Arthur J. Daigneault, MD
NPI 1609845361ActiveIndividual· Internal Medicine· Laguna Hills, CA
Internal Medicine (MD) in Laguna Hills, California, trained at University of California, Irvine, California College of Medicine (class of 1993). Their prescriptions cost Medicare Part D more than their services did: $424,738 for 7,378 claims, against $132,890 paid for services in 2024.
Overview
| NPI | 1609845361 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Mar 15, 2006 |
| Last updated in NPPES | Nov 15, 2025 |
| Certified by provider | Nov 15, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | G79967 | 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 | 286 |
|---|---|
| Services billed | 1,738 across 39 procedure codes |
| Paid by Medicare | $132,890 |
Part D prescriptions in 2024
| Prescriptions (claims) | 7,378 · 17,747 30-day fills |
|---|---|
| Patients | 557 |
| Total drug cost | $424,738 |
| Generic share | 91% of claims |
Education and affiliations
| Medical school | University of California, Irvine, California College of Medicine |
|---|---|
| Graduation year | 1993 |
| Medicare specialty | Internal Medicine |
Medical groups
- Healthcare Partners Affiliates Medical GroupAnaheim, CA · 754 clinicians
- Paloma Medical Group IncSan Juan Capistrano, CA · 19 clinicians
Hospital affiliations
- Hoag Memorial Hospital PresbyterianNewport Beach, CA
- Memorialcare Saddleback Medical CenterLaguna Hills, CA
- Uci Health-OrangeOrange, CA
Other facilities
- Care Plus Home HealthHome health agency · Laguna Hills, 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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