Mary R. Kwaan, M.D., M.P.H.
NPI 1588732911ActiveIndividual· Colon & Rectal Surgery· Los Angeles, CA
Colon & Rectal Surgery (M.D., M.P.H.) in Los Angeles, California, trained at Harvard Medical School (class of 2001). 158 Medicare patients in 2024, $57,274 paid; nearly all of their 124 Part D prescriptions were generic (96%).
Overview
| NPI | 1588732911 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D., M.P.H. |
| Sole proprietor | Yes |
| NPI issued | Dec 2, 2006 |
| Last updated in NPPES | Dec 26, 2019 |
| Certified by provider | Dec 26, 2019 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Colon & Rectal Surgery Primary | 208C00000X | C154058 | CA |
| Surgery | 208600000X | C154058 | 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 - General Surgery (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 158 |
|---|---|
| Services billed | 329 across 44 procedure codes |
| Paid by Medicare | $57,274 |
Part D prescriptions in 2024
| Prescriptions (claims) | 124 · 142 30-day fills |
|---|---|
| Patients | 49 |
| Total drug cost | $3,289 |
| Generic share | 96% of claims |
Education and affiliations
| Medical school | Harvard Medical School |
|---|---|
| Graduation year | 2001 |
| Medicare specialty | General Surgery |
| Secondary specialties | Colorectal Surgery (Proctology) |
| Telehealth | Offers telehealth |
Medical group
- UCLA Associated General SurgeonsLos Angeles, CA · 46 clinicians
Hospital affiliations
- Ronald Reagan UCLA Medical CenterLos Angeles, CA
- Santa Monica - UCLA Med Ctr & Orthopaedic HospitalSanta Monica, CA
Other facilities
- Accentcare UCLA Health, LLCHome health agency · West Hills, CA
Industry payments (Open Payments)
None reported for 2025 or 2024.
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other Colon & Rectal Surgery providers in Los Angeles
- 1144505801
- 1801551387
- 1811006612
- 1033235841
- 1295749802
- 1710446760
- 1578095162
- 1164678082
- 1063684850
- 1417016163
- 1881695286
- 1538472956