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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 30 days.

DR. LEONARD KRISTAL M.D.
NPI 1871533810
Dermatology - Pediatric Dermatology in East Setauket, NY

Active since June 07, 2006
181 N BELLE MEAD RD, EAST SETAUKET, NY 11733(631) 444-4200 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Dr. Leonard Kristal M.d. NPPES

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

DR. LEONARD KRISTAL M.D. (NPI 1871533810) is an individual pediatric dermatology provider in East Setauket, New York, licensed in New York (183687) and active in the NPI registry since June 2006.

NPPES Registry Identity

NPI1871533810
Entity TypeIndividualMale
Primary Taxonomy207NP0225X
Provider Legal NameDR. LEONARD KRISTALCredential: M.D.
Location Address181 N BELLE MEAD RDEast Setauket, NY 11733-3495
Mailing AddressPo Box 1559Stony Brook, NY 11790-0989 · (631) 444-4200
Phone(631) 444-4200
Sole ProprietorNo
Enumeration DateJune 7, 2006
Last NPPES UpdateJuly 13, 2026
✔ NPI 1871533810 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyDermatology · Pediatric DermatologyAllopathic & Osteopathic Physicians
Taxonomy Code207NP0225X
License✔ Licensed in NY · 183687
Definition
A pediatric dermatologist has, through additional special training, developed expertise in the treatment of specific skin disease categories with emphasis on those diseases which predominate in infants, children and adolescents.
181 N BELLE MEAD RD, East Setauket, NY 11733
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Other Identifiers 3

Other4564409NY · Aetna
Other70F19NY · Empire Bc/bs
Medicaid01211072NY

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.

JOSEPH S CIRRONE MD
Radiology (Radiation Oncology)
181 N BELLE MEAD RD, SUITE 1
EAST SETAUKET, NY 11733
Suffolk County (631) 689-6776
MS. LORRAINE DANOWSKI R.D.
Dietitian, Registered
181 N BELLE MEAD RD
EAST SETAUKET, NY 11733
Suffolk County (111) 111-1111
DR. VIVICA VOLLMER M.D.
Family Medicine
181 N BELLE MEAD RD
EAST SETAUKET, NY 11733
Suffolk County (631) 444-5858
BEVERLY ANN DEAN NP
Nurse Practitioner (Family)
181 N BELLE MEAD RD, SUITE 2
EAST SETAUKET, NY 11733
Suffolk County (631) 444-5858
DR. DONNA MELTZER M.D.
Family Medicine
181 N BELLE MEAD RD
EAST SETAUKET, NY 11733
Suffolk County (631) 444-0624
DR. SUSAN DEBEVOISE D.O.
Family Medicine
181 N BELLE MEAD RD
EAST SETAUKET, NY 11733
Suffolk County (631) 444-0624
SHERYLL ANN POLLO BALTAZAR NP-C
Nurse Practitioner (Adult Health)
181 N BELLE MEAD RD
EAST SETAUKET, NY 11733
Suffolk County (631) 444-2599
DR. MARCIA TONNESEN M.D.
Dermatology
181 N BELLE MEAD RD
EAST SETAUKET, NY 11733
Suffolk County (631) 444-4200

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 Kristal's NPI number?

The NPI number for Leonard Kristal is 1871533810. It was assigned to this individual provider in the NPPES registry on June 7, 2006.

Where is Leonard Kristal located?

Leonard Kristal practices at 181 N Belle Mead Rd, East Setauket, NY 11733. The listed phone number is (631) 444-4200.

What is Leonard Kristal's specialty?

The primary specialty registered for this NPI is Dermatology, specializing in Pediatric Dermatology, with taxonomy code 207NP0225X.

When was this NPI record last updated?

The NPPES record for Leonard Kristal was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 23 days 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.