Advanced Internal Medicine Group PC
NPI 1669548087 · Internal Medicine Physician · Greenvale, NY
Enrolled with Medicare as Part B Supplier - Clinic/Group Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Advanced Internal Medicine Group PC is a Internal Medicine Physician organization in Greenvale, NY (NPI 1669548087).
Provider details
- NPI number
- 1669548087
- Entity type
- Organization
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Leon Schwechter, President(516) 352-8100
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 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
- 2006-11-28
- Last updated
- 2026-04-29
- Certified
- 2026-04-29
Frequently asked questions
- What is Advanced Internal Medicine Group PC's NPI number?
- Advanced Internal Medicine Group PC's National Provider Identifier (NPI) is 1669548087, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Advanced Internal Medicine Group PC?
- Advanced Internal Medicine Group PC is classified in the NPPES registry as Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Advanced Internal Medicine Group PC located?
- Advanced Internal Medicine Group PC's practice location on file with NPPES is 2200 Northern Blvd, Greenvale, NY 11548-1219.
- What is Advanced Internal Medicine Group PC's phone number?
- The practice phone number listed in the NPPES registry for Advanced Internal Medicine Group PC is (516) 352-8100.
- Does Advanced Internal Medicine Group PC accept Medicare?
- Advanced Internal Medicine Group 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 Advanced Internal Medicine Group PC?
- The authorized official listed on Advanced Internal Medicine Group PC's NPPES record is Leon Schwechter, President. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Advanced Internal Medicine Group PC's NPI active?
- Yes — Advanced Internal Medicine Group PC's NPI (1669548087) is active in the NPPES registry as of the last update on 2026-04-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.