Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Alexandra Courtney Close, NP

Individual provider Nurse Practitioner · NPI 1912686684

Alexandra Courtney Close, NP is a Nurse Practitioner in Greenbrae, California. Qualified in 2023, 3 years ago. Practices with New York University, a 5,884-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in California and New York.

Years since qualifying
3
Licensed in
CA, NY
In the registry since
2023
Specialties on file
2
What do these letters mean?
NP — Nurse Practitioner
An advanced practice nurse who can diagnose, treat and in most states prescribe.

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Practice location Address checks out

900 S Eliseo Dr Ste 201
Greenbrae, CA 94904-2153
Phone: (415) 461-1780
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 900 S Eliseo Dr Ste 201, Greenbrae, CA 94904-2153 — (415) 461-1780

Specialties & licences

Nurse Practitioner (primary) Taxonomy 363L00000X · Licence NP95039514 (CA)
Family Nurse Practitioner Taxonomy 363LF0000X · Licence 352463 (NY)

Record details

NPI number1912686684
Entity typeIndividual (Type 1)
GenderFemale
Credentials NP
Sole proprietorNo
NPI enumeratedJuly 11, 2023
Last updated in NPPESJuly 1, 2026
Certification dateJuly 1, 2026

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyNURSE PRACTITIONER
Medical schoolOTHER
Graduated 2023 (3 years in practice)
Group practice New York University — 5884 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients119
Services billed 227 a service is one billed item, such as a visit, a test or a procedure
Average patient age74

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at New York University

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 5884 clinicians in the practice; 12 are shown here.

Other providers in Greenbrae