 (not updated in 7 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20190405000838); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 3,393 in New Jersey → Look up another NPI →
Also registered at 1200 E Ridgewood Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Tamar D. Mermelstein in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich New Jersey board licenses this profession
Search for license 25MP00469000Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
47% fewer Medicare Part D claims than the average physician assistant in 2024
436 Medicare Part D claims for 185 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. Brand-name drugs were 8% of claims.
Most prescribed
- Clobetasol Propionate68 claims
- Ketoconazole52 claims
- Triamcinolone Acetonide43 claims
- Hydrocortisone30 claims
- Clindamycin Phosphate27 claims
- Ammonium Lactate16 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: $1,174.61
107 payments; by number, the most common kind was food and beverage; the largest payer was E.R. Squibb & Sons, L.L.C. The 64,719 providers of this specialty with any payment received $841.65 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
- Clark Dermatology LLCClark, NJ
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Tamar D. Mermelstein among 3,393 physician assistant records in New Jersey
Tamar D. Mermelstein, PA-C is one of 3,393 physician assistant records with a practice address in New Jersey. 78% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2017, is newer than 40% of them.
- NPI issued2017 · 40% of these records are older, 56% newer
- In a Medicare fileYes · 78% of these records are
- In the CMS Doctors and Clinicians fileYes · 64% of these records are
- Graduated2017 · median 2019 among the 2,168 with a school on file
- Record last updated2019 · 35% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363A00000X and a New Jersey practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
30 physician assistant records list a practice address in Ridgewood
They are 30 of the 1,059 NPPES records with a practice address in Ridgewood, and 3,393 physician assistant records in New Jersey.
All 3,393 in New Jersey → Every provider in Ridgewood → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- Martine Caussimon, PARidgewood, NJ 074501699924761
- Jennifer Eskenasi, PARidgewood, NJ 074501285810549
- Lisa Flatley, PA-CRidgewood, NJ 074501790177053
- Alisa Goulbourne-Scott, PA-CRidgewood, NJ 074501942428255
- Kelli Howell, P.A.Ridgewood, NJ 074501932535200
- Michelle James, PA-CRidgewood, NJ 074501841638780
- Andrew Kuiken, PA-CRidgewood, NJ 074501902181597
- Claudia Lucas, PA-CRidgewood, NJ 074501497157408
Common questions
What is Tamar D. Mermelstein, PA-C's NPI number?
Tamar D. Mermelstein, PA-C's National Provider Identifier (NPI) is 1811411267, issued on Jul 27, 2017. An NPI identifies a provider in billing; it is not a license.
Where is Tamar D. Mermelstein, PA-C located?
The NPPES record lists a practice address at 1200 E Ridgewood Ave, Ridgewood, NJ, 07450. Phone: (201) 493-1717. Providers update this record themselves, so call before visiting.
How can I verify Tamar D. Mermelstein, PA-C's license?
NPPES lists New Jersey license number 25MP00469000, as entered by the provider. Search the New Jersey board that licenses this profession; the NPPES record confirms identity only.
How much does Tamar D. Mermelstein, PA-C prescribe under Medicare Part D?
In 2024, Tamar D. Mermelstein, PA-C had 436 Medicare Part D claims for 185 beneficiaries; the average among physician assistant prescribers was 830. 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.