MELANIE MARS N.P.
NPI 1023405537
Nurse Practitioner - Family in Orange, CA
About Melanie Mars N.p. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MELANIE MARS N.P. (NPI 1023405537) is an individual family provider in Orange, California, licensed in California (95001681) and active in the NPI registry since April 2015. She is enrolled in Medicare PECOS and is a graduate of Other (2014).
NPPES Registry Identity
Specialties & Licenses
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
Melanie Mars N.p. 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.
Medicare Billing Reassignments
2Medicare enrollment records show Melanie Mars reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Orange, CA 92868
- Reassigned Medicare billing, California enrollment
- 219 clinicians in this Medicare group
Lake Forest, CA 92630
- Reassigned Medicare billing, California enrollment
- 10 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 5
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 92868 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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.
Reported Quality Measures
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.
ORANGE, CA 92868
ORANGE, CA 92868
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 Melanie Mars's NPI number?
The NPI number for Melanie Mars is 1023405537. It was assigned to this individual provider in the NPPES registry on April 22, 2015.
Where is Melanie Mars located?
Melanie Mars practices at 333 City Blvd W Suite 640, Orange, CA 92868. The listed phone number is (714) 456-5239.
What is Melanie Mars's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.
Is Melanie Mars enrolled in Medicare?
Yes. Melanie Mars 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.
Which organizations bill Medicare for Melanie Mars's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Melanie Mars reassigns Medicare benefits to 2 organizations: Regents Of The University Of (Orange, CA) and Portola Medical Services PC (Lake Forest, 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 Melanie Mars'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 Melanie Mars was last updated on April 22, 2015. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 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.
# Melanie Mars, N.P. · NPI 1023405537
Family physician in Orange, California. Individual provider, active in the CMS NPPES registry since April 22, 2015.
## Identity
- **NPI:** 1023405537 (Entity type: Individual)
- **Enumerated:** April 22, 2015
- **Primary specialty:** Nurse Practitioner - Family · taxonomy 363LF0000X
- **State license:** 95001681 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 333 CITY BLVD W, SUITE 640, Orange, CA 92868-2903
- **Phone:** (714) 456-5239
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 2 organizations under Medicare reassignment (form CMS-855R): Regents Of The University Of (NPI 1154379394, Orange, CA); Portola Medical Services PC (NPI 1871962076, Lake Forest, CA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2014
## Record status
- **NPPES last updated:** April 22, 2015
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Source: [NPI Profile](https://npiprofile.com/npi/1023405537) · Data from the CMS NPPES public registry.