Kathy Mao, O.D.
NPI 1053830158ActiveIndividual· Optometrist· Santa Ana, CA
Optometrist (O.D.) with Serve the People, Inc., practicing in Santa Ana, California. Their prescriptions cost Medicare Part D more than their services did: $96,963 for 221 claims, against $1,436 paid for services in 2024. Alcon Vision LLC was the largest of 2 companies reporting payments in 2025, $85.83 in all, mostly food and beverage.
Overview
| NPI | 1053830158 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | O.D. |
| Sole proprietor | Yes |
| NPI issued | Sep 11, 2017 |
| Last updated in NPPES | Aug 21, 2025 |
| Certified by provider | Aug 21, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Optometrist Primary | 152W00000X | OPT33828-TLG | CA |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Nov 10, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 11, 2026 | No match | — |
| New York OMIG · Nov 11, 2026 | No match | — |
| Ohio Medicaid · Nov 11, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 11, 2026 | No match | — |
| Washington HCA · Nov 11, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Optometry (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 19 |
|---|---|
| Services billed | 26 across 6 procedure codes |
| Paid by Medicare | $1,436 |
Part D prescriptions in 2024
| Prescriptions (claims) | 221 · 354 30-day fills |
|---|---|
| Patients | 87 |
| Total drug cost | $96,963 |
| Generic share | 29% of claims |
Education and affiliations
| Graduation year | 2017 |
|---|---|
| Medicare specialty | Optometry |
Medical group
- Serve the People, Inc.Santa Ana, CA · 5 clinicians
Industry payments (Open Payments)
- 2025$85.83 · 4 payments from 2 companies
- 2024$237.22 · 10 payments from 5 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Alcon Vision LLC | $70.48 | 3 |
| Bausch & Lomb Americas Inc. | $15.35 | 1 |
What the 2025 payments were for
- Food and Beverage$85.83 · 4 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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