Lisa Mak, OD
NPI 1649944331 · Optometrist · San Gabriel, CA
Enrolled with Medicare as Practitioner - Optometry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Lisa Mak, OD is a Optometrist provider in San Gabriel, CA (NPI 1649944331).
Provider details
- NPI number
- 1649944331
- Entity type
- Individual
- Primary specialty
- OptometristEye and Vision Services Providers
- Credential
- OD
- Sex
- Female
- Sole proprietor
- Yes
- License
- 34840 (CA)
Specialties & taxonomies
Eye and Vision Services Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
4 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
2 documented practice locations
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$294 across 14 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (1)
- 6440 E Pacific Coast Hwy Spc B-165Long Beach, CA 90803-4268Phone: (562) 280-2148
Registry dates
- Enumerated
- 2021-08-05
- Last updated
- 2021-12-22
- Certified
- 2021-12-22
Frequently asked questions
- What is Lisa Mak's NPI number?
- Lisa Mak's National Provider Identifier (NPI) is 1649944331, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Lisa Mak's specialty?
- Lisa Mak is listed in the NPPES registry with a primary specialty of Optometrist (Eye and Vision Services Providers).
- Where is Lisa Mak located?
- Lisa Mak's practice location on file with NPPES is 251 W Bencamp St, San Gabriel, CA 91776-3798.
- What is Lisa Mak's phone number?
- The practice phone number listed in the NPPES registry for Lisa Mak is (626) 282-2567.
- Does Lisa Mak accept Medicare?
- Lisa Mak is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Lisa Mak's NPI active?
- Yes — Lisa Mak's NPI (1649944331) is active in the NPPES registry as of the last update on 2021-12-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.