DR. LISA CHUNG YUN MAK OD
NPI 1649944331
Optometrist in San Gabriel, CA
About Dr. Lisa Chung Yun Mak Od NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. LISA CHUNG YUN MAK OD (NPI 1649944331) is an individual optometrist in San Gabriel, California, licensed in California (34840) and active in the NPI registry since August 2021. She is enrolled in Medicare PECOS and maintains a secondary practice location in Long Beach.
NPPES Registry Identity
Specialties & Licenses
Other Names 1
Secondary Practice Location 1
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Dr. Lisa Chung Yun Mak Od is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
3Medicare enrollment records show Lisa Mak reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Norwalk, CA 90650
- Reassigned Medicare billing, California enrollment
- 28 clinicians in this Medicare group
Buena Park, CA 90621
- Reassigned Medicare billing, California enrollment
- 29 clinicians in this Medicare group
San Diego, CA 92128
- Reassigned Medicare billing, California enrollment
- 236 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 91776 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 2
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
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 Lisa Mak's NPI number?
The NPI number for Lisa Mak is 1649944331. It was assigned to this individual provider in the NPPES registry on August 5, 2021. The provider is also known as Dr. Lisa Chung Yun Chan Od.
Where is Lisa Mak located?
Lisa Mak practices at 251 W Bencamp St, San Gabriel, CA 91776. The listed phone number is (626) 282-2567.
What is Lisa Mak's specialty?
The primary specialty registered for this NPI is Optometrist with taxonomy code 152W00000X.
Is Lisa Mak enrolled in Medicare?
Yes. Lisa Mak is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Lisa Mak's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Lisa Mak reassigns Medicare benefits to 3 organizations: First Optometric Care Of Northern California PC (Norwalk, CA), Third Optometric Care Of California (Buena Park, CA) and Total Vision PC (San Diego, 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 Lisa Mak's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Lisa Mak accept?
Health plans from Anthem Blue Cross and Blue Shield, Blue Cross Blue Shield of Wyoming, Blue Cross and Blue Shield of Louisiana, Blue Cross and Blue Shield of Montana and Blue Cross and Blue Shield of Oklahoma and 2 other insurers list Lisa Mak 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 Lisa Mak was last updated on December 22, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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. Lisa Chung Yun Mak, OD · NPI 1649944331
Optometrist provider in San Gabriel, California. Individual provider, active in the CMS NPPES registry since August 5, 2021.
## Identity
- **NPI:** 1649944331 (Entity type: Individual)
- **Enumerated:** August 5, 2021
- **Primary specialty:** Optometrist · taxonomy 152W00000X
- **State license:** 34840 (California)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 251 W BENCAMP ST, San Gabriel, CA 91776-3798
- **Phone:** (626) 282-2567
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health
- **Bills Medicare through:** 3 organizations under Medicare reassignment (form CMS-855R): First Optometric Care Of Northern California PC (NPI 1316532898, Norwalk, CA); Third Optometric Care Of California (NPI 1891468849, Buena Park, CA); Total Vision PC (NPI 1356813711, San Diego, CA) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** December 22, 2021
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Source: [NPI Profile](https://npiprofile.com/npi/1649944331) · Data from the CMS NPPES public registry.