DR. NGOC PHUONG LY MD, MPH
NPI 1730113820
Pediatrics - Pediatric Pulmonology in San Francisco, CA
About Dr. Ngoc Phuong Ly Md, Mph NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. NGOC PHUONG LY MD, MPH (NPI 1730113820) is an individual pediatric pulmonology provider in San Francisco, California, licensed in California (A100697) and active in the NPI registry since July 2006. She is enrolled in Medicare PECOS and is a graduate of University Of Rochester School Of Medicine And Dentistry (1998).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 5
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. Ngoc Phuong Ly Md, Mph 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
3Medicare enrollment records show Ngoc Ly reassigns Medicare billing to 3 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
- 1,159 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 Ngoc Ly's NPI number?
The NPI number for Ngoc Ly is 1730113820. It was assigned to this individual provider in the NPPES registry on July 11, 2006.
Where is Ngoc Ly located?
Ngoc Ly practices at 400 Parnassus Ave 2nd Floor, San Francisco, CA 94143. The listed phone number is (415) 353-2559.
What is Ngoc Ly's specialty?
The primary specialty registered for this NPI is Pediatrics, specializing in Pediatric Pulmonology, with taxonomy code 2080P0214X.
Is Ngoc Ly enrolled in Medicare?
Yes. Ngoc 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 Ngoc Ly's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Ngoc Ly reassigns Medicare benefits to 3 organizations: University Of California San Francisco (San Francisco, CA), Ucsf Medical Group Business Services (San Francisco, CA) and Ucsf Pediatrics Associates (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 Ngoc 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 Ngoc Ly was last updated on September 6, 2013. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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. Ngoc Phuong Ly, MD, MPH · NPI 1730113820
Pediatric Pulmonology physician in San Francisco, California. Individual provider, active in the CMS NPPES registry since July 11, 2006.
## Identity
- **NPI:** 1730113820 (Entity type: Individual)
- **Enumerated:** July 11, 2006
- **Primary specialty:** Pediatrics - Pediatric Pulmonology · taxonomy 2080P0214X
- **State license:** A100697 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 400 PARNASSUS AVE, 2ND FLOOR, San Francisco, CA 94143-2202
- **Phone:** (415) 353-2559 · **Fax:** (415) 353-2466
## 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:** 3 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); Ucsf Pediatrics Associates (NPI 1376614016, San Francisco, CA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Rochester School Of Medicine And Dentistry, class of 1998
## Record status
- **NPPES last updated:** September 6, 2013
- **Other identifiers:** Other 469767 (MA); Other J27996 (MA); Medicaid 2079976 (MA); and 2 more
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Source: [NPI Profile](https://npiprofile.com/npi/1730113820) · Data from the CMS NPPES public registry.