DR. TING-WEI OU MD
NPI 1669600250
Preventive Medicine - Occupational Medicine in Corona, CA

Active since June 23, 2009PECOS EnrolledAccepts Medicare Assignment
21634 RETREAT PKWY, CORONA, CA 92883(951) 493-6929(951) 826-8156 Get Directions Write a Review

NPPES record last updated: April 14, 2025. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Sep 16, 2024, Jul 17, 2020, Mar 13, 2019 (3 updates tracked since 2019).

About Dr. Ting-wei Ou Md NPPES

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

DR. TING-WEI OU MD (NPI 1669600250) is an individual occupational medicine provider in Corona, California, licensed in California (A133010) and active in the NPI registry since June 2009. He is enrolled in Medicare PECOS, maintains 3 additional practice locations, and is a graduate of Medical College Of Georgia School Of Medicine (2009).

NPPES Registry Identity

NPI1669600250
Entity TypeIndividualMale
Primary Taxonomy2083X0100X
Provider Legal NameDR. TING-WEI OUCredential: MD
Location Address21634 RETREAT PKWYCorona, CA 92883-6100
Mailing Address21634 Retreat PkwyCorona, CA 92883-6100 · (951) 493-6929 · Fax (951) 826-8156
Fax(951) 826-8156
Sole ProprietorNo
Medical School CMSMedical College Of Georgia School Of MedicineGraduated 2009
Enumeration DateJune 23, 2009
Last NPPES UpdateApril 14, 20253 updates tracked since enumeration
NPPES CertifiedApril 14, 2025
✔ NPI 1669600250 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyPreventive Medicine · Occupational MedicineAllopathic & Osteopathic Physicians
Taxonomy Code2083X0100X
License✔ Licensed in CA · A133010
Definition
Occupational medicine focuses on the health of workers, including the ability to perform work; the physical, chemical, biological, and social environments of the workplace; and the health outcomes of environmental exposures. Practitioners in this field address the promotion of health in the work place, and the prevention and management of occupational and environmental injury, illness, and disability.
Also ListedInternal MedicineTaxonomy 207R00000X · License A133010 (CA)
Also ListedPreventive Medicine · Preventive Medicine/Occupational Environmental MedicineTaxonomy 2083P0500X · License A133010 (CA)
21634 RETREAT PKWY, Corona, CA 92883

Secondary Practice Locations 3

Location 11760 Chicago Ave Ste J3Riverside, CA 92507 · Phone (951) 781-2200 · Fax (951) 781-2220
Location 212742 Limonite AveEastvale, CA 92880-9630 · Phone (951) 739-2746 · Fax (951) 371-6586
Location 3Ortho/Surgery Clinic - 1801 Sunset DriveColumbia, SC 29203 · Phone (803) 434-4166 · Fax (803) 434-4183

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

Dr. Ting-wei Ou Md 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 ID2163763335
PECOS Enrollment IDI20190416003194
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 Ting-wei Ou reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Internal Medicine
7117 BROCKTON AVE
Riverside, CA 92506
  • Reassigned Medicare billing, California enrollment
  • 349 clinicians in this Medicare group

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 92883 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
$136.04 typical visit price
range $59.60 – $179.42
Typical copayment $34.01 (range $14.90 – $44.85)
Most-billed visit code 99204
Established Patient
$104.64 typical visit price
range $19.37 – $146.42
Typical copayment $26.16 (range $4.84 – $36.60)
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 20

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

Family Medicine
21634 RETREAT PKWY
CORONA, CA 92883
Surgery
21634 RETREAT PKWY
CORONA, CA 92883
Family Medicine
21634 RETREAT PKWY
CORONA, CA 92883
Internal Medicine
21634 RETREAT PKWY
CORONA, CA 92883
Family Medicine
21634 RETREAT PKWY
CORONA, CA 92883
Family Medicine
21634 RETREAT PKWY
CORONA, CA 92883
Obstetrics & Gynecology
21634 RETREAT PKWY
CORONA, CA 92883
Internal Medicine
21634 RETREAT PKWY
CORONA, CA 92883

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 Ting-wei Ou's NPI number?

The NPI number for Ting-wei Ou is 1669600250. It was assigned to this individual provider in the NPPES registry on June 23, 2009.

Where is Ting-wei Ou located?

Ting-wei Ou practices at 21634 Retreat Pkwy, Corona, CA 92883. The listed phone number is (951) 493-6929.

What is Ting-wei Ou's specialty?

The primary specialty registered for this NPI is Preventive Medicine, specializing in Occupational Medicine, with taxonomy code 2083X0100X.

Is Ting-wei Ou enrolled in Medicare?

Yes. Ting-wei Ou 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 Ting-wei Ou's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Ting-wei Ou reassigns Medicare benefits to Riverside Medical Clinic, Inc (Riverside, 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 Ting-wei Ou'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 Ting-wei Ou was last updated on April 14, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 months 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.