Keith a Siller MD PC
NPI 1366944688 · Neurology Physician · Manhasset, NY
Enrolled with Medicare as Part B Supplier - Clinic/Group Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Keith a Siller MD PC is a Neurology Physician organization in Manhasset, NY (NPI 1366944688).
Provider details
- NPI number
- 1366944688
- Entity type
- Organization
- Primary specialty
- Neurology PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Keith Siller, Authorized Official(646) 413-3148
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
8 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
- 2018-03-02
- Last updated
- 2025-12-23
- Certified
- 2025-12-23
Frequently asked questions
- What is Keith a Siller MD PC's NPI number?
- Keith a Siller MD PC's National Provider Identifier (NPI) is 1366944688, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Keith a Siller MD PC?
- Keith a Siller MD PC is classified in the NPPES registry as Neurology Physician (Allopathic & Osteopathic Physicians).
- Where is Keith a Siller MD PC located?
- Keith a Siller MD PC's practice location on file with NPPES is 1615 Northern Blvd Ste 105, Manhasset, NY 11030-3033.
- What is Keith a Siller MD PC's phone number?
- The practice phone number listed in the NPPES registry for Keith a Siller MD PC is (516) 415-0514.
- Does Keith a Siller MD PC accept Medicare?
- Keith a Siller MD 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 Keith a Siller MD PC?
- The authorized official listed on Keith a Siller MD PC's NPPES record is Keith Siller, Authorized Official. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Keith a Siller MD PC's NPI active?
- Yes — Keith a Siller MD PC's NPI (1366944688) is active in the NPPES registry as of the last update on 2025-12-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.