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

Melissa Anne Winkelhaus, NP

Individual provider Nurse Practitioner · NPI 1609557149

Melissa Anne Winkelhaus, NP is a Nurse Practitioner in Napa, California. Licensed in California. Registered with an NPI since 2023.

Licensed in
CA
In the registry since
2023
What do these letters mean?
NP — Nurse Practitioner
An advanced practice nurse who can diagnose, treat and in most states prescribe.

See every abbreviation used in this directory →

Practice location Address checks out

2160 Jefferson St Ste 260
Napa, CA 94559-1252
Phone: (707) 259-0700
Show map & directions

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

Specialties & licences

Nurse Practitioner (primary) Taxonomy 363L00000X · Licence 95026050 (CA)

Record details

NPI number1609557149
Entity typeIndividual (Type 1)
GenderFemale
Credentials NP
Sole proprietorNo
NPI enumeratedJuly 27, 2023
Last updated in NPPESJune 25, 2026
Certification dateJune 25, 2026

Other providers in Napa