DR. WILLIAM MICHAEL HASSAN DDS
NPI 1164551792
Dentist - General Practice in Mayfield, NY

Q: What is William Hassan's NPI number?

The NPI number for William Hassan is 1164551792. It was assigned to this individual provider in the NPPES registry on March 2, 2007.

Q: What is William Hassan's specialty?

The primary specialty registered for this NPI is Dentist, specializing in General Practice, with taxonomy code 1223G0001X.

Q: When was this NPI record last updated?

The NPPES record for William Hassan was last updated on July 8, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.

Active since March 02, 2007

2540 STATE HIGHWAY 30, MAYFIELD, NY 12117(518) 661-6405(518) 661-7765 Get Directions Write a Review

NPPES record last updated: July 8, 2007. Verified against the NPPES registry weekly; last sync: August 02, 2026.

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About Dr. William Michael Hassan Dds NPPES

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

DR. WILLIAM MICHAEL HASSAN DDS (NPI 1164551792) is an individual general practice provider in Mayfield, New York, licensed in New York (0400541) and active in the NPI registry since March 2007.

NPPES Registry Identity

NPI1164551792

Entity TypeIndividualMale

Primary Taxonomy1223G0001X

Provider Legal NameDR. WILLIAM MICHAEL HASSANCredential: DDS

Location Address2540 STATE HIGHWAY 30Mayfield, NY 12117

Mailing AddressPo Box KMayfield, NY 12117 · (518) 661-6405 · Fax (518) 661-7765

Phone(518) 661-6405

Fax(518) 661-7765

Sole ProprietorNo

Enumeration DateMarch 2, 2007

Last NPPES UpdateJuly 8, 2007

✔ NPI 1164551792 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyDentist · General PracticeDental Providers

Taxonomy Code1223G0001X

License✔ Licensed in NY · 0400541

Definition

A general dentist is the primary dental care provider for patients of all ages. The general dentist is responsible for the diagnosis, treatment, management and overall coordination of services related to patients' oral health needs.

2540 STATE HIGHWAY 30, Mayfield, NY 12117

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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.

MAYFIELD FAMILY & COSMETIC DENTISTRY LLC

Clinic/Center (Dental)

2540 STATE HIGHWAY 30
MAYFIELD, NY 12117

Fulton County (518) 661-6405

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 William Hassan's NPI number?

The NPI number for William Hassan is 1164551792. It was assigned to this individual provider in the NPPES registry on March 2, 2007.

Where is William Hassan located?

William Hassan practices at 2540 State Highway 30, Mayfield, NY 12117. The listed phone number is (518) 661-6405.

What is William Hassan's specialty?

The primary specialty registered for this NPI is Dentist, specializing in General Practice, with taxonomy code 1223G0001X.

When was this NPI record last updated?

The NPPES record for William Hassan was last updated on July 8, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.