Cynthia W. Chao, DO A PROFESSIONAL CO
NPI 1720077274ActiveIndividual· Obstetrics & Gynecology· Los Alamitos, CA
Obstetrics & Gynecology (DO A PROFESSIONAL CO) in Los Alamitos, California, trained at Western University of Health Sciences College of Dental Med (class of 1997). Part D covered 103 prescriptions written in 2024, 90% of them generic. Mayne Pharma Commercial LLC was the largest of 3 companies reporting payments in 2025, $435.99 in all, mostly food and beverage.
Overview
| NPI | 1720077274 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | DO A PROFESSIONAL CO |
| Sole proprietor | Yes |
| NPI issued | Oct 18, 2005 |
| Last updated in NPPES | Apr 20, 2024 |
| Certified by provider | Apr 20, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Obstetrics & Gynecology Primary | 207V00000X | 20A7343 | CA |
| Obstetrics & Gynecology, Obstetrics | 207VX0000X | 20A7343 | 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 - Obstetrics/Gynecology (CA) |
|---|
Part D prescriptions in 2024
| Prescriptions (claims) | 103 · 214 30-day fills |
|---|---|
| Patients | 49 |
| Total drug cost | $9,553 |
| Generic share | 90% of claims |
Education and affiliations
| Medical school | Western University of Health Sciences College of Dental Med |
|---|---|
| Graduation year | 1997 |
| Medicare specialty | Obstetrics/Gynecology |
Medical group
- The Roads Foundation, IncCompton, CA · 61 clinicians
Hospital affiliations
- Memorialcare Long Beach Medical CenterLong Beach, CA
- Uci Health-OrangeOrange, CA
Industry payments (Open Payments)
- 2025$435.99 · 4 payments from 3 companies
- 2024$121.83 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Mayne Pharma Commercial LLC | $242.16 | 2 |
| Lilly USA, LLC | $106.69 | 1 |
| Novo Nordisk Inc | $87.14 | 1 |
What the 2025 payments were for
- Food and Beverage$435.99 · 4 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other OB-GYNs in Los Alamitos
- 1063477891
- 1619931599
- 1780648709
- 1982643763
- 1023105343
- 1144479940
- 1164800488
- 1225170491
- 1295150464
- 1356453088
- 1396817193
- 1407563307