JOANNA ORTEGA MD, MPH
NPI 1811504533
Emergency Medicine in San Francisco, CA
About Joanna Ortega Md, Mph NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
JOANNA ORTEGA MD, MPH (NPI 1811504533) is an individual emergency medicine provider in San Francisco, California, licensed in California (A191189) and active in the NPI registry since September 2020. She is enrolled in Medicare PECOS, maintains 2 additional practice locations, and is a graduate of Other (2022).
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Locations 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
Joanna Ortega Md, Mph 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
5Medicare enrollment records show Joanna Ortega reassigns Medicare billing to 5 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
San Francisco, CA 94122
- Reassigned Medicare billing, California enrollment
- 5,544 clinicians in this Medicare group
San Francisco, CA 94143
- Reassigned Medicare billing, California enrollment
- 5,645 clinicians in this Medicare group
San Francisco, CA 94110
- Reassigned Medicare billing, California enrollment
- 842 clinicians in this Medicare group
Castro Valley, CA 94546
- Reassigned Medicare billing, California enrollment
- 43 clinicians in this Medicare group
Ukiah, CA 95482
- Reassigned Medicare billing, California enrollment
- 112 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 94143 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.
SAN FRANCISCO, CA 94143
SAN FRANCISCO, CA 94143
SAN FRANCISCO, CA 94143
SAN FRANCISCO, CA 94143
SAN FRANCISCO, CA 94143
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 Joanna Ortega's NPI number?
The NPI number for Joanna Ortega is 1811504533. It was assigned to this individual provider in the NPPES registry on September 27, 2020.
Where is Joanna Ortega located?
Joanna Ortega practices at 505 Parnassus Ave, San Francisco, CA 94143. The listed phone number is (415) 353-1238.
What is Joanna Ortega's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Joanna Ortega enrolled in Medicare?
Yes. Joanna Ortega 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 Joanna Ortega's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Joanna Ortega reassigns Medicare benefits to 5 organizations: Ucsf Medical Group Business Services (San Francisco, CA), University Of California San Francisco (San Francisco, CA), University Of California Sfgh Medical Group (San Francisco, CA), Eden Emergency Medical Group Inc (Castro Valley, CA) and Pacific Redwood Medical Group Inc (Ukiah, 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 Joanna Ortega'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 Joanna Ortega was last updated on July 22, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.
# Joanna Ortega, MD, MPH · NPI 1811504533
Emergency Medicine physician in San Francisco, California. Individual provider, active in the CMS NPPES registry since September 27, 2020.
## Identity
- **NPI:** 1811504533 (Entity type: Individual)
- **Enumerated:** September 27, 2020
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** A191189 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 505 PARNASSUS AVE, San Francisco, CA 94143-2204
- **Phone:** (415) 353-1238
## 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:** 5 organizations under Medicare reassignment (form CMS-855R): Ucsf Medical Group Business Services (NPI 1477624104, San Francisco, CA); University Of California San Francisco (NPI 1164512851, San Francisco, CA); University Of California Sfgh Medical Group (NPI 1174598296, San Francisco, CA); Eden Emergency Medical Group Inc (NPI 1891786240, Castro Valley, CA); Pacific Redwood Medical Group Inc (NPI 1033103676, Ukiah, CA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2022
## Record status
- **NPPES last updated:** July 22, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1811504533) · Data from the CMS NPPES public registry.