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

Diane Montefalcon Castignani, FNP

Individual provider Nurse Practitioner · NPI 1881132801

Diane Montefalcon Castignani, FNP is a Nurse Practitioner in San Jose, California. Qualified in 2016, 10 years ago. Practices with University Healthcare Alliance, a 332-clinician group, works from 3 locations, accepts Medicare assignment and offers telehealth. Licensed in California.

Years since qualifying
10
Licensed in
CA
In the registry since
2017
What do these letters mean?
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

798 S Winchester Blvd
San Jose, CA 95128-2928
Phone: (408) 984-7226
Fax: (408) 984-7225
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (2)

  • 15400 Los Gatos Blvd, Los Gatos, CA 95032-2502 — (408) 730-6200
  • 751 S Bascom Ave, San Jose, CA 95128-2604 — (408) 885-5000

Specialties & licences

Nurse Practitioner (primary) Taxonomy 363L00000X · Licence 95005831 (CA)

Record details

NPI number1881132801
Entity typeIndividual (Type 1)
GenderFemale
Credentials FNP
Sole proprietorNo
NPI enumeratedFebruary 9, 2017
Last updated in NPPESJuly 11, 2022
Certification dateJuly 11, 2022

Medicare enrollment

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

Medicare specialtyNURSE PRACTITIONER
Medical schoolOTHER
Graduated 2016 (10 years in practice)
Group practice University Healthcare Alliance — 332 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

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