Daniel Allen Nadeau, MD
NPI 1215902226ActiveIndividual· Internal Medicine, Endocrinology, Diabetes & Metabolism· Newport Beach, CA
Internal Medicine, Endocrinology, Diabetes & Metabolism (MD) in Newport Beach, California, trained at Tufts University School of Medicine (class of 1988). Their prescriptions cost Medicare Part D more than their services did: $3,031,563 for 6,297 claims, against $129,288 paid for services in 2024. Lilly USA, LLC was the largest of 18 companies reporting payments in 2025, $145,821 in all, mostly speaking and faculty fees.
Overview
| NPI | 1215902226 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Feb 22, 2006 |
| Last updated in NPPES | Apr 20, 2018 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Endocrinology, Diabetes & Metabolism Primary | 207RE0101X | G88930 | CA |
| Internal Medicine | 207R00000X | 11513 | NH |
| Internal Medicine, Endocrinology, Diabetes & Metabolism | 207RE0101X | 11513 | NH |
| Internal Medicine, Endocrinology, Diabetes & Metabolism | 207RE0101X | 013924 | ME |
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 - Endocrinology (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 395 |
|---|---|
| Services billed | 3,738 across 21 procedure codes |
| Paid by Medicare | $129,288 |
Part D prescriptions in 2024
| Prescriptions (claims) | 6,297 · 14,878 30-day fills |
|---|---|
| Patients | 626 |
| Total drug cost | $3,031,563 |
| Generic share | 51% of claims |
Education and affiliations
| Medical school | Tufts University School of Medicine |
|---|---|
| Graduation year | 1988 |
| Medicare specialty | Endocrinology |
| Telehealth | Offers telehealth |
Medical group
- Hoag ClinicNewport Beach, CA · 460 clinicians
Hospital affiliation
- Hoag Memorial Hospital PresbyterianNewport Beach, CA
Industry payments (Open Payments)
- 2025$145,821 · 216 payments from 18 companies
- 2024$122,363 · 235 payments from 21 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Lilly USA, LLC | $68,960 | 96 |
| Novo Nordisk Inc | $59,941 | 66 |
| Dexcom, Inc. | $11,608 | 17 |
| Boehringer Ingelheim Pharmaceuticals, Inc. | $4,301 | 8 |
| Sequel Med Tech, LLC | $281.19 | 5 |
What the 2025 payments were for
- Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program$123,381 · 67 payments
- Compensation for serving as faculty or as a speaker for a medical education program$10,724 · 3 payments
- Travel and Lodging$6,917 · 53 payments
- Food and Beverage$4,799 · 93 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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