Doris M. Van Byssum I, PSY.D.
NPI 1063515369ActiveIndividual· Nurse Practitioner, Psych/Mental Health· Wheaton, IL
Nurse Practitioner, Psych/Mental Health (PSY.D.) with Genesis Clinical Services, practicing in Wheaton, Illinois. Their prescriptions cost Medicare Part D more than their services did: $69,665 for 1,141 claims, against $39,727 paid for services in 2024. Otsuka America Pharmaceutical, Inc. was the largest of 11 companies reporting payments in 2025, $5,821 in all, mostly speaking and faculty fees.
Overview
| NPI | 1063515369 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | PSY.D. |
| Sole proprietor | No |
| NPI issued | Sep 6, 2006 |
| Last updated in NPPES | Mar 14, 2017 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Nurse Practitioner, Psych/Mental Health Primary | 363LP0808X | 209.010527041.189584 | IL |
| Psychologist, Clinical | 103TC0700X | 071-004744 | IL |
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 - Clinical Psychologist (IL); Practitioner - Nurse Practitioner (IL) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 68 |
|---|---|
| Services billed | 601 across 12 procedure codes |
| Paid by Medicare | $39,727 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,141 · 1,970 30-day fills |
|---|---|
| Patients | 98 |
| Total drug cost | $69,665 |
| Generic share | 96% of claims |
Education and affiliations
| Graduation year | 1982 |
|---|---|
| Medicare specialty | Nurse Practitioner |
| Telehealth | Offers telehealth |
Medical group
- Genesis Clinical ServicesWheaton, IL · 15 clinicians
Industry payments (Open Payments)
- 2025$5,821 · 24 payments from 11 companies
- 2024$5,614 · 38 payments from 14 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Otsuka America Pharmaceutical, Inc. | $5,559 | 11 |
| E.R. Squibb & Sons, L.L.C. | $45.85 | 2 |
| Axsome Therapeutics, Inc. | $39.63 | 2 |
| Abbvie Inc. | $31.42 | 2 |
| Vanda Pharmaceuticals Inc. | $28.50 | 1 |
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$4,366 · 3 payments
- Travel and Lodging$859.25 · 2 payments
- Food and Beverage$595.35 · 19 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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