JAMES CHOU M.D.
NPI 1396916003
Hospitalist in Harbor City, CA
About James Chou M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
JAMES CHOU M.D. (NPI 1396916003) is an individual hospitalist provider in Harbor City, California, licensed in California (A93266) and active in the NPI registry since March 2008. He is enrolled in Medicare PECOS and is a graduate of Other (2004).
NPPES Registry Identity
Specialties & Licenses
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
James Chou 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.
Medicare Billing Reassignment
Medicare enrollment records show James Chou reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Harbor City, CA 90710
- Reassigned Medicare billing, California enrollment
- 13,921 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
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.
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 James Chou's NPI number?
The NPI number for James Chou is 1396916003. It was assigned to this individual provider in the NPPES registry on March 20, 2008.
Where is James Chou located?
James Chou practices at 25825 Vermont Ave, Harbor City, CA 90710. The listed phone number is (310) 325-5111.
What is James Chou's specialty?
The primary specialty registered for this NPI is Hospitalist with taxonomy code 208M00000X.
Is James Chou enrolled in Medicare?
Yes. James Chou 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 James Chou's services?
According to the CMS Revalidation Reassignment List (October 2026 release), James Chou 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 James Chou'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 James Chou was last updated on December 3, 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.