DR. WILSON OAI LY MD, PHARMD
NPI 1063653582
Anesthesiology in San Francisco, CA
About Dr. Wilson Oai Ly Md, Pharmd NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. WILSON OAI LY MD, PHARMD (NPI 1063653582) is an individual anesthesiology provider in San Francisco, California, licensed in California (A181380) and active in the NPI registry since March 2009. He is enrolled in Medicare PECOS and is a graduate of University Of California, San Francisco School Of Medicine (2019).
NPPES Registry Identity
Specialties & Licenses 2
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. Wilson Oai Ly Md, Pharmd 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
5Medicare enrollment records show Wilson Ly reassigns Medicare billing to 5 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
San Francisco, CA 94143
- Reassigned Medicare billing, California enrollment
- 5,645 clinicians in this Medicare group
San Francisco, CA 94122
- Reassigned Medicare billing, California enrollment
- 5,544 clinicians in this Medicare group
San Francisco, CA 94143
- Reassigned Medicare billing, California enrollment
- 723 clinicians in this Medicare group
San Francisco, CA 94116
- Reassigned Medicare billing, California enrollment
- 20,078 clinicians in this Medicare group
Burlingame, CA 94010
- Reassigned Medicare billing, California enrollment
- 115 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.
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.
SAN FRANCISCO, CA 94143
SAN FRANCISCO, CA 94143
SAN FRANCISCO, CA 94143
SAN FRANCISCO, CA 94143
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 Wilson Ly's NPI number?
The NPI number for Wilson Ly is 1063653582. It was assigned to this individual provider in the NPPES registry on March 12, 2009.
Where is Wilson Ly located?
Wilson Ly practices at 400 Parnassus Ave, San Francisco, CA 94143. The listed phone number is (415) 476-1000.
What is Wilson Ly's specialty?
The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.
Is Wilson Ly enrolled in Medicare?
Yes. Wilson Ly 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 Wilson Ly's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Wilson Ly reassigns Medicare benefits to 5 organizations: University Of California San Francisco (San Francisco, CA), Ucsf Medical Group Business Services (San Francisco, CA), University Anesthesia Medical Group (San Francisco, CA), Permanente Medical Group Inc (San Francisco, CA) and Anesthesia Care Associates Medical Group Inc (Burlingame, 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 Wilson Ly'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 Wilson Ly was last updated on May 16, 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. Wilson Oai Ly, MD, PHARMD · NPI 1063653582
Anesthesiology physician in San Francisco, California. Individual provider, active in the CMS NPPES registry since March 12, 2009.
## Identity
- **NPI:** 1063653582 (Entity type: Individual)
- **Enumerated:** March 12, 2009
- **Primary specialty:** Anesthesiology · taxonomy 207L00000X
- **State license:** A181380 (California)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 400 PARNASSUS AVE, San Francisco, CA 94143-2202
- **Phone:** (415) 476-1000
## 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:** 5 organizations under Medicare reassignment (form CMS-855R): University Of California San Francisco (NPI 1346329380, San Francisco, CA); Ucsf Medical Group Business Services (NPI 1477624104, San Francisco, CA); University Anesthesia Medical Group (NPI 1528137296, San Francisco, CA); Permanente Medical Group Inc (NPI 1841373800, San Francisco, CA); Anesthesia Care Associates Medical Group Inc (NPI 1215985023, Burlingame, CA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of California, San Francisco School Of Medicine, class of 2019
## Record status
- **NPPES last updated:** May 16, 2024
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Source: [NPI Profile](https://npiprofile.com/npi/1063653582) · Data from the CMS NPPES public registry.