Mount Sinai School of Medicine
NPI 1356818553 · Gastroenterology Physician · Oceanside, NY
Mount Sinai School of Medicine is a Gastroenterology Physician organization in Oceanside, NY (NPI 1356818553).
Provider details
- NPI number
- 1356818553
- Entity type
- Organization
- Primary specialty
- Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Alicia Gresham, Vp Network Operations(212) 659-9038
Specialties & taxonomies
Allopathic & Osteopathic Physicians
- Internal Medicine Physician207R00000X
Allopathic & Osteopathic Physicians
- Nurse Practitioner363L00000X
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
7 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
2 documented practice locations
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
Other names (DBA / former)
- Other name
- Mount Sinai Marathon Medical - Gastroenterology
Additional practice locations (1)
- 1 Healthy WayOceanside, NY 11572-1551Phone: (516) 992-5626
Registry dates
- Enumerated
- 2018-10-26
- Last updated
- 2019-01-11
Frequently asked questions
- What is Mount Sinai School of Medicine's NPI number?
- Mount Sinai School of Medicine's National Provider Identifier (NPI) is 1356818553, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Mount Sinai School of Medicine?
- Mount Sinai School of Medicine is classified in the NPPES registry as Gastroenterology Physician (Allopathic & Osteopathic Physicians).
- Where is Mount Sinai School of Medicine located?
- Mount Sinai School of Medicine's practice location on file with NPPES is 2965 Long Beach Rd, Oceanside, NY 11572-3255.
- What is Mount Sinai School of Medicine's phone number?
- The practice phone number listed in the NPPES registry for Mount Sinai School of Medicine is (516) 992-5626.
- Who is the authorized official for Mount Sinai School of Medicine?
- The authorized official listed on Mount Sinai School of Medicine's NPPES record is Alicia Gresham, Vp Network Operations. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Mount Sinai School of Medicine's NPI active?
- Yes — Mount Sinai School of Medicine's NPI (1356818553) is active in the NPPES registry as of the last update on 2019-01-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.