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DR. FRED WILLIAM MARCUS D.O.
NPI 1710123963
Family Medicine - Addiction Medicine in Syosset, NY

Active since December 17, 2008
770 JERICHO TPKE, SYOSSET, NY 11791(516) 496-2049(516) 496-2049 Get Directions Write a Review

NPPES record last updated: December 17, 2008. Verified against the NPPES registry weekly; last sync: August 16, 2026.

About Dr. Fred William Marcus D.o. NPPES

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

DR. FRED WILLIAM MARCUS D.O. (NPI 1710123963) is an individual addiction medicine provider in Syosset, New York, licensed in New York (132700) and active in the NPI registry since December 2008.

NPPES Registry Identity

NPI1710123963
Entity TypeIndividualMale
Primary Taxonomy207QA0401X
Provider Legal NameDR. FRED WILLIAM MARCUSCredential: D.O.
Location Address770 JERICHO TPKESyosset, NY 11791-4516
Mailing Address770 Jericho TpkeSyosset, NY 11791-4516 · (516) 496-2049 · Fax (516) 496-2049
Phone(516) 496-2049
Fax(516) 496-2049
Sole ProprietorYes
Enumeration DateDecember 17, 2008
✔ NPI 1710123963 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyFamily Medicine · Addiction MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207QA0401X
License✔ Licensed in NY · 132700
Definition
A family medicine physician who specializes in the diagnosis and treatment of addictions.
770 JERICHO TPKE, Syosset, NY 11791
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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 Fred Marcus's NPI number?

The NPI number for Fred Marcus is 1710123963. It was assigned to this individual provider in the NPPES registry on December 17, 2008.

Where is Fred Marcus located?

Fred Marcus practices at 770 Jericho Tpke, Syosset, NY 11791. The listed phone number is (516) 496-2049.

What is Fred Marcus's specialty?

The primary specialty registered for this NPI is Family Medicine, specializing in Addiction Medicine, with taxonomy code 207QA0401X.

When was this NPI record last updated?

The NPPES record for Fred Marcus was last updated on December 17, 2008. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 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.