Mary Margaret Krzystowczyk, NP
NPI 1912504978ActiveIndividual· Nurse Practitioner, Primary Care· Traverse City, MI
Nurse Practitioner, Primary Care (NP) with Munson Medical Center, practicing in Traverse City, Michigan. 28 Medicare patients in 2024, $4,694 paid; nearly all of their 185 Part D prescriptions were generic (92%).
Overview
| NPI | 1912504978 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | NP |
| Sole proprietor | Yes |
| NPI issued | Oct 2, 2020 |
| Last updated in NPPES | Jul 16, 2026 |
| Certified by provider | Jul 16, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Nurse Practitioner, Primary Care Primary | 363LP2300X | 4704301134 | MI |
| Nurse Practitioner, Gerontology | 363LG0600X | AG01200132 | CO |
| Nurse Practitioner, Primary Care | 363LP2300X | AG01200132 | CO |
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 | 28 |
|---|---|
| Services billed | 67 across 11 procedure codes |
| Paid by Medicare | $4,694 |
Part D prescriptions in 2024
| Prescriptions (claims) | 185 · 200 30-day fills |
|---|---|
| Patients | 51 |
| Total drug cost | $6,136 |
| Generic share | 92% of claims |
Education and affiliations
| Graduation year | 2018 |
|---|---|
| Medicare specialty | Nurse Practitioner |
Medical group
- Munson Medical CenterTraverse City, MI · 384 clinicians
Industry payments (Open Payments)
None reported for 2025 or 2024.
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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