1. Home
  2. Directory
  3. New York
  4. New York New York
  5. Clinic Center
  6. NPI Profile

ALEX M. GREENBERG, DDS PC
NPI 1689837130
Clinic/Center - Oral and Maxillofacial Surgery in New York, NY

Active since July 04, 2008
18 E 48TH ST, SUITE 1702, NEW YORK, NY 10017(212) 319-9700(212) 319-9778 Get Directions Write a Review

NPPES record last updated: July 4, 2008. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Alex M. Greenberg, Dds Pc NPPES

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

ALEX M. GREENBERG, DDS PC (NPI 1689837130) is a healthcare organization registered as an oral and maxillofacial surgery in New York, New York and active in the NPI registry since July 2008. The organization lists Alex Michael Greenberg, President, as its authorized official.

NPPES Registry Identity

NPI1689837130
Entity TypeOrganization
Primary Taxonomy261QS0112X
Legal Business NameALEX M. GREENBERG, DDS PC
Location Address18 E 48TH ST, SUITE 1702New York, NY 10017-1014
Mailing Address18 E 48th St, Suite 1702New York, NY 10017-1014 · (212) 319-9700 · Fax (212) 319-9778
Phone(212) 319-9700
Fax(212) 319-9778
Organization SubpartNo
Authorized OfficialAlex Michael GreenbergPresident · (212) 319-9700
Enumeration DateJuly 4, 2008
✔ NPI 1689837130 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyClinic/Center · Oral and Maxillofacial SurgeryAmbulatory Health Care Facilities
Taxonomy Code261QS0112X
License✔ Licensed in NY · 037545
Definition
An oral and maxillofacial surgery clinic or center specialized in the diagnosis, surgical and adjunctive treatment of diseases, injuries and defects involving both the functional and esthetic aspects of the hard and soft tissues of the oral and maxillofacial region.
18 E 48TH ST, New York, NY 10017
Open in Google Maps ↗

Other Identifiers 1

Medicare UPINT49983NY

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Alex M. Greenberg, Dds Pc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

Medicare enrollment records show 1 clinician reassigns Medicare billing to Alex M. Greenberg, DDS PC, which bills Medicare for the services this clinician delivers.

Clinician (1)

Alex Greenberg, D.D.S.
Oral Surgery
NPI 1811052285
30 E 60TH ST SUITE 1504
New York, NY 10022
(212) 319-9700
✔ PECOS0.7 mi

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

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 Alex M. Greenberg, Dds PC's NPI number?

The NPI number for Alex M. Greenberg, Dds PC is 1689837130. It was assigned to this organization in the NPPES registry on July 4, 2008.

Where is Alex M. Greenberg, Dds PC located?

Alex M. Greenberg, Dds PC is located at 18 E 48th St Suite 1702, New York, NY 10017. The listed phone number is (212) 319-9700.

What is Alex M. Greenberg, Dds PC's specialty?

The primary specialty registered for this NPI is Clinic/Center, specializing in Oral and Maxillofacial Surgery, with taxonomy code 261QS0112X.

Is Alex M. Greenberg, Dds PC enrolled in Medicare?

Yes. Alex M. Greenberg, Dds PC is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Alex M. Greenberg, Dds PC?

According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Oral Surgery) reassigns their Medicare billing to Alex M. Greenberg, Dds PC. A reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for the clinician's services. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

When was this NPI record last updated?

The NPPES record for Alex M. Greenberg, Dds PC was last updated on July 4, 2008. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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.