Eastern New York Medical Services PC
NPI 1831437599 · Internal Medicine Physician · Brewster, NY
Enrolled with Medicare as Part B Supplier - Clinic/Group Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Eastern New York Medical Services PC is a Internal Medicine Physician organization in Brewster, NY (NPI 1831437599).
Provider details
- NPI number
- 1831437599
- Entity type
- Organization
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Matthew Kessler, President(845) 279-7200
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
13 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
- 2013-01-30
- Last updated
- 2024-04-23
- Certified
- 2024-04-23
Frequently asked questions
- What is Eastern New York Medical Services PC's NPI number?
- Eastern New York Medical Services PC's National Provider Identifier (NPI) is 1831437599, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Eastern New York Medical Services PC?
- Eastern New York Medical Services PC is classified in the NPPES registry as Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Eastern New York Medical Services PC located?
- Eastern New York Medical Services PC's practice location on file with NPPES is 3423 Danbury Rd, Brewster, NY 10509-4513.
- What is Eastern New York Medical Services PC's phone number?
- The practice phone number listed in the NPPES registry for Eastern New York Medical Services PC is (845) 279-7200.
- Does Eastern New York Medical Services PC accept Medicare?
- Eastern New York Medical Services 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 Eastern New York Medical Services PC?
- The authorized official listed on Eastern New York Medical Services PC's NPPES record is Matthew Kessler, President. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Eastern New York Medical Services PC's NPI active?
- Yes — Eastern New York Medical Services PC's NPI (1831437599) is active in the NPPES registry as of the last update on 2024-04-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.