Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Mr. Oscar Lleva III, FNP-BC

Individual provider Family Nurse Practitioner · NPI 1568856102

Mr. Oscar Lleva III, FNP-BC is a Nurse Practitioner in San Francisco, California. Qualified in 2014, 12 years ago. Practices with UCSF Medical Group Business Services, a 1,531-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in California, Georgia and New York.

Years since qualifying
12
Licensed in
CA, GA, NY
In the registry since
2015
Specialties on file
3
What do these letters mean?
FNP-BC — Family Nurse Practitioner, Board Certified
A family nurse practitioner certified by the ANCC.

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Practice location Address checks out

505 Parnassus Ave
San Francisco, CA 94143-2204
Phone: (415) 885-7528
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 550 Peachtree St Ne Ste 11, Atlanta, GA 30308-2247 — (404) 686-8802

Specialties & licences

Acute Care Nurse Practitioner (primary) Taxonomy 363LA2100X · Licence 95004319 (CA)
Family Nurse Practitioner Taxonomy 363LF0000X · Licence RN298621 (GA)
Family Nurse Practitioner Taxonomy 363LF0000X · Licence 339413 (NY)

Record details

NPI number1568856102
Entity typeIndividual (Type 1)
GenderMale
Credentials FNP-BC
Sole proprietorYes
NPI enumeratedMarch 21, 2015
Last updated in NPPESJune 3, 2025
Certification dateJune 3, 2025

Medicare enrollment

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

Medicare specialtyNURSE PRACTITIONER
Medical schoolOTHER
Graduated 2014 (12 years in practice)
Group practice Ucsf Medical Group Business Services — 1531 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations4 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 patients24
Services billed 31 a service is one billed item, such as a visit, a test or a procedure
Average patient age71

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 UCSF Medical Group Business Services

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 1531 clinicians in the practice; 12 are shown here.

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