Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

DR. GARY MARK KLEIN D.D.S.
NPI 1205804234
Dentist - General Practice in Shirley, NY

Q: What is Gary Klein's NPI number?

The NPI number for Gary Klein is 1205804234. It was assigned to this individual provider in the NPPES registry on March 8, 2006.

Q: What is Gary Klein'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 Gary Klein was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 40 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 March 08, 2006

59 SURREY CIR, SHIRLEY, NY 11967(631) 281-1234(631) 281-1071 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 16, 2026.

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About Dr. Gary Mark Klein D.d.s. NPPES

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

DR. GARY MARK KLEIN D.D.S. (NPI 1205804234) is an individual general practice provider in Shirley, New York, licensed in New York (26232) and active in the NPI registry since March 2006.

NPPES Registry Identity

NPI1205804234

Entity TypeIndividualMale

Primary Taxonomy1223G0001X

Provider Legal NameDR. GARY MARK KLEINCredential: D.D.S.

Location Address59 SURREY CIRShirley, NY 11967-2577

Mailing Address59 Surrey CirShirley, NY 11967-2577 · (631) 281-1234 · Fax (631) 281-1071

Phone(631) 281-1234

Fax(631) 281-1071

Sole ProprietorNo

Enumeration DateMarch 8, 2006

Last NPPES UpdateJuly 13, 2026

✔ NPI 1205804234 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 · 26232

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.

59 SURREY CIR, Shirley, NY 11967

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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 Gary Klein's NPI number?

The NPI number for Gary Klein is 1205804234. It was assigned to this individual provider in the NPPES registry on March 8, 2006.

Where is Gary Klein located?

Gary Klein practices at 59 Surrey Cir, Shirley, NY 11967. The listed phone number is (631) 281-1234.

What is Gary Klein'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 Gary Klein was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 40 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.