Kathleen Mai, O.D., Optometry Corp
NPI 1730879891 · Optometrist · Castro Valley, CA
Enrolled with Medicare as Part B Supplier - Clinic/Group Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Kathleen Mai, O.D., Optometry Corp is a Optometrist organization in Castro Valley, CA (NPI 1730879891).
Provider details
- NPI number
- 1730879891
- Entity type
- Organization
- Primary specialty
- OptometristEye and Vision Services Providers
- Organization subpart
- No
- Authorized official
- Kathleen Mai, Optometrist(510) 388-7379
Specialties & taxonomies
Eye and Vision Services Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
3 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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.
Practice location
Mailing address
Registry dates
- Enumerated
- 2023-05-11
- Last updated
- 2023-05-11
- Certified
- 2023-05-11
Frequently asked questions
- What is Kathleen Mai, O.D., Optometry Corp's NPI number?
- Kathleen Mai, O.D., Optometry Corp's National Provider Identifier (NPI) is 1730879891, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Kathleen Mai, O.D., Optometry Corp?
- Kathleen Mai, O.D., Optometry Corp is classified in the NPPES registry as Optometrist (Eye and Vision Services Providers).
- Where is Kathleen Mai, O.D., Optometry Corp located?
- Kathleen Mai, O.D., Optometry Corp's practice location on file with NPPES is 3550 Castro Valley Blvd, Castro Valley, CA 94546-4402.
- What is Kathleen Mai, O.D., Optometry Corp's phone number?
- The practice phone number listed in the NPPES registry for Kathleen Mai, O.D., Optometry Corp is (510) 581-1680.
- Does Kathleen Mai, O.D., Optometry Corp accept Medicare?
- Kathleen Mai, O.D., Optometry Corp is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Who is the authorized official for Kathleen Mai, O.D., Optometry Corp?
- The authorized official listed on Kathleen Mai, O.D., Optometry Corp's NPPES record is Kathleen Mai, Optometrist. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Kathleen Mai, O.D., Optometry Corp's NPI active?
- Yes — Kathleen Mai, O.D., Optometry Corp's NPI (1730879891) is active in the NPPES registry as of the last update on 2023-05-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.