DR. PATRICK HAROLD KWAN M.D.
NPI 1164468286
Anesthesiology in Greenbrae, CA
About Dr. Patrick Harold Kwan M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. PATRICK HAROLD KWAN M.D. (NPI 1164468286) is an individual anesthesiology provider in Greenbrae, California, licensed in California (G71487) and active in the NPI registry since June 2006. He is enrolled in Medicare PECOS, maintains 2 additional practice locations, and is a graduate of Warren Alpert Medical School Of Brown University (1989).
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Locations 2
Other Identifiers 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
Dr. Patrick Harold Kwan 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 Reassignments
2Medicare enrollment records show Patrick Kwan reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Richmond, CA 94801
- Reassigned Medicare billing, California enrollment
- 20,078 clinicians in this Medicare group
Santa Rosa, CA 95404
- Reassigned Medicare billing, California enrollment
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
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.
GREENBRAE, CA 94904
GREENBRAE, CA 94904
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 Patrick Kwan's NPI number?
The NPI number for Patrick Kwan is 1164468286. It was assigned to this individual provider in the NPPES registry on June 20, 2006.
Where is Patrick Kwan located?
Patrick Kwan practices at 250 Bon Air Rd, Greenbrae, CA 94904. The listed phone number is (415) 927-4070.
What is Patrick Kwan's specialty?
The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.
Is Patrick Kwan enrolled in Medicare?
Yes. Patrick 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.
Which organizations bill Medicare for Patrick Kwan's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Patrick Kwan reassigns Medicare benefits to 2 organizations: Permanente Medical Group Inc (Richmond, CA) and Patrick Kwan MD, Inc. (Santa Rosa, 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 Patrick Kwan'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 Patrick Kwan was last updated on March 29, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.
# Dr. Patrick Harold Kwan, M.D. · NPI 1164468286
Anesthesiology physician in Greenbrae, California. Individual provider, active in the CMS NPPES registry since June 20, 2006.
## Identity
- **NPI:** 1164468286 (Entity type: Individual)
- **Enumerated:** June 20, 2006
- **Primary specialty:** Anesthesiology · taxonomy 207L00000X
- **State license:** G71487 (California)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 250 BON AIR RD, Greenbrae, CA 94904-1702
- **Phone:** (415) 927-4070
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 2 organizations under Medicare reassignment (form CMS-855R): Permanente Medical Group Inc (NPI 1235226531, Richmond, CA); Patrick Kwan MD, Inc. (NPI 1588103725, Santa Rosa, CA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Warren Alpert Medical School Of Brown University, class of 1989
## Record status
- **NPPES last updated:** March 29, 2024
- **Other identifiers:** Medicaid 00G714872 (CA)
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Source: [NPI Profile](https://npiprofile.com/npi/1164468286) · Data from the CMS NPPES public registry.