MADELINE YUNG
NPI 1285098707
Ophthalmology in San Francisco, CA
About Madeline Yung NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MADELINE YUNG (NPI 1285098707) is an individual ophthalmology provider in San Francisco, California, licensed in California (A152481) and active in the NPI registry since April 2016. She is enrolled in Medicare PECOS, maintains a secondary practice location in Elk Grove, and is a graduate of University Of California, Geffen School Of Medicine (2016).
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Location 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
Madeline Yung 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 Madeline Yung 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 94110
- Reassigned Medicare billing, California enrollment
- 842 clinicians in this Medicare group
San Francisco, CA 94143
- Reassigned Medicare billing, California enrollment
- 2,112 clinicians in this Medicare group
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
Davis, CA 95616
- Reassigned Medicare billing, California enrollment
- 2,570 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 17
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 94110 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.
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 Madeline Yung's NPI number?
The NPI number for Madeline Yung is 1285098707. It was assigned to this individual provider in the NPPES registry on April 11, 2016.
Where is Madeline Yung located?
Madeline Yung practices at 1001 Potrero Avenue, Bldg. 5, 4M, San Francisco, CA 94110. The listed phone number is (628) 206-8304.
What is Madeline Yung's specialty?
The primary specialty registered for this NPI is Ophthalmology with taxonomy code 207W00000X.
Is Madeline Yung enrolled in Medicare?
Yes. Madeline Yung 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 Madeline Yung's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Madeline Yung reassigns Medicare benefits to 5 organizations: University Of California Sfgh Medical Group (San Francisco, CA), Regents Of The University Of California (San Francisco, CA), University Of California San Francisco (San Francisco, CA), Ucsf Medical Group Business Services (San Francisco, CA) and Regents Of The Univ Of Ca (Davis, 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 Madeline Yung'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 Madeline Yung was last updated on August 6, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.
# Madeline Yung · NPI 1285098707
Ophthalmology physician in San Francisco, California. Individual provider, active in the CMS NPPES registry since April 11, 2016.
## Identity
- **NPI:** 1285098707 (Entity type: Individual)
- **Enumerated:** April 11, 2016
- **Primary specialty:** Ophthalmology · taxonomy 207W00000X
- **State license:** A152481 (California)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 1001 POTRERO AVENUE, BLDG. 5, 4M, San Francisco, CA 94110
- **Phone:** (628) 206-8304 · **Fax:** (415) 206-6122
## 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 Sfgh Medical Group (NPI 1174598296, San Francisco, CA); Regents Of The University Of California (NPI 1235322348, San Francisco, CA); University Of California San Francisco (NPI 1346329380, San Francisco, CA); Ucsf Medical Group Business Services (NPI 1477624104, San Francisco, CA); Regents Of The Univ Of Ca (NPI 1053304071, Davis, CA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of California, Geffen School Of Medicine, class of 2016
## Record status
- **NPPES last updated:** August 6, 2021
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Source: [NPI Profile](https://npiprofile.com/npi/1285098707) · Data from the CMS NPPES public registry.