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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

DR. DEBRA OUYANG MD
NPI 1174753826
Internal Medicine - Endocrinology, Diabetes & Metabolism in Camarillo, CA

Active since July 15, 2009PECOS Enrolled
422 ARNEILL RD STE B, CAMARILLO, CA 93010(805) 383-4510(805) 383-4511 Get Directions Write a Review

NPPES record last updated: September 6, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Dr. Debra Ouyang Md NPPES

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

DR. DEBRA OUYANG MD (NPI 1174753826) is an individual endocrinology, diabetes & metabolism provider in Camarillo, California, licensed in California (A113595) and active in the NPI registry since July 2009. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1174753826
Entity TypeIndividualFemale
Primary Taxonomy207RE0101X
Provider Legal NameDR. DEBRA OUYANGCredential: MD
Location Address422 ARNEILL RD STE BCamarillo, CA 93010-6434
Mailing Address5855 Olivas Park DrVentura, CA 93003-7672 · (805) 667-2801 · Fax (805) 667-2865
Phone(805) 383-4510
Fax(805) 383-4511
Sole ProprietorNo
Enumeration DateJuly 15, 2009
Last NPPES UpdateSeptember 6, 2026
✔ NPI 1174753826 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 · A113595
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.
422 ARNEILL RD STE B, Camarillo, CA 93010
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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 (PECOS)

Dr. Debra Ouyang 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 Reassignments

2

Medicare enrollment records show Debra Ouyang reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Telehealthdocs Medical Corporation
79 mi
Contractor
2215 TRUXTUN AVE, SUITE 100
Bakersfield, CA 93301
  • Reassigned Medicare billing, California enrollment
  • 6 clinicians in this Medicare group
NPI 1366789018 (661) 840-9270
Eastern Plumas Health Care District
393 mi
Critical Access
480 1ST AVE
Portola, CA 96122
  • Reassigned Medicare billing, California enrollment
  • 58 clinicians in this Medicare group
NPI 1245236850 (530) 832-6500

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 93010 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
$140.72 typical visit price
range $62.32 – $185.36
Typical copayment $35.18 (range $15.58 – $46.34)
Most-billed visit code 99204
Established Patient
$108.74 typical visit price
range $20.68 – $151.85
Typical copayment $27.18 (range $5.17 – $37.96)
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 6

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

DR. CATHERINE ANGELA KIM M.D.
Family Medicine
422 ARNEILL RD STE B
CAMARILLO, CA 93010
Ventura County (805) 482-1282
DR. THANH-VAN MAI MD
Family Medicine
422 ARNEILL RD STE B
CAMARILLO, CA 93010
Ventura County (805) 482-1282
ALICIA MOUWEN PA-C
Family Medicine
422 ARNEILL RD STE B
CAMARILLO, CA 93010
Ventura County (805) 652-6353
DR. PATRICK K SIU M.D.
Internal Medicine
422 ARNEILL RD STE B
CAMARILLO, CA 93010
Ventura County (805) 383-4510
DR. DOROTHY DU GRAFF D.O.
Family Medicine
422 ARNEILL RD STE B
CAMARILLO, CA 93010
Ventura County (805) 482-1282
DR. HOANG-ANH PHAM M.D.
Pediatrics
422 ARNEILL RD STE B
CAMARILLO, CA 93010
Ventura County (805) 383-4510

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 Debra Ouyang's NPI number?

The NPI number for Debra Ouyang is 1174753826. It was assigned to this individual provider in the NPPES registry on July 15, 2009.

Where is Debra Ouyang located?

Debra Ouyang practices at 422 Arneill Rd Ste B, Camarillo, CA 93010. The listed phone number is (805) 383-4510.

What is Debra Ouyang's specialty?

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

Is Debra Ouyang enrolled in Medicare?

Yes. Debra Ouyang is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Debra Ouyang's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Debra Ouyang reassigns Medicare benefits to 2 organizations: Telehealthdocs Medical Corporation (Bakersfield, CA) and Eastern Plumas Health Care District (Portola, CA). Each 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 Debra Ouyang'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 Debra Ouyang was last updated on September 6, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 46 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.