OrganizationActive
Alex Keller, MD, Facs, PC
NPI 1689844755 · Specialist · Great Neck, NY
Alex Keller, MD, Facs, PC is a Specialist organization in Great Neck, NY (NPI 1689844755).
Provider details
- NPI number
- 1689844755
- Entity type
- Organization
- Primary specialty
- SpecialistOther Service Providers
- Organization subpart
- No
- Authorized official
- Nancy Kemper, Office Administrator(516) 482-1100
- License
- 130451 (NY)
Specialties & taxonomies
Other Service Providers
Profile Score
Detailed profile(88/100 index)
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
900 Northern Blvd
Great Neck, NY 11021-5302
Phone: (516) 482-1100
Fax: (516) 482-6328
Street-level locationGet directions
Mailing address
900 Northern Blvd
Great Neck, NY 11021-5302
Registry dates
- Enumerated
- 2008-03-05
- Last updated
- 2008-03-05
Frequently asked questions
- What is Alex Keller, MD, Facs, PC's NPI number?
- Alex Keller, MD, Facs, PC's National Provider Identifier (NPI) is 1689844755, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Alex Keller, MD, Facs, PC?
- Alex Keller, MD, Facs, PC is classified in the NPPES registry as Specialist (Other Service Providers).
- Where is Alex Keller, MD, Facs, PC located?
- Alex Keller, MD, Facs, PC's practice location on file with NPPES is 900 Northern Blvd, Great Neck, NY 11021-5302.
- What is Alex Keller, MD, Facs, PC's phone number?
- The practice phone number listed in the NPPES registry for Alex Keller, MD, Facs, PC is (516) 482-1100.
- Who is the authorized official for Alex Keller, MD, Facs, PC?
- The authorized official listed on Alex Keller, MD, Facs, PC's NPPES record is Nancy Kemper, Office Administrator. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Alex Keller, MD, Facs, PC's NPI active?
- Yes — Alex Keller, MD, Facs, PC's NPI (1689844755) is active in the NPPES registry as of the last update on 2008-03-05.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.