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

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

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: August 23, 2026.

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

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
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

Other Names 1

Other Name (5)Melissa Gallo

Medicare Participation & PECOS CMS

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

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.

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.

Physical Therapist
726 4TH ST
MARYSVILLE, CA 95901
Emergency Medicine
726 4TH ST
MARYSVILLE, CA 95901
Nurse Anesthetist, Certified Registered
726 4TH ST
MARYSVILLE, CA 95901
Nurse Anesthetist, Certified Registered
726 4TH ST
MARYSVILLE, CA 95901
Speech-Language Pathologist
726 4TH ST
MARYSVILLE, CA 95901
Emergency Medicine
726 4TH ST
MARYSVILLE, CA 95901
Speech-Language Pathologist
726 4TH ST
MARYSVILLE, CA 95901
Registered Nurse (Registered Nurse First Assistant)
726 4TH ST
MARYSVILLE, CA 95901

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 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.

Where is Melissa Walker located?

Melissa Walker practices at 726 4th St, Marysville, CA 95901. The listed phone number is (530) 749-4652.

What is Melissa Walker's specialty?

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

Is Melissa Walker enrolled in Medicare?

Yes. Melissa Walker is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

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 24 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.