Alexandra Karsos, NP
NPI 1215814991 · Adult Health Nurse Practitioner · New York, NY
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Alexandra Karsos, NP is a Adult Health Nurse Practitioner provider in New York, NY (NPI 1215814991).
Provider details
- NPI number
- 1215814991
- Entity type
- Individual
- Primary specialty
- Adult Health Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- NP
- Sex
- Female
- Sole proprietor
- No
- License
- 312421 (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
- 2025-08-16
- Last updated
- 2025-08-16
- Certified
- 2025-08-16
Frequently asked questions
- What is Alexandra Karsos's NPI number?
- Alexandra Karsos's National Provider Identifier (NPI) is 1215814991, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Alexandra Karsos's specialty?
- Alexandra Karsos is listed in the NPPES registry with a primary specialty of Adult Health Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Alexandra Karsos located?
- Alexandra Karsos's practice location on file with NPPES is 240 E 38th St, New York, NY 10016-2708.
- What is Alexandra Karsos's phone number?
- The practice phone number listed in the NPPES registry for Alexandra Karsos is (603) 721-2263.
- Does Alexandra Karsos accept Medicare?
- Alexandra Karsos is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Alexandra Karsos's NPI active?
- Yes — Alexandra Karsos's NPI (1215814991) is active in the NPPES registry as of the last update on 2025-08-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.