BARRY Y.P. FUNG M.D.
NPI 1225079205
Ophthalmology in Los Altos, CA
About Barry Y.p. Fung M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
BARRY Y.P. FUNG M.D. (NPI 1225079205) is an individual ophthalmology provider in Los Altos, California, licensed in California (A70770) and active in the NPI registry since June 2006. He is enrolled in Medicare PECOS and is a graduate of Other (1989).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 3
Accepted Insurance
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
Barry Y.p. Fung 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 Reassignment
Medicare enrollment records show Barry Fung reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
San Jose, CA 95122
- 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.
Areas of Expertise CMS Part B claims 22
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 94022 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 7
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
LOS ALTOS, CA 94022
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 Barry Fung's NPI number?
The NPI number for Barry Fung is 1225079205. It was assigned to this individual provider in the NPPES registry on June 9, 2006.
Where is Barry Fung located?
Barry Fung practices at 4906 El Camino Real Ste B, Los Altos, CA 94022. The listed phone number is (650) 967-7834.
What is Barry Fung's specialty?
The primary specialty registered for this NPI is Ophthalmology with taxonomy code 207W00000X.
Is Barry Fung enrolled in Medicare?
Yes. Barry Fung 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 organization bills Medicare for Barry Fung's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Barry Fung reassigns Medicare benefits to Silicon Valley Eye Institute, A Medical Corporation (San Jose, CA). The 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 Barry Fung's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Barry Fung accept?
Health plans from Anthem Blue Cross and Blue Shield list Barry Fung as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
When was this NPI record last updated?
The NPPES record for Barry Fung was last updated on November 10, 2016. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 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.
# Barry Y.p. Fung, M.D. · NPI 1225079205
Ophthalmology physician in Los Altos, California. Individual provider, active in the CMS NPPES registry since June 9, 2006.
## Identity
- **NPI:** 1225079205 (Entity type: Individual)
- **Enumerated:** June 9, 2006
- **Primary specialty:** Ophthalmology · taxonomy 207W00000X
- **State license:** A70770 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 4906 EL CAMINO REAL, STE B, Los Altos, CA 94022-1449
- **Phone:** (650) 967-7834
## 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:** Silicon Valley Eye Institute, A Medical Corporation (NPI 1417031832, San Jose, CA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 1989
## Record status
- **NPPES last updated:** November 10, 2016
- **Other identifiers:** Medicaid 7180235 (CA); Medicare UPIN G29613 (CA); Medicare PIN 00A707700 (CA)
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Source: [NPI Profile](https://npiprofile.com/npi/1225079205) · Data from the CMS NPPES public registry.