GRISELDA ARLENE REYES MD
NPI 1073000980
Obstetrics & Gynecology - Obstetrics in Orange, CA

Active since April 16, 2018PECOS EnrolledAccepts Medicare Assignment
333 CITY BLVD W STE 1400, ORANGE, CA 92868(714) 456-8224 Get Directions Write a Review

NPPES record last updated: January 22, 2025. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Aug 16, 2022, Apr 16, 2018 (2 updates tracked since 2018).

About Griselda Arlene Reyes Md NPPES

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

GRISELDA ARLENE REYES MD (NPI 1073000980) is an individual obstetrics provider in Orange, California, licensed in California (A166988) and active in the NPI registry since April 2018. She is enrolled in Medicare PECOS and is a graduate of University Of California, San Francisco School Of Medicine (2018).

NPPES Registry Identity

NPI1073000980
Entity TypeIndividualFemale
Primary Taxonomy207VX0000X
Provider Legal NameGRISELDA ARLENE REYESCredential: MD
Location Address333 CITY BLVD W STE 1400Orange, CA 92868-5900
Mailing Address333 City Blvd W Ste 1400Orange, CA 92868-5900 · (714) 456-8224
Sole ProprietorNo
Medical School CMSUniversity Of California, San Francisco School Of MedicineGraduated 2018
Enumeration DateApril 16, 2018
Last NPPES UpdateJanuary 22, 20252 updates tracked since enumeration
NPPES CertifiedJanuary 22, 2025
✔ NPI 1073000980 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyObstetrics & Gynecology · ObstetricsAllopathic & Osteopathic Physicians
Taxonomy Code207VX0000X
License✔ Licensed in CA · A166988
Definition
A physician who specializes in diagnosis, treatment, and management of patients with obstetric conditions. Source: National Uniform Claim Committee
Also ListedObstetrics & GynecologyTaxonomy 207V00000X · License A166988 (CA)
333 CITY BLVD W STE 1400, Orange, CA 92868

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

Griselda Arlene Reyes 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 ID4082035399
PECOS Enrollment IDI20230303001037
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 Griselda Reyes reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Obstetrics & Gynecology
101 CITY DRIVE SOUTH, BLDG 56 SUITE 800
Orange, CA 92868
  • Reassigned Medicare billing, California enrollment
  • 149 clinicians in this Medicare group
Federally Qualified Health Center (FQHC)
800 N MAIN ST
Santa Ana, CA 92701
  • Reassigned Medicare billing, California enrollment
  • 255 clinicians in this Medicare group
Maternal & Fetal Medicine
2888 LONG BEACH BLVD STE 400
Long Beach, CA 90806
  • Reassigned Medicare billing, California enrollment
  • 191 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.

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.

Radiology (Diagnostic Radiology)
333 CITY BLVD W STE 1400
ORANGE, CA 92868
Obstetrics & Gynecology
333 CITY BLVD W STE 1400
ORANGE, CA 92868
Obstetrics & Gynecology (Urogynecology and Reconstructive Pelvic Surgery)
333 CITY BLVD W STE 1400
ORANGE, CA 92868
Student in an Organized Health Care Education/Training Program
333 CITY BLVD W STE 1400
ORANGE, CA 92868
Student in an Organized Health Care Education/Training Program
333 CITY BLVD W STE 1400
ORANGE, CA 92868
Obstetrics & Gynecology (Maternal & Fetal Medicine)
333 CITY BLVD W STE 1400
ORANGE, CA 92868
Obstetrics & Gynecology
333 CITY BLVD W STE 1400
ORANGE, CA 92868
Student in an Organized Health Care Education/Training Program
333 CITY BLVD W STE 1400
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 Griselda Reyes's NPI number?

The NPI number for Griselda Reyes is 1073000980. It was assigned to this individual provider in the NPPES registry on April 16, 2018.

Where is Griselda Reyes located?

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

What is Griselda Reyes's specialty?

The primary specialty registered for this NPI is Obstetrics & Gynecology, specializing in Obstetrics, with taxonomy code 207VX0000X.

Is Griselda Reyes enrolled in Medicare?

Yes. Griselda Reyes 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 Griselda Reyes's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Griselda Reyes 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 Griselda Reyes'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 Griselda Reyes was last updated on January 22, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 21 months 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.