Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Michael Guido III, M.D.

Neurology Physician in East Setauket, NY · enumerated 2006 · practices at North Shore Hematology Oncology Associates.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1477594034

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Registry record

Entity type Individual (Type 1)

Name Dr. Michael Guido III

Credential M.D.

Sex Male

Practice address 181 N Belle Mead Rd, East Setauket, NY, 11733

Phone (631) 444-2599

Enumeration date Jun 8, 2006

Last updated in NPPES Apr 13, 2022

Taxonomy & licenses

2084N0600X Clinical Neurophysiology Physician Allopathic & Osteopathic Physicians · License 222674 (NY) Secondary

2084V0102X Vascular Neurology Physician Allopathic & Osteopathic Physicians · License 222674 (NY) Secondary

2084N0400X Neurology Physician Allopathic & Osteopathic Physicians · License 222674 (NY) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier	Type	State	Issuer
02410162	Medicaid	NY	-
2M3732	Other	NY	EMPIRE BC/BS
7224450	Other	NY	AETNA

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

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Frequently asked questions

How do I verify Michael Guido's NPI record?

Cross-check NPI 1477594034 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1477594034 active?

Yes, as of the latest NPPES snapshot, NPI 1477594034 is active (record last updated 2022-04-13).

Other providers at this practice address

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Martin Silverstein Radiation Oncology Physician · E Setauket, NY NPI 1952306391 Joseph Cirrone Radiation Oncology Physician · East Setauket, NY NPI 1023013117 Marcia Tonnesen Dermatology Physician · East Setauket, NY NPI 1205883238 Wojciech Kucharski Physician Assistant · East Setauket, NY NPI 1437106523 Bruce Meinhard Orthopaedic Surgery Physician · East Setauket, NY NPI 1750338943 Richard Clark Dermatology Physician · East Setauket, NY NPI 1700825429 Leonard Kristal Pediatric Dermatology Physician · East Setauket, NY NPI 1871533810 Lorraine Danowski Registered Dietitian · East Setauket, NY NPI 1043251085

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-04-13.