Alan Y. Lo, MD
NPI 1982683637ActiveIndividual· Internal Medicine· Laguna Hills, CA
Internal Medicine (MD) in Laguna Hills, California, trained at Jefferson Medical College of Thomas Jefferson University (class of 1990). Their prescriptions cost Medicare Part D more than their services did: $977,662 for 12,556 claims, against $223,724 paid for services in 2024. Boehringer Ingelheim Pharmaceuticals, Inc. was the largest of 16 companies reporting payments in 2025, $1,457 in all, mostly food and beverage.
Overview
| NPI | 1982683637 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jan 11, 2006 |
| Last updated in NPPES | May 31, 2011 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | G73266 | CA |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Internal Medicine (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 372 |
|---|---|
| Services billed | 3,589 across 25 procedure codes |
| Paid by Medicare | $223,724 |
Part D prescriptions in 2024
| Prescriptions (claims) | 12,556 · 30,048 30-day fills |
|---|---|
| Patients | 831 |
| Total drug cost | $977,662 |
| Generic share | 89% of claims |
Education and affiliations
| Medical school | Jefferson Medical College of Thomas Jefferson University |
|---|---|
| Graduation year | 1990 |
| Medicare specialty | Internal Medicine |
| Telehealth | Offers telehealth |
Hospital affiliations
- Hoag Memorial Hospital PresbyterianNewport Beach, CA
- Memorialcare Saddleback Medical CenterLaguna Hills, CA
- Providence Mission HospitalMission Viejo, CA
Other facilities
- Home Health Plus Services, IncHome health agency · Arcadia, CA
- Mission Home Health of Irvine, LLCHome health agency · Irvine, CA
- Providence at Home With Compassus Home Health, Orange County SouthHome health agency · Irvine, CA
Industry payments (Open Payments)
- 2025$1,457 · 76 payments from 16 companies
- 2024$1,178 · 70 payments from 15 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Boehringer Ingelheim Pharmaceuticals, Inc. | $358.61 | 8 |
| Astrazeneca Pharmaceuticals LP | $263.84 | 29 |
| Glaxosmithkline, LLC. | $160.66 | 7 |
| Lilly USA, LLC | $148.53 | 7 |
| Salix Pharmaceuticals, A Division of Bausch Health US, LLC | $83.50 | 5 |
What the 2025 payments were for
- Food and Beverage$1,457 · 76 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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