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VICTORIA GAH HAY WOO M.D.
NPI 1437415957
Obstetrics & Gynecology in San Francisco, CA

Active since April 10, 2012PECOS EnrolledAccepts Medicare Assignment
1001 POTRERO AVE # 6D, SAN FRANCISCO, CA 94110(415) 476-5192(415) 476-1811 Get Directions Write a Review

NPPES record last updated: December 17, 2021. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Victoria Gah Hay Woo M.d. NPPES

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

VICTORIA GAH HAY WOO M.D. (NPI 1437415957) is an individual obstetrics & gynecology provider in San Francisco, California, licensed in California (A128309) and active in the NPI registry since April 2012. She is enrolled in Medicare PECOS and is a graduate of Stanford University School Of Medicine (2012).

NPPES Registry Identity

NPI1437415957
Entity TypeIndividualFemale
Primary Taxonomy207V00000X
Provider Legal NameVICTORIA GAH HAY WOOCredential: M.D.
Location Address1001 POTRERO AVE # 6DSan Francisco, CA 94110-3518
Mailing Address505 Parnassus Ave # 132San Francisco, CA 94143-2204 · (415) 476-5192 · Fax (415) 476-1811
Phone(415) 476-5192
Fax(415) 476-1811
Sole ProprietorNo
Medical School CMSStanford University School Of MedicineGraduated 2012
Enumeration DateApril 10, 2012
Last NPPES UpdateDecember 17, 2021
✔ NPI 1437415957 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyObstetrics & GynecologyAllopathic & Osteopathic Physicians
Taxonomy Code207V00000X
License✔ Licensed in CA · A128309
Definition
An obstetrician/gynecologist possesses special knowledge, skills and professional capability in the medical and surgical care of the female reproductive system and associated disorders. This physician serves as a consultant to other physicians and as a primary physician for women.
1001 POTRERO AVE # 6D, San Francisco, CA 94110
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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

Victoria Gah Hay Woo M.d. 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 ID8921363003
PECOS Enrollment IDI20210712002436
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 Reassignment

Medicare enrollment records show Victoria Woo reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Permanente Medical Group Inc
2.7 mi
Internal Medicine
2238 GEARY
San Francisco, CA 94116
  • Reassigned Medicare billing, California enrollment
  • 20,078 clinicians in this Medicare group
NPI 1841373800 (415) 833-2200

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 94110 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
$153.83 typical visit price
range $69.00 – $202.35
Typical copayment $38.45 (range $17.25 – $50.58)
Most-billed visit code 99204
Established Patient
$84.91 typical visit price
range $23.44 – $166.46
Typical copayment $21.22 (range $5.86 – $41.61)
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 20

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

DR. CHITRA AKILESWARAN MD
Obstetrics & Gynecology
1001 POTRERO AVE # 6D
SAN FRANCISCO, CA 94110
San Francisco County (415) 206-3061
LEAH WORMACK MD
Student in an Organized Health Care Education/Training Program
1001 POTRERO AVE # 6D
SAN FRANCISCO, CA 94110
San Francisco County (415) 206-3409
SARAH BENTLEY WILSON HANNAY M.D.
Obstetrics & Gynecology
1001 POTRERO AVE # 6D, SFGH OBGYN
SAN FRANCISCO, CA 94110
San Francisco County (415) 206-3061
KATHERINE STACIE BRITO
Student in an Organized Health Care Education/Training Program
1001 POTRERO AVE # 6D
SAN FRANCISCO, CA 94110
San Francisco County (714) 247-9150
VICTOR V LONG
Obstetrics & Gynecology
1001 POTRERO AVE # 6D, SFGH OB GYN
SAN FRANCISCO, CA 94110
San Francisco County (415) 206-3061
DR. ANDREA MICHELLE DALVE-ENDRES MD
Obstetrics & Gynecology
1001 POTRERO AVE # 6D, SFGH OB GYN
SAN FRANCISCO, CA 94110
San Francisco County (415) 206-3061
DR. TUSHANI DIMANTHA ILLANGASEKARE MD
Obstetrics & Gynecology
1001 POTRERO AVE # 6D, SFGH OB GYN
SAN FRANCISCO, CA 94110
San Francisco County (415) 206-4069
MELANIE MAYKIN M.D.
Obstetrics & Gynecology
1001 POTRERO AVE # 6D, SFGH OB GYN
SAN FRANCISCO, CA 94110
San Francisco County (415) 476-5192

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 Victoria Woo's NPI number?

The NPI number for Victoria Woo is 1437415957. It was assigned to this individual provider in the NPPES registry on April 10, 2012.

Where is Victoria Woo located?

Victoria Woo practices at 1001 Potrero Ave # 6D, San Francisco, CA 94110. The listed phone number is (415) 476-5192.

What is Victoria Woo's specialty?

The primary specialty registered for this NPI is Obstetrics & Gynecology with taxonomy code 207V00000X.

Is Victoria Woo enrolled in Medicare?

Yes. Victoria Woo 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 organization bills Medicare for Victoria Woo's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Victoria Woo reassigns Medicare benefits to Permanente Medical Group Inc (San Francisco, CA). The 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 Victoria Woo'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 Victoria Woo was last updated on December 17, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.