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DR. QUYNH THI NGOC VO-HANSER MD
NPI 1295815736
Obstetrics & Gynecology - Maternal & Fetal Medicine in Torrance, CA

Active since October 17, 2006PECOS Enrolled
23441 MADISON STREET, BLDG 8, SUITE 290, TORRANCE, CA 90505(310) 375-7172(310) 375-7192 Get Directions Write a Review

NPPES record last updated: December 21, 2021. Verified against the NPPES registry weekly; last sync: November 01, 2026.

About Dr. Quynh Thi Ngoc Vo-hanser Md NPPES

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

DR. QUYNH THI NGOC VO-HANSER MD (NPI 1295815736) is an individual maternal & fetal medicine provider in Torrance, California, licensed in California (130507) and active in the NPI registry since October 2006. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1295815736
Entity TypeIndividualFemale
Primary Taxonomy207VM0101X
Provider Legal NameDR. QUYNH THI NGOC VO-HANSERCredential: MD
Location Address23441 MADISON STREET, BLDG 8, SUITE 290Torrance, CA 90505-4735
Mailing Address770 The City Drive South, Suite 4000Orange, CA 92868-4929 · (800) 463-6628 · Fax (714) 620-3008
Phone(310) 375-7172
Fax(310) 375-7192
Sole ProprietorNo
Enumeration DateOctober 17, 2006
Last NPPES UpdateDecember 21, 2021
NPPES CertifiedDecember 21, 2021
✔ NPI 1295815736 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyObstetrics & Gynecology · Maternal & Fetal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207VM0101X
Licenses✔ Licensed in CA · 130507✔ Licensed in NV · 12533
Definition
An obstetrician/gynecologist who cares for, or provides consultation on, patients with complications of pregnancy. This specialist has advanced knowledge of the obstetrical, medical and surgical complications of pregnancy and their effect on both the mother and the fetus. The specialist also possesses expertise in the most current diagnostic and treatment modalities used in the care of patients with complicated pregnancies.
23441 MADISON STREET, Torrance, CA 90505
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Other Names 1

Former Name (1)Quynh Vo Md

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Quynh Thi Ngoc Vo-hanser Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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 Quynh Vo-hanser reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Southern California Permanente Medical Group
3.5 mi
Health Maintenance Organization
25825 VERMONT AVE
Harbor City, CA 90710
  • Reassigned Medicare billing, California enrollment
  • 13,921 clinicians in this Medicare group
NPI 1598797011 (310) 325-5111

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 90505 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
$142.39 typical visit price
range $62.96 – $187.60
Typical copayment $35.59 (range $15.74 – $46.90)
Most-billed visit code 99204
Established Patient
$77.96 typical visit price
range $20.84 – $153.61
Typical copayment $19.49 (range $5.21 – $38.40)
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

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

LORI K. MALINBAUM DDS INC.
Dentist
23441 MADISON STREET, BLDG #8 SUITE #205
TORRANCE, CA 90505
Los Angeles County (310) 480-8286

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 Quynh Vo-hanser's NPI number?

The NPI number for Quynh Vo-hanser is 1295815736. It was assigned to this individual provider in the NPPES registry on October 17, 2006. The provider is also known as Quynh Vo MD.

Where is Quynh Vo-hanser located?

Quynh Vo-hanser practices at 23441 Madison Street Bldg 8, Suite 290, Torrance, CA 90505. The listed phone number is (310) 375-7172.

What is Quynh Vo-hanser's specialty?

The primary specialty registered for this NPI is Obstetrics & Gynecology, specializing in Maternal & Fetal Medicine, with taxonomy code 207VM0101X.

Is Quynh Vo-hanser enrolled in Medicare?

Yes. Quynh Vo-hanser is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Quynh Vo-hanser's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Quynh Vo-hanser reassigns Medicare benefits to Southern California Permanente Medical Group (Harbor City, 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 Quynh Vo-hanser'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 Quynh Vo-hanser was last updated on December 21, 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.