1. Home
  2. Directory
  3. New York
  4. New York New York
  5. Internal Medicine
  6. NPI Profile

LEONARD M. MATTES M.D., P.C.
NPI 1023395654
Internal Medicine - Cardiovascular Disease in New York, NY

Active since November 10, 2011
1199 PARK AVE, SUITE 1F, NEW YORK, NY 10128(212) 876-7045(212) 722-3286 Get Directions Write a Review

NPPES record last updated: November 10, 2011. Verified against the NPPES registry weekly; last sync: July 26, 2026.

About Leonard M. Mattes M.d., P.c. NPPES

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

LEONARD M. MATTES M.D., P.C. (NPI 1023395654) is a healthcare organization registered as a cardiovascular disease in New York, New York and active in the NPI registry since November 2011. The organization lists Leonard M. Mattes, Owner, as its authorized official.

NPPES Registry Identity

NPI1023395654
Entity TypeOrganization
Primary Taxonomy207RC0000X
Legal Business NameLEONARD M. MATTES M.D., P.C.
Location Address1199 PARK AVE, SUITE 1FNew York, NY 10128-1711
Mailing Address1199 Park Ave, Suite 1fNew York, NY 10128-1711 · (212) 876-7045 · Fax (212) 722-3286
Phone(212) 876-7045
Fax(212) 722-3286
Organization SubpartNo
Authorized OfficialLeonard M. MattesOwner · (212) 876-7045
Enumeration DateNovember 10, 2011
✔ NPI 1023395654 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Cardiovascular DiseaseAllopathic & Osteopathic Physicians
Taxonomy Code207RC0000X
License✔ Licensed in NY · 093836
Definition

An internist who specializes in diseases of the heart and blood vessels and manages complex cardiac conditions such as heart attacks and life-threatening, abnormal heartbeat rhythms.

1199 PARK AVE, New York, NY 10128
Open in Google Maps ↗

Group Practice 1

Group TaxonomyThis provider is a business group of one or more individual practitioners, who practice with different areas of specialization.193200000X MULTI-SPECIALTY GROUP

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DR. NANCY BODEN ZVONKOVIC PSY.D.
Psychologist
1199 PARK AVE, APT. IC
NEW YORK, NY 10128
New York County (212) 996-5413
MAXINE L. GANN PSYCHOLOGIST, P.C.
Psychologist
1199 PARK AVE, SUITE 1K
NEW YORK, NY 10128
New York County (212) 860-3368
DONALD A. BERGMAN MD PC
Internal Medicine (Endocrinology, Diabetes & Metabolism)
1199 PARK AVE, SUITE 1F
NEW YORK, NY 10128
New York County (212) 876-7333
DOUGLAS PSYCHOTHERAPY SERVICES, LCSW, PC
Social Worker (Clinical)
1199 PARK AVE, SUITE 1C
NEW YORK, NY 10128
New York County (212) 828-7473
AYHANNA N WILLIAMS
Counselor (Mental Health)
1199 PARK AVE
NEW YORK, NY 10128
New York County (212) 828-7476
DR. DONALD ARTHUR BERGMAN M.D.
Internal Medicine (Endocrinology, Diabetes & Metabolism)
1199 PARK AVE, SUITE 1F
NEW YORK, NY 10128
New York County (212) 876-7333
VICTORIYA SLAVICH PMHNP
Nurse Practitioner (Psychiatric/Mental Health)
1199 PARK AVE
NEW YORK, NY 10128
New York County (212) 828-7473
KAYLA KALOUSDIAN
Counselor (Mental Health)
1199 PARK AVE
NEW YORK, NY 10128
New York County (212) 828-7473

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 Leonard M. Mattes M.D., P.C.'s NPI number?

The NPI number for Leonard M. Mattes M.D., P.C. is 1023395654. It was assigned to this organization in the NPPES registry on November 10, 2011.

Where is Leonard M. Mattes M.D., P.C. located?

Leonard M. Mattes M.D., P.C. is located at 1199 Park Ave Suite 1F, New York, NY 10128. The listed phone number is (212) 876-7045.

What is Leonard M. Mattes M.D., P.C.'s specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Cardiovascular Disease, with taxonomy code 207RC0000X.

When was this NPI record last updated?

The NPPES record for Leonard M. Mattes M.D., P.C. was last updated on November 10, 2011. NPI Profile syncs with the weekly NPPES data releases published by CMS.