David A. Clark, DO
NPI 1578760278ActiveIndividual· Psychiatry & Neurology, Neurology· Springfield, OR
Psychiatry & Neurology, Neurology (DO) in Springfield, Oregon, trained at Michigan State University College of Osteopathic Medicine (class of 2012). Their prescriptions cost Medicare Part D more than their services did: $4,404,218 for 3,707 claims, against $172,828 paid for services in 2024. Tg Therapeutics, Inc. was the largest of 14 companies reporting payments in 2025, $267,412 in all, mostly speaking and faculty fees.
Overview
| NPI | 1578760278 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | DO |
| Sole proprietor | No |
| NPI issued | Jun 27, 2007 |
| Last updated in NPPES | May 13, 2021 |
| Certified by provider | May 13, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Psychiatry & Neurology, Neurology Primary | 2084N0400X | DO156992 | OR |
| Psychiatry & Neurology, Neurology | 2084N0400X | 5101017272 | MI |
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 - Neurology (OR) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 357 |
|---|---|
| Services billed | 19,429 across 12 procedure codes |
| Paid by Medicare | $172,828 |
Part D prescriptions in 2024
| Prescriptions (claims) | 3,707 · 5,793 30-day fills |
|---|---|
| Patients | 500 |
| Total drug cost | $4,404,218 |
| Generic share | 84% of claims |
Education and affiliations
| Medical school | Michigan State University College of Osteopathic Medicine |
|---|---|
| Graduation year | 2012 |
| Medicare specialty | Neurology |
| Telehealth | Offers telehealth |
Medical group
- Neurology Associates Eugene-Springfield PCSpringfield, OR · 9 clinicians
Hospital affiliations
- Bay Area HospitalCoos Bay, OR
- Mercy Medical CenterRoseburg, OR
- Peace Harbor Medical CenterFlorence, OR
- Sacred Heart Medical Center - RiverbendSpringfield, OR
- Samaritan Albany General HospitalAlbany, OR
Industry payments (Open Payments)
- 2025$267,412 · 339 payments from 14 companies
- 2024$188,650 · 229 payments from 16 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Tg Therapeutics, Inc. | $54,712 | 56 |
| Janssen Biotech, Inc. | $40,190 | 48 |
| Alexion Pharmaceuticals, Inc. | $36,247 | 50 |
| Ucb, Inc. | $35,427 | 54 |
| Argenx US, Inc. | $32,731 | 52 |
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$217,921 · 74 payments
- Travel and Lodging$32,006 · 121 payments
- Consulting Fee$12,004 · 9 payments
- Food and Beverage$5,480 · 135 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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