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MARISA HERNANDEZ DESILVA APN
NPI 1083815229
Nurse Practitioner - Family in Fountain Valley, Ca, CA

Active since May 29, 2007PECOS Enrolled
76.74/100
CMS Quality Rating
17360 BROOKHURST STREET, ATTN: WHOLE LIFE DEPARTMENT, FOUNTAIN VALLEY, CA, CA 92708(657) 241-3450(714) 689-4327 Get Directions Write a Review

NPPES record last updated: June 29, 2021. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Jun 29, 2021, Mar 12, 2021 (2 updates tracked since 2021).

About Marisa Hernandez Desilva Apn NPPES

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

MARISA HERNANDEZ DESILVA APN (NPI 1083815229) is an individual family provider in Fountain Valley, Ca, California, licensed in California (NP 17493) and active in the NPI registry since May 2007. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1083815229
Entity TypeIndividualFemale
Primary Taxonomy363LF0000X
Provider Legal NameMARISA HERNANDEZ DESILVACredential: APN
Location Address17360 BROOKHURST STREET, ATTN: WHOLE LIFE DEPARTMENTFountain Valley, Ca, CA 92708
Mailing Address17360 Brookhurst Street, Attn: Whole Life DepartmentFountain Valley, CA 92708 · (657) 241-3450 · Fax (714) 689-4327
Phone(657) 241-3450
Fax(714) 689-4327
Sole ProprietorNo
Enumeration DateMay 29, 2007
Last NPPES UpdateJune 29, 20212 updates tracked since enumeration
NPPES CertifiedJune 29, 2021
✔ NPI 1083815229 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse Practitioner · FamilyPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LF0000X
License✔ Licensed in CA · NP 17493
17360 BROOKHURST STREET, Fountain Valley, Ca, CA 92708
Open in Google Maps ↗

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Marisa Hernandez Desilva Apn 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 Reassignments

2

Medicare enrollment records show Marisa Desilva reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Memorialcare Medical Foundation
0.1 mi
Clinic/Center
17360 BROOKHURST ST
Fountain Valley, CA 92708
  • Reassigned Medicare billing, California enrollment
  • 948 clinicians in this Medicare group
NPI 1205167350 (877) 696-3622
Access Alliance Medical Group, Inc
35 mi
Primary Care
644 W BROADWAY STE 114
Glendale, CA 91204
  • Reassigned Medicare billing, California enrollment
  • 13 clinicians in this Medicare group
NPI 1629534045 (323) 899-4988

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 92708 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
$96.36 typical visit price
range $62.96 – $187.60
Typical copayment $24.09 (range $15.74 – $46.90)
Most-billed visit code 99203
Established Patient
$109.96 typical visit price
range $20.84 – $153.61
Typical copayment $27.49 (range $5.21 – $38.40)
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.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

76.74/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality80.94
Promoting Interoperability78
Improvement Activities40
Cost55.12

Other Providers at the Same Location NPPES 15

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

SHEILA PHUONG NGUYEN MD
Internal Medicine
17360 BROOKHURST STREET
FOUNTAIN VALLEY, CA 92708
Orange County (714) 665-1797
DIANA PHAM
Marriage & Family Therapist
17360 BROOKHURST STREET
FOUNTAIN VALLEY, CA 92708
Orange County (909) 387-7200
DR. BILLY LE D.O.
Hospitalist
17360 BROOKHURST STREET, ATTN: CREDENTIALING DEPARTMENT
FOUNTAIN VALLEY, CA 92708
Orange County (714) 797-1797
MR. RICHARD COLLIN CHO MD
Internal Medicine
17360 BROOKHURST STREET, ATTN: CREDENTIALING DEPARTMENT
FOUNTAIN VALLEY, CA 92708
Orange County (949) 923-3200
NATHAN KWONG MD
Internal Medicine
17360 BROOKHURST STREET
FOUNTAIN VALLEY, CA 92708
Orange County (714) 665-1797
MONICA SAMEH HANNA D.O.
Internal Medicine
17360 BROOKHURST STREET
FOUNTAIN VALLEY, CA 92708
Orange County (877) 844-0012
JESSICA VO M.D.
Internal Medicine
17360 BROOKHURST STREET
FOUNTAIN VALLEY, CA 92708
Orange County (877) 844-0012
IVAN RUDENKO MD
Internal Medicine
17360 BROOKHURST STREET
FOUNTAIN VALLEY, CA 92708
Orange County (714) 665-1797

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 Marisa Desilva's NPI number?

The NPI number for Marisa Desilva is 1083815229. It was assigned to this individual provider in the NPPES registry on May 29, 2007.

Where is Marisa Desilva located?

Marisa Desilva practices at 17360 Brookhurst Street Attn: Whole Life Department, Fountain Valley, Ca, CA 92708. The listed phone number is (657) 241-3450.

What is Marisa Desilva's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.

Is Marisa Desilva enrolled in Medicare?

Yes. Marisa Desilva is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Marisa Desilva's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Marisa Desilva reassigns Medicare benefits to 2 organizations: Memorialcare Medical Foundation (Fountain Valley, CA) and Access Alliance Medical Group, Inc (Glendale, CA). Each 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 Marisa Desilva'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 Marisa Desilva was last updated on June 29, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 years 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.