Mai K. Lai, MD
NPI 1841232717ActiveIndividual· Emergency Medicine· Pasadena, CA
Emergency Medicine (MD) with Exer Medical Corporation and 1 other group, practicing in Pasadena, California. In 2024 Medicare paid $32,200 for 271 patients, and Part D covered 294 of their prescriptions, 89% of them generic. Lists Ridgecrest Regional Hospital as a hospital affiliation.
Overview
| NPI | 1841232717 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jun 12, 2006 |
| Last updated in NPPES | Feb 24, 2014 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Emergency Medicine Primary | 207P00000X | A90320 | 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 - Emergency Medicine (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 271 |
|---|---|
| Services billed | 484 across 61 procedure codes |
| Paid by Medicare | $32,200 |
Part D prescriptions in 2024
| Prescriptions (claims) | 294 · 299 30-day fills |
|---|---|
| Patients | 194 |
| Total drug cost | $6,911 |
| Generic share | 89% of claims |
Education and affiliations
| Graduation year | 2002 |
|---|---|
| Medicare specialty | Emergency Medicine |
Medical groups
- Exer Medical CorporationHighland, CA · 340 clinicians
- Ridgecrest Regional HospitalRidgecrest, CA · 95 clinicians
Hospital affiliation
- Ridgecrest Regional HospitalRidgecrest, CA
Industry payments (Open Payments)
None reported for 2025 or 2024.
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 57 emergency medicine physicians in Pasadena · All emergency medicine physicians in California