Quick answers
- Where does Helen Lam see patients?
- Medicare's clinician data lists 2 practice locations, including San Leandro, CA and Oakland, CA. Call before your visit to confirm the address.
- What is Helen Lam's specialty?
- Medicare lists Optometry as the primary specialty.
- Does Helen Lam accept Medicare assignment?
- Yes. Medicare's clinician data says Helen Lam accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
- What is the phone number for Helen Lam?
- (510) 614-2020, as listed in official Medicare / NPI Registry data.
- What is Helen Lam's NPI number?
- 1699348607. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Practice locations
Addresses where Helen Lam is enrolled with Medicare (CMS data updated 2026-10-02).
- 1332 E 14th StSan Leandro, CA 94577 (510) 614‑2020
- 3330 Grand AveOakland, CA 94610 (510) 832‑3162
Group practices
Medicare enrollment lists Helen Lam as a member of these groups (CMS data updated 2026-10-02).
- Angela Cheung Od Optometric Corporation4 clinicians in the group
- Flores Optometry Inc3 clinicians in the group
Specialties
- Optometryprimary
Other optometrists in San Leandro
Clinicians with the same Medicare primary specialty in San Leandro, CA — not a recommendation.
Clinician information
| Credential | OD |
|---|---|
| Medical school | State University Of New York - State College Optometry |
| Graduation year | 2021 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1699348607 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians