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MS. MELISSA LOPEZ MD
NPI 1730640632
Obstetrics & Gynecology in Orange, CA

Active since March 26, 2019PECOS EnrolledAccepts Medicare Assignment
333 CITY BLVD W STE 1400, ORANGE, CA 92868(714) 456-8224(714) 456-8360 Get Directions Write a Review

NPPES record last updated: October 11, 2023. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Ms. Melissa Lopez Md NPPES

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

MS. MELISSA LOPEZ MD (NPI 1730640632) is an individual obstetrics & gynecology provider in Orange, California, licensed in California (A181895) and active in the NPI registry since March 2019. She is enrolled in Medicare PECOS and is a graduate of Other (2019).

NPPES Registry Identity

NPI1730640632
Entity TypeIndividualFemale
Primary Taxonomy207V00000X
Provider Legal NameMS. MELISSA LOPEZCredential: MD
Location Address333 CITY BLVD W STE 1400Orange, CA 92868-5900
Mailing Address333 City Blvd W Ste 1400Orange, CA 92868-5900 · (714) 456-8224 · Fax (714) 456-8360
Phone(714) 456-8224
Fax(714) 456-8360
Sole ProprietorNo
Medical School CMSOtherGraduated 2019
Enumeration DateMarch 26, 2019
Last NPPES UpdateOctober 11, 2023
NPPES CertifiedOctober 11, 2023
✔ NPI 1730640632 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyObstetrics & GynecologyAllopathic & Osteopathic Physicians
Taxonomy Code207V00000X
License✔ Licensed in CA · A181895
Definition
An obstetrician/gynecologist possesses special knowledge, skills and professional capability in the medical and surgical care of the female reproductive system and associated disorders. This physician serves as a consultant to other physicians and as a primary physician for women.
Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X
333 CITY BLVD W STE 1400, Orange, CA 92868
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 and accepts Medicare assignment

Ms. Melissa Lopez Md 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 ID3779984430
PECOS Enrollment IDI20231010000310
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

3

Medicare enrollment records show Melissa Lopez reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Regents Of The University Of California
0.2 mi
Obstetrics & Gynecology
101 CITY DRIVE SOUTH, BLDG 56 SUITE 800
Orange, CA 92868
  • Reassigned Medicare billing, California enrollment
  • 149 clinicians in this Medicare group
NPI 1356304034 (714) 456-6431
University Of California Irvine
2.9 mi
Federally Qualified Health Center (FQHC)
800 N MAIN ST
Santa Ana, CA 92701
  • Reassigned Medicare billing, California enrollment
  • 255 clinicians in this Medicare group
NPI 1851325906 (714) 456-6785
Magella Medical Group, Inc.
17 mi
Maternal & Fetal Medicine
2888 LONG BEACH BLVD STE 400
Long Beach, CA 90806
  • Reassigned Medicare billing, California enrollment
  • 191 clinicians in this Medicare group
NPI 1376640086 (562) 997-8510

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

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.

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
23 services16 patients

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.

New Patient
$142.39 typical visit price
range $62.96 – $187.60
Typical copayment $35.59 (range $15.74 – $46.90)
Most-billed visit code 99204
Established Patient
$77.96 typical visit price
range $20.84 – $153.61
Typical copayment $19.49 (range $5.21 – $38.40)
Most-billed visit code 99213
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 8

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

MICHELLE SOCORRO BONDERO MD
Radiology (Diagnostic Radiology)
333 CITY BLVD W STE 1400
ORANGE, CA 92868
Orange County (714) 456-8224
GRISELDA ARLENE REYES MD
Obstetrics & Gynecology (Obstetrics)
333 CITY BLVD W STE 1400
ORANGE, CA 92868
Orange County (714) 456-8224
DR. REBECCA MIA SAUER M.D.
Obstetrics & Gynecology
333 CITY BLVD W STE 1400
ORANGE, CA 92868
Orange County (714) 456-2911
KRISTEN BUONO M.D.
Obstetrics & Gynecology (Urogynecology and Reconstructive Pelvic Surgery)
333 CITY BLVD W STE 1400
ORANGE, CA 92868
Orange County (619) 339-6630
ANNA CORNELIUS-SCHECTER
Student in an Organized Health Care Education/Training Program
333 CITY BLVD W STE 1400
ORANGE, CA 92868
Orange County (714) 456-8224
ISABEL NATALIA DEL CANTO MD
Student in an Organized Health Care Education/Training Program
333 CITY BLVD W STE 1400
ORANGE, CA 92868
Orange County (714) 456-8224
DR. ALICE SHERMAN-BROWN MD
Obstetrics & Gynecology (Maternal & Fetal Medicine)
333 CITY BLVD W STE 1400
ORANGE, CA 92868
Orange County (714) 456-8224
PRIYA PATEL
Student in an Organized Health Care Education/Training Program
333 CITY BLVD W STE 1400
ORANGE, CA 92868
Orange County (714) 456-8824

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 Lopez's NPI number?

The NPI number for Melissa Lopez is 1730640632. It was assigned to this individual provider in the NPPES registry on March 26, 2019.

Where is Melissa Lopez located?

Melissa Lopez practices at 333 City Blvd W Ste 1400, Orange, CA 92868. The listed phone number is (714) 456-8224.

What is Melissa Lopez's specialty?

The primary specialty registered for this NPI is Obstetrics & Gynecology with taxonomy code 207V00000X.

Is Melissa Lopez enrolled in Medicare?

Yes. Melissa Lopez 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 Melissa Lopez's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Melissa Lopez reassigns Medicare benefits to 3 organizations: Regents Of The University Of California (Orange, CA), University Of California Irvine (Santa Ana, CA) and Magella Medical Group, Inc. (Long Beach, 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 Melissa Lopez'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 Melissa Lopez was last updated on October 11, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.