Alexa Greenstein, NP
NPI 1528503000 · Family Nurse Practitioner · New York, NY
Alexa Greenstein, NP is a Family Nurse Practitioner provider in New York, NY (NPI 1528503000).
Provider details
- NPI number
- 1528503000
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- NP
- Sex
- Female
- Sole proprietor
- No
- License
- 26NJ00689700 (NJ)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
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
9 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
- 2016-12-20
- Last updated
- 2023-01-09
- Certified
- 2022-11-21
Frequently asked questions
- What is Alexa Greenstein's NPI number?
- Alexa Greenstein's National Provider Identifier (NPI) is 1528503000, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Alexa Greenstein's specialty?
- Alexa Greenstein is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Alexa Greenstein located?
- Alexa Greenstein's practice location on file with NPPES is 525 E 68th St # 99, New York, NY 10065-4870.
- What is Alexa Greenstein's phone number?
- The practice phone number listed in the NPPES registry for Alexa Greenstein is (646) 962-0110.
- Is Alexa Greenstein's NPI active?
- Yes — Alexa Greenstein's NPI (1528503000) is active in the NPPES registry as of the last update on 2023-01-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.