Louise Byrnes, CRNP
NPI 1679047294ActiveIndividual· Nurse Practitioner, Psych/Mental Health· Coatesville, PA
Nurse Practitioner, Psych/Mental Health (CRNP) with Mhmo, Inc., practicing in Coatesville, Pennsylvania. Their prescriptions cost Medicare Part D more than their services did: $89,435 for 1,627 claims, against $33,722 paid for services in 2024. Iti, Inc. (D/B/A Intra-Cellular Therapies, Inc.) was the largest of 11 companies reporting payments in 2025, $1,694 in all, mostly food and beverage.
Overview
| NPI | 1679047294 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | CRNP |
| Sole proprietor | No |
| NPI issued | Jan 16, 2019 |
| Last updated in NPPES | Apr 21, 2021 |
| Certified by provider | Apr 21, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Nurse Practitioner, Psych/Mental Health Primary | 363LP0808X | SP022848 | PA |
| Registered Nurse | 163W00000X | RN684405 | PA |
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 - Nurse Practitioner (PA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 62 |
|---|---|
| Services billed | 546 across 7 procedure codes |
| Paid by Medicare | $33,722 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,627 · 2,681 30-day fills |
|---|---|
| Patients | 85 |
| Total drug cost | $89,435 |
| Generic share | 96% of claims |
Education and affiliations
| Graduation year | 2020 |
|---|---|
| Medicare specialty | Nurse Practitioner |
| Telehealth | Offers telehealth |
Medical group
- Mhmo, Inc.Plymouth Meeting, PA · 36 clinicians
Industry payments (Open Payments)
- 2025$1,694 · 50 payments from 11 companies
- 2024$1,260 · 53 payments from 10 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Iti, Inc. (D/B/A Intra-Cellular Therapies, Inc.) | $695.08 | 12 |
| Vanda Pharmaceuticals Inc. | $342.39 | 7 |
| Axsome Therapeutics, Inc. | $150.98 | 7 |
| Abbvie Inc. | $139.23 | 9 |
| Neurocrine Biosciences, Inc. | $113.82 | 4 |
What the 2025 payments were for
- Food and Beverage$1,688 · 49 payments
- Education$6.80 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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