MELISSA RENEE WALKER AGACNP-BC
NPI 1285582700
Nurse Practitioner - Acute Care in Marysville, CA

Q: What is Melissa Walker's NPI number?

The NPI number for Melissa Walker is 1285582700. It was assigned to this individual provider in the NPPES registry on March 19, 2026. The provider is also known as Melissa Gallo.

Q: What is Melissa Walker's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Acute Care, with taxonomy code 363LA2100X.

Q: When was this NPI record last updated?

The NPPES record for Melissa Walker was last updated on August 4, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.

Active since March 19, 2026PECOS EnrolledAccepts Medicare Assignment

726 4TH ST, MARYSVILLE, CA 95901(530) 749-4652(530) 749-4365 Get Directions Write a Review

NPPES record last updated: August 4, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Aug 4, 2026, Mar 19, 2026 (2 updates tracked since 2026).

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About Melissa Renee Walker Agacnp-bc NPPES

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

MELISSA RENEE WALKER AGACNP-BC (NPI 1285582700) is an individual acute care provider in Marysville, California, licensed in California (95039062) and active in the NPI registry since March 2026. She is enrolled in Medicare PECOS and is a graduate of Other (2025).

NPPES Registry Identity

NPI1285582700

Entity TypeIndividualFemale

Primary Taxonomy363LA2100X

Provider Legal NameMELISSA RENEE WALKERCredential: AGACNP-BC

Location Address726 4TH STMarysville, CA 95901-5656

Mailing Address726 4th StMarysville, CA 95901-5656 · (530) 749-4652 · Fax (530) 749-4365

Phone(530) 749-4652

Fax(530) 749-4365

Sole ProprietorNo

Medical School CMSOtherGraduated 2025

Enumeration DateMarch 19, 2026

Last NPPES UpdateAugust 4, 20262 updates tracked since enumeration

NPPES CertifiedAugust 4, 2026

✔ NPI 1285582700 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse Practitioner · Acute CarePhysician Assistants & Advanced Practice Nursing Providers

Taxonomy Code363LA2100X

License✔ Licensed in CA · 95039062

726 4TH ST, Marysville, CA 95901

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Other Names 1

Other Name (5)Melissa Gallo

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Melissa Renee Walker Agacnp-bc is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID8527531607

PECOS Enrollment IDI20260622001417

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 Walker reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Galen Inpatient Physicians, PC

Same address

Hospitalist

726 4TH ST
Marysville, CA 95901

Reassigned Medicare billing, California enrollment
962 clinicians in this Medicare group

NPI 1558023911 (530) 749-4300

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 95901 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

$90.32 typical visit price

range $58.87 – $176.60

Typical copayment $22.58 (range $14.71 – $44.15)

Most-billed visit code 99203

Established Patient

$103.36 typical visit price

range $19.28 – $144.60

Typical copayment $25.84 (range $4.82 – $36.15)

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 20

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

ELAINE HOILE

Physical Therapist