Mary Claire Therese Li, DNP, ARNP, FNP-C
NPI 1578287454ActiveIndividual· Nurse Practitioner· Des Moines, IA
Nurse Practitioner (DNP, ARNP, FNP-C) with Mercy Clinics Inc, practicing in Des Moines, Iowa. Their prescriptions cost Medicare Part D more than their services did: $2,166,446 for 3,620 claims, against $54,309 paid for services in 2024. Tandem Diabetes Care, Inc. was the largest of 4 companies reporting payments in 2025, $294.26 in all, mostly food and beverage. Lists Mercyone Des Moines Medical Center and 1 other hospital as hospital affiliations.
Overview
| NPI | 1578287454 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | DNP, ARNP, FNP-C |
| Sole proprietor | No |
| NPI issued | Oct 3, 2022 |
| Last updated in NPPES | Aug 1, 2023 |
| Certified by provider | Aug 1, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Nurse Practitioner Primary | 363L00000X | A171278 | IA |
| Family Medicine | 207Q00000X | A171278 | IA |
| Nurse Practitioner, Family | 363LF0000X | A171278 | IA |
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 - Family Practice (IA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 368 |
|---|---|
| Services billed | 1,087 across 12 procedure codes |
| Paid by Medicare | $54,309 |
Part D prescriptions in 2024
| Prescriptions (claims) | 3,620 · 6,036 30-day fills |
|---|---|
| Patients | 500 |
| Total drug cost | $2,166,446 |
| Generic share | 22% of claims |
Education and affiliations
| Graduation year | 2022 |
|---|---|
| Medicare specialty | Family Practice |
| Telehealth | Offers telehealth |
Medical group
- Mercy Clinics IncClive, IA · 443 clinicians
Hospital affiliations
- Mercyone Des Moines Medical CenterDes Moines, IA
- Unitypoint Health - Des Moines Iowa Methodist MediDes Moines, IA
Industry payments (Open Payments)
- 2025$294.26 · 4 payments from 4 companies
- 2024$382.59 · 7 payments from 4 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Tandem Diabetes Care, Inc. | $121.13 | 1 |
| Bayer Healthcare Pharmaceuticals Inc. | $80.64 | 1 |
| Dexcom, Inc. | $71.13 | 1 |
| Beta Bionics, Inc. | $21.36 | 1 |
What the 2025 payments were for
- Food and Beverage$294.26 · 4 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 155 nurse practitioners in Des Moines · All nurse practitioners in Iowa