1. Home
  2. Directory
  3. California
  4. Torrance
  5. Obstetrics Gynecology
  6. NPI Profile

DR. STEPHANIE M CHEN M.D.
NPI 1811189152
Obstetrics & Gynecology in Torrance, CA

Active since August 10, 2007PECOS Enrolled
1000 W CARSON ST, TORRANCE, CA 90502(310) 222-3886 Get Directions Write a Review

NPPES record last updated: October 15, 2024. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Dr. Stephanie M Chen M.d. NPPES

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

DR. STEPHANIE M CHEN M.D. (NPI 1811189152) is an individual obstetrics & gynecology provider in Torrance, California, licensed in California (A93057) and active in the NPI registry since August 2007. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1811189152
Entity TypeIndividualFemale
Primary Taxonomy207V00000X
Provider Legal NameDR. STEPHANIE M CHENCredential: M.D.
Location Address1000 W CARSON STTorrance, CA 90502-2004
Mailing Address3621 Emerald St, Apt 31Torrance, CA 90503-3533 · (310) 221-2128
Phone(310) 222-3886
Sole ProprietorNo
Enumeration DateAugust 10, 2007
Last NPPES UpdateOctober 15, 2024
NPPES CertifiedOctober 15, 2024
✔ NPI 1811189152 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 · A93057
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.
1000 W CARSON ST, Torrance, CA 90502
Open in Google Maps ↗

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Stephanie M Chen M.d. 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 Stephanie Chen reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Southern California Permanente Medical Group
3.0 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 90502 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 20

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

MISS BRITTANY IRVINE M.A.
Student in an Organized Health Care Education/Training Program
1000 W CARSON ST
TORRANCE, CA 90502
Los Angeles County (310) 222-2345
DEPAREMENT OF MANTAL HEALTH
Case Management
1000 W CARSON ST
TORRANCE, CA 90502
Los Angeles County (310) 222-1648
DINA M MEZA
Nurse Practitioner (Family)
1000 W CARSON ST, HEAD AND NECK BOX 6
TORRANCE, CA 90502
Los Angeles County (310) 222-2741
MARIA GUADALUPE VALADEZ
Student in an Organized Health Care Education/Training Program
1000 W CARSON ST
TORRANCE, CA 90502
Los Angeles County (559) 789-1327
ESTEBAN COTA
Specialist
1000 W CARSON ST
TORRANCE, CA 90502
Los Angeles County (310) 222-2345
MS. DAWN MARIE TLUSTY RN
Registered Nurse (Infusion Therapy)
1000 W CARSON ST
TORRANCE, CA 90502
Los Angeles County (310) 222-1906
DR. NICOLE MOORE MD
Student in an Organized Health Care Education/Training Program
1000 W CARSON ST
TORRANCE, CA 90502
Los Angeles County (310) 222-2345
KENTON YUJI SAKURAI
Psychiatry & Neurology (Psychiatry)
1000 W CARSON ST
TORRANCE, CA 90502
Los Angeles County (424) 306-4000

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 Stephanie Chen's NPI number?

The NPI number for Stephanie Chen is 1811189152. It was assigned to this individual provider in the NPPES registry on August 10, 2007.

Where is Stephanie Chen located?

Stephanie Chen practices at 1000 W Carson St, Torrance, CA 90502. The listed phone number is (310) 222-3886.

What is Stephanie Chen's specialty?

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

Is Stephanie Chen enrolled in Medicare?

Yes. Stephanie Chen is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Stephanie Chen's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Stephanie Chen 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 Stephanie Chen'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 Stephanie Chen was last updated on October 15, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.