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

MS. Sonja Irene Fontana, DNP, FNP

Individual provider Family Medicine Physician · NPI 1326232455

MS. Sonja Irene Fontana, DNP, FNP is a Family Medicine Physician in Visalia, California. Licensed in California. Registered with an NPI since 2007.

Licensed in
CA
In the registry since
2007
Specialties on file
4
What do these letters mean?
DNP — Doctor of Nursing Practice
The highest clinical degree in nursing.
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

1011 N Demaree St
Visalia, CA 93291-5156
Phone: (559) 734-6700
Fax: (559) 734-6705
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Family Nurse Practitioner (primary) Taxonomy 363LF0000X · Licence 11610 (CA)
Family Medicine Physician Taxonomy 207Q00000X · Licence 11610 (CA)
General Practice Registered Nurse Taxonomy 163WG0000X · Licence 450325 (CA)
Family Health Clinical Nurse Specialist Taxonomy 364SF0001X · Licence 450325 (CA)

Record details

NPI number1326232455
Entity typeIndividual (Type 1)
GenderFemale
Credentials DNP , FNP
Sole proprietorNo
NPI enumeratedAugust 31, 2007
Last updated in NPPESJuly 21, 2026
Certification dateJuly 21, 2026

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