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

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: November 01, 2026.

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, billing reassignment, and ordering and referring status from CMS.

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.

Medicare Billing Reassignment

Medicare enrollment records show Melissa Winkelhaus reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Santa Rosa Community Health Centers
25 mi
Federally Qualified Health Center (FQHC)
599 BELLEVUE AVE
Santa Rosa, CA 95407
  • Reassigned Medicare billing, California enrollment
  • 215 clinicians in this Medicare group
NPI 1871651273 (707) 528-5770

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

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.

Which organization bills Medicare for Melissa Winkelhaus's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Melissa Winkelhaus reassigns Medicare benefits to Santa Rosa Community Health Centers (Santa Rosa, CA). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Melissa Winkelhaus's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

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 4 months 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.