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Newly Listed Provider — this NPI profile has been added to the NPI registry within the last 90 days.

SYDNEY DREYFUS MHC-LP
NPI 1700782406
Counselor - Mental Health in Massapequa, NY

Active since October 19, 2026
627 BROADWAY STE 200, MASSAPEQUA, NY 11758(516) 308-1078 Get Directions Write a Review

NPPES record added: October 19, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Sydney Dreyfus Mhc-lp NPPES

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

SYDNEY DREYFUS MHC-LP (NPI 1700782406) is an individual mental health provider in Massapequa, New York and active in the NPI registry since October 2026.

NPPES Registry Identity

NPI1700782406
Entity TypeIndividualFemale
Primary Taxonomy101YM0800X
Provider Legal NameSYDNEY DREYFUSCredential: MHC-LP
Location Address627 BROADWAY STE 200Massapequa, NY 11758-5031
Mailing Address627 Broadway Ste 200Massapequa, NY 11758-5031 · (516) 308-1078
Phone(516) 308-1078
Sole ProprietorNo
Enumeration DateOctober 19, 2026
NPPES CertifiedOctober 19, 2026
✔ NPI 1700782406 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyCounselor · Mental HealthBehavioral Health & Social Service Providers
Taxonomy Code101YM0800X
627 BROADWAY STE 200, Massapequa, NY 11758
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Other Providers at the Same Location NPPES 5

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

ISLAND LIGHTHOUSE CONSULTATION SERVICES, NP IN PSYCHIATRY, P.C.
Nurse Practitioner (Psychiatric/Mental Health)
627 BROADWAY STE 200
MASSAPEQUA, NY 11758
Nassau County (516) 399-0797
DIBIASE COUNSELING LCSW, P.C.
Social Worker (Clinical)
627 BROADWAY STE 200
MASSAPEQUA, NY 11758
Nassau County (516) 308-1078
HAMMAD MOHSIN PSYCHIATRY PC
Psychiatry & Neurology (Psychiatry)
627 BROADWAY STE 200
MASSAPEQUA, NY 11758
Nassau County (516) 400-3926
DR. JUDITH BARBARA ROSENBLUM PH.D.
Psychologist (Clinical)
627 BROADWAY STE 200
MASSAPEQUA, NY 11758
Nassau County (516) 409-8495
DR. GREGORY DANIEL HAGGERTY PH.D.
Psychologist (Clinical)
627 BROADWAY STE 200
MASSAPEQUA, NY 11758
Nassau County (516) 551-8655

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 Sydney Dreyfus's NPI number?

The NPI number for Sydney Dreyfus is 1700782406. It was assigned to this individual provider in the NPPES registry on October 19, 2026.

Where is Sydney Dreyfus located?

Sydney Dreyfus practices at 627 Broadway Ste 200, Massapequa, NY 11758. The listed phone number is (516) 308-1078.

What is Sydney Dreyfus's specialty?

The primary specialty registered for this NPI is Counselor, specializing in Mental Health, with taxonomy code 101YM0800X.

When was this NPI record last updated?

The NPPES record for Sydney Dreyfus was last updated on October 19, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 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.