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

MS. Leah Danielle Warner, FNP

Individual provider Family Nurse Practitioner · NPI 1629385794

MS. Leah Danielle Warner, FNP is a Nurse Practitioner in San Francisco, California. Qualified in 2010, 16 years ago. Practices with City and County of San Francisco, a 369-clinician group, accepts Medicare assignment and offers telehealth. Licensed in California.

Years since qualifying
16
Licensed in
CA
In the registry since
2010
What do these letters mean?
FNP — Family Nurse Practitioner
A nurse practitioner who treats patients of all ages, much like a family doctor.

See every abbreviation used in this directory →

Claim this listing Report a problem Suggest an edit

Practice location Address checks out

1748 Market St
San Francisco, CA 94102-5800 Not confirmed with CMS for 13 years — call before visiting
Phone: (415) 565-7667
Fax: (415) 252-7512
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Family Nurse Practitioner (primary) Taxonomy 363LF0000X · Licence 20242 (CA)

Record details

NPI number1629385794
Entity typeIndividual (Type 1)
GenderFemale
Credentials FNP
Sole proprietorYes
NPI enumeratedSeptember 9, 2010
Last updated in NPPESApril 24, 2013

Medicare enrollment

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

Medicare specialtyNURSE PRACTITIONER
Medical schoolOTHER
Graduated 2010 (16 years in practice)
Group practice City And County Of San Francisco — 369 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations2 on file with Medicare

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 patients58
Services billed 142 a service is one billed item, such as a visit, a test or a procedure
Average patient age57

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 City and County of San Francisco

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 369 clinicians in the practice; 12 are shown here.

Other providers in San Francisco