Marcy Kupferstein
NPI 1366312589 · Physician Assistant · Brooklyn, NY
Marcy Kupferstein is a Physician Assistant provider in Brooklyn, NY (NPI 1366312589).
Provider details
- NPI number
- 1366312589
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Sex
- Female
- Sole proprietor
- Yes
- License
- 003331 (NY)
Specialties & taxonomies
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
Under 1 yr in 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
- 2025-11-11
- Last updated
- 2025-11-11
- Certified
- 2025-11-11
Frequently asked questions
- What is Marcy Kupferstein's NPI number?
- Marcy Kupferstein's National Provider Identifier (NPI) is 1366312589, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marcy Kupferstein's specialty?
- Marcy Kupferstein is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Marcy Kupferstein located?
- Marcy Kupferstein's practice location on file with NPPES is 1056 E 18th St, Brooklyn, NY 11230-4406.
- What is Marcy Kupferstein's phone number?
- The practice phone number listed in the NPPES registry for Marcy Kupferstein is (917) 365-7412.
- Is Marcy Kupferstein's NPI active?
- Yes — Marcy Kupferstein's NPI (1366312589) is active in the NPPES registry as of the last update on 2025-11-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.