DR. WILLIAM WARREN KWAN MD
NPI 1376504407
Dermatology in Los Angeles, CA
About Dr. William Warren Kwan Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. WILLIAM WARREN KWAN MD (NPI 1376504407) is an individual dermatology provider in Los Angeles, California, licensed in California (G73605) and active in the NPI registry since March 2006. He is enrolled in Medicare PECOS and is a graduate of University Of California, Geffen School Of Medicine (1990).
NPPES Registry Identity
Specialties & Licenses
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Dr. William Warren Kwan 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 90048 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 2
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
LOS ANGELES, CA 90048
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 William Kwan's NPI number?
The NPI number for William Kwan is 1376504407. It was assigned to this individual provider in the NPPES registry on March 29, 2006.
Where is William Kwan located?
William Kwan practices at 8631 W 3rd St Ste 1035, Los Angeles, CA 90048. The listed phone number is (310) 659-9075.
What is William Kwan's specialty?
The primary specialty registered for this NPI is Dermatology with taxonomy code 207N00000X.
Is William Kwan enrolled in Medicare?
Yes. William Kwan 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.
When was this NPI record last updated?
The NPPES record for William Kwan was last updated on July 9, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 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.
# Dr. William Warren Kwan, MD · NPI 1376504407
Dermatology physician in Los Angeles, California. Individual provider, active in the CMS NPPES registry since March 29, 2006.
## Identity
- **NPI:** 1376504407 (Entity type: Individual)
- **Enumerated:** March 29, 2006
- **Primary specialty:** Dermatology · taxonomy 207N00000X
- **State license:** G73605 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 8631 W 3RD ST STE 1035, Los Angeles, CA 90048-5964
- **Phone:** (310) 659-9075
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Medical school:** University Of California, Geffen School Of Medicine, class of 1990
## Record status
- **NPPES last updated:** July 9, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1376504407) · Data from the CMS NPPES public registry.