Alex M. Greenberg, DDS PC
NPI 1689837130 · Oral and Maxillofacial Surgery Clinic/Center · New York, NY
Enrolled with Medicare as Part B Supplier - Clinic/Group Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Alex M. Greenberg, DDS PC is a Oral and Maxillofacial Surgery Clinic/Center organization in New York, NY (NPI 1689837130).
Provider details
- NPI number
- 1689837130
- Entity type
- Organization
- Primary specialty
- Oral and Maxillofacial Surgery Clinic/CenterAmbulatory Health Care Facilities
- Organization subpart
- No
- Authorized official
- Alex Greenberg, President(212) 319-9700
- License
- 037545 (NY)
Specialties & taxonomies
Ambulatory Health Care Facilities
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
18 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Registry dates
- Enumerated
- 2008-07-04
- Last updated
- 2008-07-04
Frequently asked questions
- What is Alex M. Greenberg, DDS PC's NPI number?
- Alex M. Greenberg, DDS PC's National Provider Identifier (NPI) is 1689837130, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Alex M. Greenberg, DDS PC?
- Alex M. Greenberg, DDS PC is classified in the NPPES registry as Oral and Maxillofacial Surgery Clinic/Center (Ambulatory Health Care Facilities).
- Where is Alex M. Greenberg, DDS PC located?
- Alex M. Greenberg, DDS PC's practice location on file with NPPES is 18 E 48th St, New York, NY 10017-1014.
- What is Alex M. Greenberg, DDS PC's phone number?
- The practice phone number listed in the NPPES registry for Alex M. Greenberg, DDS PC is (212) 319-9700.
- Does Alex M. Greenberg, DDS PC accept Medicare?
- Alex M. Greenberg, DDS PC is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Who is the authorized official for Alex M. Greenberg, DDS PC?
- The authorized official listed on Alex M. Greenberg, DDS PC's NPPES record is Alex Greenberg, President. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Alex M. Greenberg, DDS PC's NPI active?
- Yes — Alex M. Greenberg, DDS PC's NPI (1689837130) is active in the NPPES registry as of the last update on 2008-07-04.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.