GUILLERMO A GOMEZ MD
NPI 1659894673
Obstetrics & Gynecology in Los Angeles, CA
About Guillermo A Gomez Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
GUILLERMO A GOMEZ MD (NPI 1659894673) is an individual obstetrics & gynecology provider in Los Angeles, California, licensed in California (A151699) and active in the NPI registry since July 2017. He is enrolled in Medicare PECOS and is a graduate of Other (2016).
NPPES Registry Identity
Specialties & Licenses 2
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
Guillermo A Gomez 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.
Medicare Billing Reassignments
8Medicare enrollment records show Guillermo Gomez reassigns Medicare billing to 8 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Los Angeles, CA 90033
- Reassigned Medicare billing, California enrollment
- 139 clinicians in this Medicare group
Long Beach, CA 90806
- Reassigned Medicare billing, California enrollment
- 191 clinicians in this Medicare group
Corona, CA 92882
- Reassigned Medicare billing, California enrollment
- 24 clinicians in this Medicare group
Riverside, CA 92503
- Reassigned Medicare billing, California enrollment
- 10 clinicians in this Medicare group
Riverside, CA 92503
- Reassigned Medicare billing, California enrollment
- 28 clinicians in this Medicare group
Perris, CA 92570
- Reassigned Medicare billing, California enrollment
- 24 clinicians in this Medicare group
San Diego, CA 92123
- Reassigned Medicare billing, California enrollment
- 1,437 clinicians in this Medicare group
Greenville, SC 29607
- Reassigned Medicare billing, California enrollment
- Medicare enrollment name: Obhg California PC
- 711 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 90033 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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.
LOS ANGELES, CA 90033
LOS ANGELES, CA 90033
LOS ANGELES, CA 90033
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 Guillermo Gomez's NPI number?
The NPI number for Guillermo Gomez is 1659894673. It was assigned to this individual provider in the NPPES registry on July 21, 2017.
Where is Guillermo Gomez located?
Guillermo Gomez practices at 2051 Marengo St, Los Angeles, CA 90033. The listed phone number is (951) 233-2968.
What is Guillermo Gomez's specialty?
The primary specialty registered for this NPI is Obstetrics & Gynecology with taxonomy code 207V00000X.
Is Guillermo Gomez enrolled in Medicare?
Yes. Guillermo Gomez 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 Guillermo Gomez's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Guillermo Gomez reassigns Medicare benefits to 8 organizations: Adventist Health Physicians Network (Los Angeles, CA), Magella Medical Group, Inc. (Long Beach, CA), Alessandro Medical Professional Corporation (Corona, CA), Inland Empire Multispecialty Group PC (Riverside, CA), Javier R Rios MD, A Professional Corporation (Riverside, CA) and 3 more organizations, listed in the Medicare section above. 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 Guillermo Gomez'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 Guillermo Gomez was last updated on June 25, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.
# Guillermo A Gomez, MD · NPI 1659894673
Obstetrics & Gynecology physician in Los Angeles, California. Individual provider, active in the CMS NPPES registry since July 21, 2017.
## Identity
- **NPI:** 1659894673 (Entity type: Individual)
- **Enumerated:** July 21, 2017
- **Primary specialty:** Obstetrics & Gynecology · taxonomy 207V00000X
- **State license:** A151699 (California)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 2051 MARENGO ST, Los Angeles, CA 90033-1352
- **Phone:** (951) 233-2968
## 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:** 8 organizations under Medicare reassignment (form CMS-855R): Adventist Health Physicians Network (NPI 1679973267, Los Angeles, CA); Magella Medical Group, Inc. (NPI 1376640086, Long Beach, CA); Alessandro Medical Professional Corporation (NPI 1184265183, Corona, CA); Inland Empire Multispecialty Group PC (NPI 1770205130, Riverside, CA); Javier R Rios MD, A Professional Corporation (NPI 1235138363, Riverside, CA); and 3 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2016
## Record status
- **NPPES last updated:** June 25, 2020
---
Source: [NPI Profile](https://npiprofile.com/npi/1659894673) · Data from the CMS NPPES public registry.