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

Rebecca Ann Willenborg, MSN, FNP

Individual provider Family Nurse Practitioner · NPI 1861653800

Rebecca Ann Willenborg, MSN, FNP is a Nurse Practitioner in Roseville, California. Qualified in 1999, 27 years ago. Practices with Sutter Valley Medical Foundation, a 2,464-clinician group and accepts Medicare assignment. Licensed in California.

Years since qualifying
27
Licensed in
CA
In the registry since
2008
Specialties on file
2
What do these letters mean?
MSN — Master of Science in Nursing
A graduate nursing degree, usually held alongside an advanced practice licence.
FNP — Family Nurse Practitioner
A nurse practitioner who treats patients of all ages, much like a family doctor.

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Practice location Address checks out

3 Medical Plaza Dr Ste 260
Roseville, CA 95661-3087 Not confirmed with CMS for 11 years — call before visiting
Phone: (916) 733-7977
Fax: (916) 733-7979
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Obstetrics & Gynecology Nurse Practitioner (primary) Taxonomy 363LX0001X · Licence NP11414 (CA)
Family Nurse Practitioner Taxonomy 363LF0000X · Licence NPF11414 (CA)

Record details

NPI number1861653800
Entity typeIndividual (Type 1)
GenderFemale
Credentials MSN , FNP
Sole proprietorNo
NPI enumeratedJune 23, 2008
Last updated in NPPESJuly 24, 2015

Medicare enrollment

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

Medicare specialtyNURSE PRACTITIONER
Medical schoolOTHER
Graduated 1999 (27 years in practice)
Group practice Sutter Valley Medical Foundation — 2464 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
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 patients92
Services billed 887 a service is one billed item, such as a visit, a test or a procedure
Average patient age70

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.

Colleagues at Sutter Valley Medical Foundation

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 2464 clinicians in the practice; 12 are shown here.

Other providers in Roseville