Ari Mermelstein, MD
NPI 1972355238 · Student in an Organized Health Care Education/Training Program · Valhalla, NY
Ari Mermelstein, MD is a Student in an Organized Health Care Education/Training Program provider in Valhalla, NY (NPI 1972355238).
Provider details
- NPI number
- 1972355238
- Entity type
- Individual
- Primary specialty
- Student in an Organized Health Care Education/Training ProgramStudent, Health Care
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
Specialties & taxonomies
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
2 yrs in NPPES registry
- Profile completeness38% of score
83% 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
- 2024-04-02
- Last updated
- 2024-04-02
- Certified
- 2024-04-02
Frequently asked questions
- What is Ari Mermelstein's NPI number?
- Ari Mermelstein's National Provider Identifier (NPI) is 1972355238, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ari Mermelstein's specialty?
- Ari Mermelstein is listed in the NPPES registry with a primary specialty of Student in an Organized Health Care Education/Training Program (Student, Health Care).
- Where is Ari Mermelstein located?
- Ari Mermelstein's practice location on file with NPPES is 100 Woods Rd, Valhalla, NY 10595-1530.
- What is Ari Mermelstein's phone number?
- The practice phone number listed in the NPPES registry for Ari Mermelstein is (917) 514-5109.
- Is Ari Mermelstein's NPI active?
- Yes — Ari Mermelstein's NPI (1972355238) is active in the NPPES registry as of the last update on 2024-04-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.