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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 30 days.

JOANNA ORTEGA MD, MPH
NPI 1811504533
Emergency Medicine in San Francisco, CA

Active since September 27, 2020PECOS Enrolled
505 PARNASSUS AVE, SAN FRANCISCO, CA 94143(415) 353-1238 Get Directions Write a Review

NPPES record last updated: July 22, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Jul 22, 2026, Mar 13, 2026, Apr 9, 2025 and 1 more (4 updates tracked since 2020).

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

NPI1811504533
Entity TypeIndividualFemale
Primary Taxonomy207P00000X
Provider Legal NameJOANNA ORTEGACredential: MD, MPH
Location Address505 PARNASSUS AVESan Francisco, CA 94143-2204
Mailing Address8048 Greenridge Dr Apt 23Oakland, CA 94605-3759 · (510) 621-8833
Phone(415) 353-1238
Sole ProprietorNo
Medical School CMSOtherGraduated 2022
Enumeration DateSeptember 27, 2020
Last NPPES UpdateJuly 22, 20264 updates tracked since enumeration
NPPES CertifiedJuly 22, 2026
✔ NPI 1811504533 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyEmergency MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207P00000X
License✔ Licensed in CA · A191189
Definition
An emergency physician focuses on the immediate decision making and action necessary to prevent death or any further disability both in the pre-hospital setting by directing emergency medical technicians and in the emergency department. The emergency physician provides immediate recognition, evaluation, care, stabilization and disposition of a generally diversified population of adult and pediatric patients in response to acute illness and injury.
505 PARNASSUS AVE, San Francisco, CA 94143
Open in Google Maps ↗

Secondary Practice Locations 2

Location 11411 E 31st StOakland, CA 94602-1092 · Phone (510) 621-8833
Location 21001 Potrero Ave, Bldg. 25, 1st FloorSan Francisco, CA 94110-3518 · Phone (628) 206-8111 · Fax (628) 206-9038

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

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.

PECOS PAC ID3971012584
PECOS Enrollment IDI20250604002986
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.

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.

New Patient
$104.51 typical visit price
range $69.00 – $202.35
Typical copayment $26.12 (range $17.25 – $50.58)
Most-billed visit code 99203
Established Patient
$119.48 typical visit price
range $23.44 – $166.46
Typical copayment $29.87 (range $5.86 – $41.61)
Most-billed visit code 99214
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 20

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

CATHERINE RAMSDELL NNP
Nurse Practitioner (Neonatal)
505 PARNASSUS AVE
SAN FRANCISCO, CA 94143
San Francisco County (415) 353-1000
DR. CLAUDIO ANDRES BRAVO CARRILLO M.D.
Internal Medicine (Advanced Heart Failure and Transplant Cardiology)
505 PARNASSUS AVE
SAN FRANCISCO, CA 94143
San Francisco County (415) 502-4243
MAURICIO JALIFE BUCAY M.D
Hospitalist
505 PARNASSUS AVE
SAN FRANCISCO, CA 94143
San Francisco County (415) 750-4994
EMMA B SHAK M.D.
Student in an Organized Health Care Education/Training Program
505 PARNASSUS AVE
SAN FRANCISCO, CA 94143
San Francisco County (415) 476-1528
DR. ADRIANA A.T. MARTIN M.D., PH.D.
Internal Medicine
505 PARNASSUS AVE
SAN FRANCISCO, CA 94143
San Francisco County (415) 514-7288
WILLIAM JAMES DEARDORFF
Internal Medicine (Geriatric Medicine)
505 PARNASSUS AVE, 15 LONG
SAN FRANCISCO, CA 94143
San Francisco County (415) 406-1417
KEERTHANA REDDY BANALA
Student in an Organized Health Care Education/Training Program
505 PARNASSUS AVE
SAN FRANCISCO, CA 94143
San Francisco County (415) 514-7288
ROBERT CHRISTIAN WENZ
Nurse Anesthetist, Certified Registered
505 PARNASSUS AVE
SAN FRANCISCO, CA 94143
San Francisco County (415) 353-8054

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.

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 13 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.