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

MR. DEAN C MARSHALL EMT
NPI 1457275430
Emergency Medical Technician, Basic in Mount Sinai, NY

Q: What is Dean Marshall's NPI number?

The NPI number for Dean Marshall is 1457275430. It was assigned to this individual provider in the NPPES registry on August 4, 2026.

Q: What is Dean Marshall's specialty?

The primary specialty registered for this NPI is Emergency Medical Technician, Basic with taxonomy code 146N00000X.

Q: When was this NPI record last updated?

The NPPES record for Dean Marshall was last updated on August 4, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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.

Active since August 04, 2026

25 CRYSTAL BROOK HOLLOW RD, MOUNT SINAI, NY 11766(631) 473-2519 Get Directions Write a Review

NPPES record added: August 4, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

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About Mr. Dean C Marshall Emt NPPES

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

MR. DEAN C MARSHALL EMT (NPI 1457275430) is an individual emergency medical technician, basic provider in Mount Sinai, New York, licensed in New York (438740) and active in the NPI registry since August 2026.

NPPES Registry Identity

NPI1457275430

Entity TypeIndividualMale

Primary Taxonomy146N00000X

Provider Legal NameMR. DEAN C MARSHALLCredential: EMT

Location Address25 CRYSTAL BROOK HOLLOW RDMount Sinai, NY 11766-1612

Mailing Address25 Crystal Brook Hollow RdMount Sinai, NY 11766-1612 · (631) 473-2519

Phone(631) 473-2519

Sole ProprietorNo

Enumeration DateAugust 4, 2026

NPPES CertifiedAugust 4, 2026

✔ NPI 1457275430 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyEmergency Medical Technician, BasicEmergency Medical Service Providers

Taxonomy Code146N00000X

License✔ Licensed in NY · 438740

Definition

A Basic EMT is an individual trained and certified to perform basic life support treatment in medical emergencies based on individual state boards.

25 CRYSTAL BROOK HOLLOW RD, Mount Sinai, NY 11766

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Other Providers at the Same Location NPPES

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

PORT JEFFERSON VOLUNTEER AMBULANCE INC

Ambulance

25 CRYSTAL BROOK HOLLOW RD
MOUNT SINAI, NY 11766

Suffolk County (631) 473-2519

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 Dean Marshall's NPI number?

The NPI number for Dean Marshall is 1457275430. It was assigned to this individual provider in the NPPES registry on August 4, 2026.

Where is Dean Marshall located?

Dean Marshall practices at 25 Crystal Brook Hollow Rd, Mount Sinai, NY 11766. The listed phone number is (631) 473-2519.

What is Dean Marshall's specialty?

The primary specialty registered for this NPI is Emergency Medical Technician, Basic with taxonomy code 146N00000X.

When was this NPI record last updated?

The NPPES record for Dean Marshall was last updated on August 4, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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.