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HAROLD MERMELSTEIN, M.D., P.C
NPI 1275720369
Dermatology in Scarsdale, NY

Active since October 02, 2007
1075 CENTRAL PARK AVE, SUITE 304, SCARSDALE, NY 10583(914) 667-2242(914) 667-8521 Get Directions Write a Review

NPPES record last updated: May 20, 2014. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Harold Mermelstein, M.d., P.c NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

HAROLD MERMELSTEIN, M.D., P.C (NPI 1275720369) is a healthcare organization registered as a dermatology in Scarsdale, New York and active in the NPI registry since October 2007. The organization lists Harold Mermelstein, Business Owner, as its authorized official.

NPPES Registry Identity

NPI1275720369
Entity TypeOrganization
Primary Taxonomy207N00000X
Legal Business NameHAROLD MERMELSTEIN, M.D., P.C.
Location Address1075 CENTRAL PARK AVE, SUITE 304Scarsdale, NY 10583-3242
Mailing Address1075 Central Park Ave, Suite 304Scarsdale, NY 10583-3242 · (914) 667-2242 · Fax (914) 667-8521
Phone(914) 667-2242
Fax(914) 667-8521
Organization SubpartNo
Authorized OfficialHarold MermelsteinBusiness Owner · (914) 667-2242
Enumeration DateOctober 2, 2007
Last NPPES UpdateMay 20, 2014
✔ NPI 1275720369 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyDermatologyAllopathic & Osteopathic Physicians
Taxonomy Code207N00000X
License✔ Licensed in NY · 136631
Definition
A dermatologist is trained to diagnose and treat pediatric and adult patients with benign and malignant disorders of the skin, mouth, external genitalia, hair and nails, as well as a number of sexually transmitted diseases. The dermatologist has had additional training and experience in the diagnosis and treatment of skin cancers, melanomas, moles and other tumors of the skin, the management of contact dermatitis and other allergic and nonallergic skin disorders, and in the recognition of the skin manifestations of systemic (including internal malignancy) and infectious diseases. Dermatologists have special training in dermatopathology and in the surgical techniques used in dermatology. They also have expertise in the management of cosmetic disorders of the skin such as hair loss and scars and the skin changes associated with aging.
1075 CENTRAL PARK AVE, Scarsdale, NY 10583
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Other Names 1

Doing Business AsHarold Mermelstein, M.d., P.c

Other Identifiers 2

Medicaid00436219NY
Medicare PINWYWSQ1NY

Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Harold Mermelstein, M.d., P.c is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

Medicare enrollment records show 1 clinician reassigns Medicare billing to Harold Mermelstein, M.D., P.C, which bills Medicare for the services this clinician delivers.

Clinician (1)

Harold Mermelstein, M.D.
Dermatology
NPI 1053308429
1075 CENTRAL PARK AVE SUITE 304
Scarsdale, NY 10583
(914) 667-2242
✔ PECOS✔ Accepts MedicareSame address

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Harold Mermelstein, M.D., P.C.'s NPI number?

The NPI number for Harold Mermelstein, M.D., P.C. is 1275720369. It was assigned to this organization in the NPPES registry on October 2, 2007. The provider is doing business as Harold Mermelstein, M.D., P.C.

Where is Harold Mermelstein, M.D., P.C. located?

Harold Mermelstein, M.D., P.C. is located at 1075 Central Park Ave Suite 304, Scarsdale, NY 10583. The listed phone number is (914) 667-2242.

What is Harold Mermelstein, M.D., P.C.'s specialty?

The primary specialty registered for this NPI is Dermatology with taxonomy code 207N00000X.

Is Harold Mermelstein, M.D., P.C. enrolled in Medicare?

Yes. Harold Mermelstein, M.D., P.C. is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Harold Mermelstein, M.D., P.C.?

According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Dermatology) reassigns their Medicare billing to Harold Mermelstein, M.D., P.C.. A reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for the clinician's services. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

When was this NPI record last updated?

The NPPES record for Harold Mermelstein, M.D., P.C. was last updated on May 20, 2014. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.