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CASSIDY DEERKOSKI
NPI 1083454516
Counselor - Mental Health in Holbrook, NY

Active since May 31, 2024
1022 MAIN ST, HOLBROOK, NY 11741(631) 559-4198 Get Directions Write a Review

NPPES record last updated: April 28, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Apr 28, 2026, Jan 24, 2026 (2 updates tracked since 2026).

About Cassidy Deerkoski NPPES

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

CASSIDY DEERKOSKI (NPI 1083454516) is an individual mental health provider in Holbrook, New York and active in the NPI registry since May 2024. She maintains a secondary practice location in Stony Brook.

NPPES Registry Identity

NPI1083454516
Entity TypeIndividualFemale
Primary Taxonomy101YM0800X
Provider Legal NameCASSIDY DEERKOSKI
Location Address1022 MAIN STHolbrook, NY 11741-1622
Mailing Address1022 Main StHolbrook, NY 11741-1622
Phone(631) 559-4198
Sole ProprietorYes
Enumeration DateMay 31, 2024
Last NPPES UpdateApril 28, 20262 updates tracked since enumeration
NPPES CertifiedApril 28, 2026
✔ NPI 1083454516 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyCounselor · Mental HealthBehavioral Health & Social Service Providers
Taxonomy Code101YM0800X
1022 MAIN ST, Holbrook, NY 11741
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Secondary Practice Location 1

Location 1207 Hallock Rd Ste 202Stony Brook, NY 11790-3033 · Phone (631) 559-4198

Other Providers at the Same Location NPPES 2

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

SAMANTHA CONTI
Social Worker (Clinical)
1022 MAIN ST
HOLBROOK, NY 11741
Suffolk County (516) 690-4531
WAVES PSYCHOTHERAPY GROUP LCSW P.C.
Social Worker (Clinical)
1022 MAIN ST
HOLBROOK, NY 11741
Suffolk County (516) 690-4531

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 Cassidy Deerkoski's NPI number?

The NPI number for Cassidy Deerkoski is 1083454516. It was assigned to this individual provider in the NPPES registry on May 31, 2024.

Where is Cassidy Deerkoski located?

Cassidy Deerkoski practices at 1022 Main St, Holbrook, NY 11741. The listed phone number is (631) 559-4198.

What is Cassidy Deerkoski'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 Cassidy Deerkoski was last updated on April 28, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 months 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.