DR. OFELIA G ORTIZ MD
NPI 1780611509
Obstetrics & Gynecology - Gynecology in Fremont, CA
About Dr. Ofelia G Ortiz Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. OFELIA G ORTIZ MD (NPI 1780611509) is an individual gynecology provider in Fremont, California, licensed in California (C142634) and active in the NPI registry since June 2006. She is enrolled in Medicare PECOS, maintains a secondary practice location in San Jose, and is a graduate of Other (1996).
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Location 1
Other Identifiers 2
Accepted Insurance
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
Dr. Ofelia G Ortiz 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
3Medicare enrollment records show Ofelia Ortiz reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Fremont, CA 94538
- Reassigned Medicare billing, California enrollment
- 127 clinicians in this Medicare group
Winton, CA 95388
- Reassigned Medicare billing, California enrollment
- 18 clinicians in this Medicare group
Newark, NJ 07104
- Reassigned Medicare billing, New Jersey enrollment
- 172 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 94538 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.
FREMONT, CA 94538
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 Ofelia Ortiz's NPI number?
The NPI number for Ofelia Ortiz is 1780611509. It was assigned to this individual provider in the NPPES registry on June 27, 2006.
Where is Ofelia Ortiz located?
Ofelia Ortiz practices at 1999 Mowry Ave, Fremont, CA 94538. The listed phone number is (510) 770-8040.
What is Ofelia Ortiz's specialty?
The primary specialty registered for this NPI is Obstetrics & Gynecology, specializing in Gynecology, with taxonomy code 207VG0400X.
Is Ofelia Ortiz enrolled in Medicare?
Yes. Ofelia Ortiz 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 Ofelia Ortiz's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Ofelia Ortiz reassigns Medicare benefits to 3 organizations: Bay Area Community Health (Fremont, CA), Castle Family Health Centers Inc. (Winton, CA) and Newark Community Health Centers, Inc. (Newark, NJ). 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 Ofelia Ortiz's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Ofelia Ortiz accept?
Health plans from Oscar Health list Ofelia Ortiz as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
When was this NPI record last updated?
The NPPES record for Ofelia Ortiz was last updated on October 22, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 days 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.
# Dr. Ofelia G Ortiz, MD · NPI 1780611509
Gynecology physician in Fremont, California. Individual provider, active in the CMS NPPES registry since June 27, 2006.
## Identity
- **NPI:** 1780611509 (Entity type: Individual)
- **Enumerated:** June 27, 2006
- **Primary specialty:** Obstetrics & Gynecology - Gynecology · taxonomy 207VG0400X
- **State license:** C142634 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 1999 MOWRY AVE, Fremont, CA 94538-1738
- **Phone:** (510) 770-8040 · **Fax:** (510) 770-8141
## 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:** 3 organizations under Medicare reassignment (form CMS-855R): Bay Area Community Health (NPI 1184791998, Fremont, CA); Castle Family Health Centers Inc. (NPI 1447281746, Winton, CA); Newark Community Health Centers, Inc. (NPI 1740345693, Newark, NJ) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 1996
## Record status
- **NPPES last updated:** October 22, 2026
- **Other identifiers:** Medicaid 0067369 (NJ); Medicaid 02150874 (NY)
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Source: [NPI Profile](https://npiprofile.com/npi/1780611509) · Data from the CMS NPPES public registry.