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DEBORAH CHON M.D.
NPI 1003173949
Internal Medicine - Endocrinology, Diabetes & Metabolism in Torrance, CA

Active since April 17, 2012PECOS EnrolledAccepts Medicare Assignment
3445 PACIFIC COAST HWY STE 100, TORRANCE, CA 90505(310) 542-6333 Get Directions Write a Review

NPPES record last updated: November 30, 2021. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Nov 30, 2021, May 8, 2018 (2 updates tracked since 2018).

About Deborah Chon M.d. NPPES

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

DEBORAH CHON M.D. (NPI 1003173949) is an individual endocrinology, diabetes & metabolism provider in Torrance, California, licensed in California (12189893) and active in the NPI registry since April 2012. She is enrolled in Medicare PECOS, maintains a secondary practice location in Los Angeles, and is a graduate of Rush Medical College Of Rush University (2012).

NPPES Registry Identity

NPI1003173949
Entity TypeIndividualFemale
Primary Taxonomy207RE0101X
Provider Legal NameDEBORAH CHONCredential: M.D.
Location Address3445 PACIFIC COAST HWY STE 100Torrance, CA 90505-6659
Mailing Address3445 Pacific Coast Hwy Ste 100Torrance, CA 90505-6659 · (310) 542-6333
Phone(310) 542-6333
Sole ProprietorNo
Medical School CMSRush Medical College Of Rush UniversityGraduated 2012
Enumeration DateApril 17, 2012
Last NPPES UpdateNovember 30, 20212 updates tracked since enumeration
✔ NPI 1003173949 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Endocrinology, Diabetes & MetabolismAllopathic & Osteopathic Physicians
Taxonomy Code207RE0101X
License✔ Licensed in CA · 12189893
Definition
An internist who concentrates on disorders of the internal (endocrine) glands such as the thyroid and adrenal glands. This specialist also deals with disorders such as diabetes, metabolic and nutritional disorders, obesity, pituitary diseases and menstrual and sexual problems.
3445 PACIFIC COAST HWY STE 100, Torrance, CA 90505
Open in Google Maps ↗

Secondary Practice Location 1

Location 111301 Wilshire BlvdLos Angeles, CA 90073-1003 · Phone (310) 478-3711

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

Deborah Chon 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 ID4183998842
PECOS Enrollment IDI20170919001157
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 Deborah Chon reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Southern California Permanente Medical Group
3.1 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
$109.96 typical visit price
range $20.84 – $153.61
Typical copayment $27.49 (range $5.21 – $38.40)
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 9

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

MICHELLE HWANG M.D.
Internal Medicine (Nephrology)
3445 PACIFIC COAST HWY STE 100
TORRANCE, CA 90505
Los Angeles County (310) 542-6333
VIVEK BOSE MD
Internal Medicine (Endocrinology, Diabetes & Metabolism)
3445 PACIFIC COAST HWY STE 100
TORRANCE, CA 90505
Los Angeles County (310) 542-6333
HARPREET SIDHU M.D.
Internal Medicine (Nephrology)
3445 PACIFIC COAST HWY STE 100
TORRANCE, CA 90505
Los Angeles County (310) 542-6333
DR. AARTHI ARASU MD
Internal Medicine (Endocrinology, Diabetes & Metabolism)
3445 PACIFIC COAST HWY STE 100
TORRANCE, CA 90505
Los Angeles County (310) 542-6333
DR. DIANNE SOUKFUN CHEUNG M.D.
Internal Medicine (Endocrinology, Diabetes & Metabolism)
3445 PACIFIC COAST HWY STE 100
TORRANCE, CA 90505
Los Angeles County (310) 542-6333
ERICA JANAK PATEL M.D.
Internal Medicine (Endocrinology, Diabetes & Metabolism)
3445 PACIFIC COAST HWY STE 100
TORRANCE, CA 90505
Los Angeles County (310) 542-6333
REBECCA ELIZABETH GERL RD
Dietitian, Registered
3445 PACIFIC COAST HWY STE 100
TORRANCE, CA 90505
Los Angeles County (310) 542-6333
ROBERT LIN LI M.D./PH.D.
Internal Medicine (Endocrinology, Diabetes & Metabolism)
3445 PACIFIC COAST HWY STE 100
TORRANCE, CA 90505
Los Angeles County (310) 542-6333

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 Deborah Chon's NPI number?

The NPI number for Deborah Chon is 1003173949. It was assigned to this individual provider in the NPPES registry on April 17, 2012.

Where is Deborah Chon located?

Deborah Chon practices at 3445 Pacific Coast Hwy Ste 100, Torrance, CA 90505. The listed phone number is (310) 542-6333.

What is Deborah Chon's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Endocrinology, Diabetes & Metabolism, with taxonomy code 207RE0101X.

Is Deborah Chon enrolled in Medicare?

Yes. Deborah Chon 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 Deborah Chon's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Deborah Chon 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 Deborah Chon'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 Deborah Chon was last updated on November 30, 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.