Alexander Chiang, M.D.
NPI 1083931521ActiveIndividual· Obstetrics & Gynecology· Santa Monica, CA
Obstetrics & Gynecology (M.D.) in Santa Monica, California, trained at University of California, Irvine, California College of Medicine (class of 2010). Their prescriptions cost Medicare Part D more than their services did: $17,984 for 146 claims, against $10,523 paid for services in 2024. Intuitive Surgical, Inc. was the largest of 3 companies reporting payments in 2025, $1,263 in all, mostly food and beverage.
Overview
| NPI | 1083931521 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | Yes |
| NPI issued | Apr 23, 2010 |
| Last updated in NPPES | Feb 13, 2015 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Obstetrics & Gynecology Primary | 207V00000X | A120316 | 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) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 49 |
|---|---|
| Services billed | 147 across 25 procedure codes |
| Paid by Medicare | $10,523 |
Part D prescriptions in 2024
| Prescriptions (claims) | 146 · 295 30-day fills |
|---|---|
| Patients | 42 |
| Total drug cost | $17,984 |
| Generic share | 69% of claims |
Education and affiliations
| Medical school | University of California, Irvine, California College of Medicine |
|---|---|
| Graduation year | 2010 |
| Medicare specialty | Obstetrics/Gynecology |
| Telehealth | Offers telehealth |
Medical group
- The Regents of the University of CaliforniaLos Angeles, CA · 56 clinicians
Hospital affiliations
- Ronald Reagan UCLA Medical CenterLos Angeles, CA
- Santa Monica - UCLA Med Ctr & Orthopaedic HospitalSanta Monica, CA
Industry payments (Open Payments)
- 2025$1,263 · 7 payments from 3 companies
- 2024$4,118 · 11 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Intuitive Surgical, Inc. | $1,103 | 5 |
| Sumitomo Pharma America, Inc. | $123.43 | 1 |
| Bayer Healthcare Pharmaceuticals Inc. | $36.67 | 1 |
What the 2025 payments were for
- Food and Beverage$728.23 · 5 payments
- Travel and Lodging$534.44 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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