Margot Lynne Chadwick, RN, NP
NPI 1619213451ActiveIndividual· Nurse Practitioner· Kalamazoo, MI
Nurse Practitioner (RN, NP) with County of Macomb and 2 other groups, practicing in Kalamazoo, Michigan. Their prescriptions cost Medicare Part D more than their services did: $2,654,702 for 7,828 claims, against $12,338 paid for services in 2024. Iti, Inc. (D/B/A Intra-Cellular Therapies, Inc.) was the largest of 10 companies reporting payments in 2025, $2,449 in all, mostly food and beverage. Lists Beacon Allegan and 3 other hospitals as hospital affiliations.
Overview
| NPI | 1619213451 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | RN, NP |
| Sole proprietor | Yes |
| NPI issued | Dec 26, 2012 |
| Last updated in NPPES | Aug 15, 2013 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Nurse Practitioner Primary | 363L00000X | 4704147243 | MI |
| Registered Nurse, Psych/Mental Health, Adult | 163WP0809X | 4704147243 | MI |
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 - Nurse Practitioner (MI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 85 |
|---|---|
| Services billed | 222 across 3 procedure codes |
| Paid by Medicare | $12,338 |
Part D prescriptions in 2024
| Prescriptions (claims) | 7,828 · 8,147 30-day fills |
|---|---|
| Patients | 338 |
| Total drug cost | $2,654,702 |
| Generic share | 89% of claims |
Education and affiliations
| Graduation year | 1980 |
|---|---|
| Medicare specialty | Nurse Practitioner |
| Telehealth | Offers telehealth |
Medical groups
- County of MacombClinton Township, MI · 82 clinicians
- Kalamazoo County Community Mental Health AuthorityKalamazoo, MI · 38 clinicians
- Case Management of Michigan, Inc.Kalamazoo, MI · 2 clinicians
Hospital affiliations
- Beacon AlleganAllegan, MI
- Bronson Lakeview HospitalPaw Paw, MI
- Bronson Methodist HospitalKalamazoo, MI
- Bronson South Haven HospitalSouth Haven, MI
Industry payments (Open Payments)
- 2025$2,449 · 63 payments from 10 companies
- 2024$2,673 · 79 payments from 10 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Iti, Inc. (D/B/A Intra-Cellular Therapies, Inc.) | $610.34 | 11 |
| Otsuka America Pharmaceutical, Inc. | $434.05 | 11 |
| Alkermes, Inc. | $356.65 | 13 |
| Teva Pharmaceuticals USA, Inc. | $323.33 | 10 |
| Neurocrine Biosciences, Inc. | $231.77 | 5 |
What the 2025 payments were for
- Food and Beverage$2,296 · 61 payments
- Education$152.98 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 68 nurse practitioners in Kalamazoo · All nurse practitioners in Michigan