TIMO T OU
NPI 1811469984
Nurse Anesthetist, Certified Registered in Harbor City, CA
About Timo T Ou NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
TIMO T OU (NPI 1811469984) is an individual nurse anesthetist, certified registered in Harbor City, California, licensed in California (95001017) and active in the NPI registry since December 2018. He is a graduate of Other (2018).
NPPES Registry Identity
Specialties & Licenses
Other Names 1
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
Timo T Ou 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.
Medicare Billing Reassignments
8Medicare enrollment records show Timo Ou reassigns Medicare billing to 8 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Harbor City, CA 90710
- Reassigned Medicare billing, California enrollment
- 13,921 clinicians in this Medicare group
Downey, CA 90241
- Reassigned Medicare billing, California enrollment
- 3 clinicians in this Medicare group
Santa Monica, CA 90404
- Reassigned Medicare billing, California enrollment
- 57 clinicians in this Medicare group
Tarzana, CA 91356
- Reassigned Medicare billing, California enrollment
- 44 clinicians in this Medicare group
Glendora, CA 91740
- Reassigned Medicare billing, California enrollment
- 43 clinicians in this Medicare group
Rancho Cucamonga, CA 91730
- Reassigned Medicare billing, California enrollment
- 7 clinicians in this Medicare group
Redlands, CA 92374
- Reassigned Medicare billing, California enrollment
- 35 clinicians in this Medicare group
Murrieta, CA 92563
- Reassigned Medicare billing, California enrollment
- 240 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.
Areas of Expertise CMS Part B claims 5
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 90710 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
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.
HARBOR CITY, CA 90710
HARBOR CITY, CA 90710
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 Timo Ou's NPI number?
The NPI number for Timo Ou is 1811469984. It was assigned to this individual provider in the NPPES registry on December 29, 2018. The provider is also known as Timothy Ou.
Where is Timo Ou located?
Timo Ou practices at 25825 Vermont Ave, Harbor City, CA 90710. The listed phone number is (310) 325-5111.
What is Timo Ou's specialty?
The primary specialty registered for this NPI is Nurse Anesthetist, Certified Registered with taxonomy code 367500000X.
Is Timo Ou enrolled in Medicare?
Yes. Timo 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 organizations bill Medicare for Timo Ou's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Timo Ou reassigns Medicare benefits to 8 organizations: Southern California Permanente Medical Group (Harbor City, CA), Pacific Vascular Access Care, Inc (Downey, CA), Digestive Health Associates Of Southern California (Santa Monica, CA), Scq Anesthesia A Professional Nursing Corporation (Tarzana, CA), Glendora Anesthesia Associates LP (Glendora, CA) and 3 more organizations, listed in the Medicare section above. 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 Timo 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 Timo Ou was last updated on December 2, 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.
# Timo T Ou · NPI 1811469984
Nurse Anesthetist, Certified Registered physician in Harbor City, California. Individual provider, active in the CMS NPPES registry since December 29, 2018.
## Identity
- **NPI:** 1811469984 (Entity type: Individual)
- **Enumerated:** December 29, 2018
- **Primary specialty:** Nurse Anesthetist, Certified Registered · taxonomy 367500000X
- **State license:** 95001017 (California)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 25825 VERMONT AVE, Harbor City, CA 90710-3518
- **Phone:** (310) 325-5111
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Bills Medicare through:** 8 organizations under Medicare reassignment (form CMS-855R): Southern California Permanente Medical Group (NPI 1598797011, Harbor City, CA); Pacific Vascular Access Care, Inc (NPI 1629846670, Downey, CA); Digestive Health Associates Of Southern California (NPI 1043098619, Santa Monica, CA); Scq Anesthesia A Professional Nursing Corporation (NPI 1689381105, Tarzana, CA); Glendora Anesthesia Associates LP (NPI 1750748331, Glendora, CA); and 3 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2018
## Record status
- **NPPES last updated:** December 2, 2021
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Source: [NPI Profile](https://npiprofile.com/npi/1811469984) · Data from the CMS NPPES public registry.