Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

MELISSA ANNE WINKELHAUS NP
NPI 1609557149
Nurse Practitioner in Napa, CA

Q: What is Melissa Winkelhaus's NPI number?

The NPI number for Melissa Winkelhaus is 1609557149. It was assigned to this individual provider in the NPPES registry on July 27, 2023. The provider is also known as Melissa Anne Winkelhaus.

Q: What is Melissa Winkelhaus's specialty?

The primary specialty registered for this NPI is Nurse Practitioner with taxonomy code 363L00000X.

Active since July 27, 2023PECOS Enrolled

2160 JEFFERSON ST STE 260, NAPA, CA 94559(707) 259-0700 Get Directions Write a Review

NPPES record last updated: June 25, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

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About Melissa Anne Winkelhaus Np NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MELISSA ANNE WINKELHAUS NP (NPI 1609557149) is an individual nurse practitioner in Napa, California, licensed in California (95026050) and active in the NPI registry since July 2023. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1609557149

Entity TypeIndividualFemale

Primary Taxonomy363L00000X

Provider Legal NameMELISSA ANNE WINKELHAUSCredential: NP

Location Address2160 JEFFERSON ST STE 260Napa, CA 94559-1252

Mailing Address2160 Jefferson St Ste 260Napa, CA 94559-1252 · (707) 259-0700

Phone(707) 259-0700

Sole ProprietorNo

Enumeration DateJuly 27, 2023

Last NPPES UpdateJune 25, 2026

NPPES CertifiedJune 25, 2026

✔ NPI 1609557149 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers

Taxonomy Code363L00000X

License✔ Licensed in CA · 95026050

Definition

(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.

2160 JEFFERSON ST STE 260, Napa, CA 94559

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Other Names 1

Former Name (1)Melissa Anne Winkelhaus

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Melissa Anne Winkelhaus Np is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94559 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$98.97 typical visit price

range $65.08 – $192.16

Typical copayment $24.74 (range $16.27 – $48.04)

Most-billed visit code 99203

Established Patient

$113.15 typical visit price

range $21.86 – $157.83

Typical copayment $28.28 (range $5.46 – $39.45)

Most-billed visit code 99214

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

LYRA FUMIKO RONQUILLO CHUA

Nurse Practitioner

2160 JEFFERSON ST STE 260
NAPA, CA 94559

Napa County (707) 259-0700

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Melissa Winkelhaus's NPI number?

The NPI number for Melissa Winkelhaus is 1609557149. It was assigned to this individual provider in the NPPES registry on July 27, 2023. The provider is also known as Melissa Anne Winkelhaus.

Where is Melissa Winkelhaus located?

Melissa Winkelhaus practices at 2160 Jefferson St Ste 260, Napa, CA 94559. The listed phone number is (707) 259-0700.

What is Melissa Winkelhaus's specialty?

The primary specialty registered for this NPI is Nurse Practitioner with taxonomy code 363L00000X.

Is Melissa Winkelhaus enrolled in Medicare?

Yes. Melissa Winkelhaus is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Melissa Winkelhaus was last updated on June 25, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 50 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.