Frank Castillo , NP
Nurse Practitioner • Walnut Creek, CA
Professional Overview & Biography Verified Profile Summary
Frank Castillo, NP is a certified Nurse Practitioner practicing in Walnut Creek, CA. With approximately 10 years of clinical experience since completing medical education in 2016, Frank Castillo delivers high-quality medical care to the local community at 100 N WIGET LN STE 290.
Frank Castillo is affiliated with John Muir Physician Network and accepts Medicare assignment.
Practice Location & Contact Primary Location
100 N Wiget Ln Ste 290
Walnut Creek, CA 945985901
Medicare Profile & Education
Other
2016
✓ Accepts Assignment
In-Person Only
Specialty Benchmarks & Practice Insights
Comparative analytics for Nurse Practitioner in Walnut Creek, CA
Practicing in Walnut Creek, CA (8378 Statewide)
In-Person Office Visits Only
Under CMS Medicare Fee Schedule vs Standard Submitted Charges
Clinical Seniority & Experience Comparison
Medical Specialties & State Licenses
CMS Verified: 2025-09-22NUCC Taxonomy Code: 363L00000X
(1) A registered nurse provider with a graduate degree in nursing prepared for advanced practice involving independent and interdependent decision making and direct accountability for clinical judgment across the health care continuum or in a certified specialty. (2) A registered nurse who has completed additional training beyond basic nursing education and who provides primary health care services in accordance with state nurse practice laws or statutes. Tasks performed by nurse practitioners vary with practice requirements mandated by geographic, political, economic, and social factors. Nurse practitioner specialists include, but are not limited to, family nurse practitioners, gerontological nurse practitioners, pediatric nurse practitioners, obstetric-gynecologic nurse practitioners, and school nurse practitioners.
NUCC Taxonomy Code: 363LA2100X
Definition to come...
Hospital & Practice Group Affiliations
John Muir Physician Network
100 N Wiget Ln, Walnut Creek, CA 945985901
Phone: 9259377740
Practice Associates & Co-Workers
Healthcare professionals and specialists practicing at this location or sharing practice phone/fax
Urology
Doctor of Medicine (M.D.)
Nurse Practitioner
Urology
Doctor of Medicine (M.D.)
Nurse Practitioner
Nurse Practitioner
Obstetrics & Gynecology - Female Pelvic Medicine and Reconstructive Surgery
Obstetrics & Gynecology - Female Pelvic Medicine and Reconstructive Surgery
Doctor of Medicine (M.D.)
Career & Practice History Timeline
Chronological log of verified NPI updates, location relocations, credentials, and registry changes
Registered at 100 N WIGET LN STE 290, WALNUT CREEK, CA 945985901 (Tel: 9259377740)
Registered at 1450 TREAT BLVD STE 300, WALNUT CREEK, CA 945972168 (Tel: 9259522828)
Registered at 300 PASTEUR DR, STANFORD, CA 943052200 (Tel: 6507234000)
Registered at 300 PASTEUR DR, STANFORD, CA 943052200 (Tel: 6507234000)
NPI status registered as active in NPPES database
Registered at 1411 E 31ST ST, OAKLAND, CA 946021018 (Tel: 5104374547)
Registered at 1411 E 31ST ST, OAKLAND, CA 946021018
Recorded as FRANK CASTILLO, NP
Nurse Practitioner (License #95004634 in CA)
First registered as active Individual Practitioner in NPPES Database.
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NPI Administrative Meta
Mailing Address
1450 Treat Blvd Ste 300
Walnut Creek, CA 945972168
Phone: 9259522828
This directory listing is for informational purposes only and does not constitute medical advice, diagnosis, or physician endorsement. If you are experiencing a medical emergency, please call 911 immediately.