Gary S Rosenbaum MD PC
NPI 1346559192 · Infectious Disease Physician · Riverhead, NY
Enrolled with Medicare as Part B Supplier - Clinic/Group Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Gary S Rosenbaum MD PC is a Infectious Disease Physician organization in Riverhead, NY (NPI 1346559192).
Provider details
- NPI number
- 1346559192
- Entity type
- Organization
- Primary specialty
- Infectious Disease PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Sharyn Donnelly, Office Administrator(631) 727-6122
- License
- 1735421 (NY)
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
15 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
- 2010-09-28
- Last updated
- 2010-09-28
Frequently asked questions
- What is Gary S Rosenbaum MD PC's NPI number?
- Gary S Rosenbaum MD PC's National Provider Identifier (NPI) is 1346559192, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Gary S Rosenbaum MD PC?
- Gary S Rosenbaum MD PC is classified in the NPPES registry as Infectious Disease Physician (Allopathic & Osteopathic Physicians).
- Where is Gary S Rosenbaum MD PC located?
- Gary S Rosenbaum MD PC's practice location on file with NPPES is 887 Old Country Rd, Riverhead, NY 11901-2115.
- What is Gary S Rosenbaum MD PC's phone number?
- The practice phone number listed in the NPPES registry for Gary S Rosenbaum MD PC is (631) 727-6122.
- Does Gary S Rosenbaum MD PC accept Medicare?
- Gary S Rosenbaum 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 Gary S Rosenbaum MD PC?
- The authorized official listed on Gary S Rosenbaum MD PC's NPPES record is Sharyn Donnelly, Office Administrator. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Gary S Rosenbaum MD PC's NPI active?
- Yes — Gary S Rosenbaum MD PC's NPI (1346559192) is active in the NPPES registry as of the last update on 2010-09-28.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.