MRS. MELISSA A GREGG NP
NPI 1255054490
Nurse Practitioner - Family in Costa Mesa, CA

Active since September 22, 2022PECOS EnrolledAccepts Medicare Assignment
78.65/100
CMS Quality Rating
1150 BAKER ST, COSTA MESA, CA 92626(866) 389-2727 Get Directions Write a Review

NPPES record last updated: September 22, 2022. Verified against the NPPES registry weekly; last sync: July 26, 2026.

About Mrs. Melissa A Gregg Np NPPES

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

MRS. MELISSA A GREGG NP (NPI 1255054490) is an individual family provider in Costa Mesa, California, licensed in California (95019125) and active in the NPI registry since September 2022. She is enrolled in Medicare PECOS and is a graduate of University Of California, San Francisco School Of Medicine (2018).

NPPES Registry Identity

NPI1255054490
Entity TypeIndividualFemale
Primary Taxonomy363LF0000X
Provider Legal NameMRS. MELISSA A GREGGCredential: NP
Location Address1150 BAKER STCosta Mesa, CA 92626-4111
Mailing Address2847 Alta Laguna BlvdLaguna Beach, CA 92651-2083 · (408) 205-8739
Sole ProprietorYes
Medical School CMSUniversity Of California, San Francisco School Of MedicineGraduated 2018
Enumeration DateSeptember 22, 2022
NPPES CertifiedSeptember 16, 2022
NPI 1255054490 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 · 95019125
1150 BAKER ST, Costa Mesa, CA 92626

Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

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

Mrs. Melissa A Gregg Np 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 ID2961870050
PECOS Enrollment IDI20221121002805
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 92626 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.

78.65/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality66.95
Improvement Activities40
Cost89.44

Other Providers at the Same Location NPPES 13

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

Pharmacist
1150 BAKER ST
COSTA MESA, CA 92626
Pharmacist
1150 BAKER ST
COSTA MESA, CA 92626
Nurse Practitioner (Family)
1150 BAKER ST
COSTA MESA, CA 92626
Registered Nurse
1150 BAKER ST
COSTA MESA, CA 92626
Nurse Practitioner (Family)
1150 BAKER ST
COSTA MESA, CA 92626
Nurse Practitioner (Family)
1150 BAKER ST
COSTA MESA, CA 92626
Nurse Practitioner (Family)
1150 BAKER ST
COSTA MESA, CA 92626
Nurse Practitioner (Family)
1150 BAKER ST
COSTA MESA, CA 92626

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 Gregg's NPI number?

The NPI number for Melissa Gregg is 1255054490. It was assigned to this individual provider in the NPPES registry on September 22, 2022.

Where is Melissa Gregg located?

Melissa Gregg practices at 1150 Baker St, Costa Mesa, CA 92626. The listed phone number is (866) 389-2727.

What is Melissa Gregg's specialty?

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

Is Melissa Gregg enrolled in Medicare?

Yes. Melissa Gregg 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 Gregg was last updated on September 22, 2022. NPI Profile syncs with the weekly NPPES data releases published by CMS.