1. Home
  2. Directory
  3. California
  4. Vista
  5. Nurse Practitioner
  6. NPI Profile

CLARISSE MACKAY FNP-C
NPI 1235992736
Nurse Practitioner in Vista, CA

Active since February 06, 2024PECOS Enrolled
380 S MELROSE DR STE 415, VISTA, CA 92081(877) 267-8861 Get Directions Write a Review

NPPES record last updated: April 2, 2024. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Apr 2, 2024, Feb 6, 2024 (2 updates tracked since 2024).

About Clarisse Mackay Fnp-c NPPES

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

CLARISSE MACKAY FNP-C (NPI 1235992736) is an individual nurse practitioner in Vista, California, licensed in California (95028806) and active in the NPI registry since February 2024. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1235992736
Entity TypeIndividualFemale
Primary Taxonomy363L00000X
Provider Legal NameCLARISSE MACKAYCredential: FNP-C
Location Address380 S MELROSE DR STE 415Vista, CA 92081-6655
Mailing AddressPo Box 3346Cypress, CA 90630-7346
Phone(877) 267-8861
Sole ProprietorYes
Enumeration DateFebruary 6, 2024
Last NPPES UpdateApril 2, 20242 updates tracked since enumeration
NPPES CertifiedApril 2, 2024
✔ NPI 1235992736 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 · 95028806
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.
380 S MELROSE DR STE 415, Vista, CA 92081
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)

Clarisse Mackay Fnp-c 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 Clarisse Mackay reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

California Wound Healing Medical Group Inc.
81 mi
Surgical
100 E HUNTINGTON DR STE 209
Alhambra, CA 91801
  • Reassigned Medicare billing, California enrollment
  • 50 clinicians in this Medicare group
NPI 1235333972 (323) 264-7796

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 92081 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
$94.87 typical visit price
range $62.10 – $184.71
Typical copayment $23.71 (range $15.52 – $46.17)
Most-billed visit code 99203
Established Patient
$108.42 typical visit price
range $20.62 – $151.42
Typical copayment $27.10 (range $5.15 – $37.85)
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 3

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

STERLIE CLAIRE AGORRILLA RAGONESE FNP-BC
Nurse Practitioner (Family)
380 S MELROSE DR STE 415
VISTA, CA 92081
San Diego County (760) 536-3083
TIMOTHY ROYER
Nurse Practitioner (Family)
380 S MELROSE DR STE 415
VISTA, CA 92081
San Diego County (760) 832-0301
GRETCHEN ORDONEZ DE AUSEN SANTOS MSN, NP-C
Nurse Practitioner
380 S MELROSE DR STE 415
VISTA, CA 92081
San Diego County (626) 765-4321

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 Clarisse Mackay's NPI number?

The NPI number for Clarisse Mackay is 1235992736. It was assigned to this individual provider in the NPPES registry on February 6, 2024.

Where is Clarisse Mackay located?

Clarisse Mackay practices at 380 S Melrose Dr Ste 415, Vista, CA 92081. The listed phone number is (877) 267-8861.

What is Clarisse Mackay's specialty?

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

Is Clarisse Mackay enrolled in Medicare?

Yes. Clarisse Mackay is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Clarisse Mackay's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Clarisse Mackay reassigns Medicare benefits to California Wound Healing Medical Group Inc. (Alhambra, 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 Clarisse Mackay'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 Clarisse Mackay was last updated on April 2, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.