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

Sandy Martinez Guadan, FNP-BC

Individual provider Primary Care Nurse Practitioner · NPI 1639975162

Sandy Martinez Guadan, FNP-BC is a Nurse Practitioner in Coto de Caza, California. Qualified in 2024, 2 years ago. Practices with Onclick Healthcare Incorporated, a 63-clinician group, accepts Medicare assignment and offers telehealth. Licensed in California.

Years since qualifying
2
Licensed in
CA
In the registry since
2025
What do these letters mean?
FNP-BC — Family Nurse Practitioner, Board Certified
A family nurse practitioner certified by the ANCC.

See every abbreviation used in this directory →

Practice location Address checks out

30 Carnoustie Way
Coto de Caza, CA 92679-5025
Phone: (714) 454-7339
Show map & directions

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

Specialties & licences

Primary Care Nurse Practitioner (primary) Taxonomy 363LP2300X · Licence 95034088 (CA)

Record details

NPI number1639975162
Entity typeIndividual (Type 1)
GenderFemale
Credentials FNP-BC
Sole proprietorNo
NPI enumeratedFebruary 24, 2025
Last updated in NPPESFebruary 24, 2025
Certification dateFebruary 6, 2025

Medicare enrollment

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

Medicare specialtyNURSE PRACTITIONER
Medical schoolOTHER
Graduated 2024 (2 years in practice)
Group practice Onclick Healthcare Incorporated — 63 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services