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MICHAEL CHAU M.D.
NPI 1730534835
Orthopaedic Surgery in Los Angeles, CA

Active since April 27, 2016PECOS Enrolled
85.71/100
CMS Quality Rating
6801 PARK TER # 100400, LOS ANGELES, CA 90045(310) 665-7200 Get Directions Write a Review

NPPES record last updated: August 4, 2022. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Aug 4, 2022, Jun 1, 2021 (2 updates tracked since 2021).

About Michael Chau M.d. NPPES

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

MICHAEL CHAU M.D. (NPI 1730534835) is an individual orthopaedic surgery provider in Los Angeles, California, licensed in California (A175901) and active in the NPI registry since April 2016. He is enrolled in Medicare PECOS and maintains 2 additional practice locations.

NPPES Registry Identity

NPI1730534835
Entity TypeIndividualMale
Primary Taxonomy207X00000X
Provider Legal NameMICHAEL CHAUCredential: M.D.
Location Address6801 PARK TER # 100400Los Angeles, CA 90045-1543
Mailing Address2222 Welborn StDallas, TX 75219-3924 · (214) 559-8430
Phone(310) 665-7200
Sole ProprietorYes
Enumeration DateApril 27, 2016
Last NPPES UpdateAugust 4, 20222 updates tracked since enumeration
NPPES CertifiedAugust 4, 2022
✔ NPI 1730534835 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyOrthopaedic SurgeryAllopathic & Osteopathic Physicians
Taxonomy Code207X00000X
Licenses✔ Licensed in CA · A175901✔ Licensed in TX · T1317
Definition
An orthopaedic surgeon is trained in the preservation, investigation and restoration of the form and function of the extremities, spine and associated structures by medical, surgical and physical means. An orthopaedic surgeon is involved with the care of patients whose musculoskeletal problems include congenital deformities, trauma, infections, tumors, metabolic disturbances of the musculoskeletal system, deformities, injuries and degenerative diseases of the spine, hands, feet, knee, hip, shoulder and elbow in children and adults. An orthopaedic surgeon is also concerned with primary and secondary muscular problems and the effects of central or peripheral nervous system lesions of the musculoskeletal system.
Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X
6801 PARK TER # 100400, Los Angeles, CA 90045
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Secondary Practice Locations 2

Location 12450 Riverside AveMinneapolis, MN 55454-1450 · Phone (612) 273-8043
Location 22222 Welborn StDallas, TX 75219-3924 · Phone (214) 559-8430

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Michael Chau 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 Reassignments

2

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

University Of California San Francisco
347 mi
Surgery
400 PARNASSUS AVE, MCB 300
San Francisco, CA 94143
  • Reassigned Medicare billing, California enrollment
  • 5,645 clinicians in this Medicare group
NPI 1346329380 (415) 353-2161
Ucsf Medical Group Business Services
347 mi
Internal Medicine
400 PARNASSUS AVE
San Francisco, CA 94122
  • Reassigned Medicare billing, California enrollment
  • 5,544 clinicians in this Medicare group
NPI 1477624104 (415) 353-2808

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 90045 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
$96.36 typical visit price
range $62.96 – $187.60
Typical copayment $24.09 (range $15.74 – $46.90)
Most-billed visit code 99203
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.

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.

85.71/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality85.67
Promoting Interoperability100
Improvement Activities40
Cost61.47

Other Providers at the Same Location NPPES

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

VARUN SINGLA
Orthopaedic Surgery (Sports Medicine)
6801 PARK TER # 100400
LOS ANGELES, CA 90045
Los Angeles County (310) 665-7200

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 Michael Chau's NPI number?

The NPI number for Michael Chau is 1730534835. It was assigned to this individual provider in the NPPES registry on April 27, 2016.

Where is Michael Chau located?

Michael Chau practices at 6801 Park Ter # 100400, Los Angeles, CA 90045. The listed phone number is (310) 665-7200.

What is Michael Chau's specialty?

The primary specialty registered for this NPI is Orthopaedic Surgery with taxonomy code 207X00000X.

Is Michael Chau enrolled in Medicare?

Yes. Michael Chau is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Michael Chau's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Michael Chau reassigns Medicare benefits to 2 organizations: University Of California San Francisco (San Francisco, CA) and Ucsf Medical Group Business Services (San Francisco, 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 Michael Chau'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 Michael Chau was last updated on August 4, 2022. 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.