Mary Lynne Barringer, WHNP-BC
NPI 1952647083ActiveIndividual· Nurse Practitioner, Obstetrics & Gynecology· Dearborn, MI
Nurse Practitioner, Obstetrics & Gynecology (WHNP-BC) in Dearborn, Michigan, trained at Wayne State University School of Medicine (class of 2012). Their prescriptions cost Medicare Part D more than their services did: $681,523 for 969 claims, against $7,153 paid for services in 2024. Astrazeneca Pharmaceuticals LP was the largest of 5 companies reporting payments in 2025, $670.90 in all, mostly food and beverage.
Overview
| NPI | 1952647083 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | WHNP-BC |
| Sole proprietor | No |
| NPI issued | Dec 18, 2012 |
| Last updated in NPPES | Oct 26, 2020 |
| Certified by provider | Oct 26, 2020 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Nurse Practitioner, Obstetrics & Gynecology Primary | 363LX0001X | 4704222077 | 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 | 98 |
|---|---|
| Services billed | 139 across 5 procedure codes |
| Paid by Medicare | $7,153 |
Part D prescriptions in 2024
| Prescriptions (claims) | 969 · 1,108 30-day fills |
|---|---|
| Patients | 154 |
| Total drug cost | $681,523 |
| Generic share | 92% of claims |
Education and affiliations
| Medical school | Wayne State University School of Medicine |
|---|---|
| Graduation year | 2012 |
| Medicare specialty | Nurse Practitioner |
Medical groups
- Edward W Sparrow Hospital AssociationLansing, MI · 730 clinicians
- Sparrow Carson HospitalGreenville, MI · 64 clinicians
Hospital affiliations
- Beaumont Hospital - DearbornDearborn, MI
- Edward W Sparrow HospitalLansing, MI
- Memorial HealthcareOwosso, MI
- Sparrow Ionia HospitalIonia, MI
- University of Michigan Health - Sparrow EatonCharlotte, MI
Industry payments (Open Payments)
- 2025$670.90 · 30 payments from 5 companies
- 2024$218.27 · 8 payments from 4 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Astrazeneca Pharmaceuticals LP | $198.12 | 18 |
| Merck Sharp & Dohme LLC | $152.56 | 5 |
| Abbvie Inc. | $151.09 | 2 |
| Caris Mpi, Inc. | $144.50 | 4 |
| Pfizer Inc. | $24.63 | 1 |
What the 2025 payments were for
- Food and Beverage$670.90 · 30 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records