MARK W ZILKOSKI (MD) – Family Medicine Physician, NPI 1801909080
Family Medicine Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
607 FAMILY PRACTICE in MT
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Provider Addresses for MARK W ZILKOSKI (MD)
Listerud Rural Health Clinic, 301, Knapp Street, Wolf Point, Wolf Point District, Roosevelt County, Montana, 59201, United States
WOLF POINT, MT 592011826
Phone: (406) 653-2150
Fax: (406) 653-6591
Mailing address matches the actual address.
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
No Open Payments data available for this provider.
This can happen when there are no reportable CMS Open Payments records.
Medicare Enrollment & Revalidation
Source: CMS public data · Not endorsed by CMS ·
Educational use only—not medical, billing, or legal advice.
PECOS enrollment status
Participating (accepts Medicare assignment)
Enrollment effective: 2010-07-23
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking this Medicare enrollment for revalidation, but has not published a due date.
Enrollment records
1
Earliest due date
Not assigned (TBD)
CMS data updated
2026-06-01
Revalidation progress
- Medicare enrolled
- On CMS revalidation list
- Due date assigned
- Revalidate in PECOS
CMS enrollment records
| Enrollment ID | Type | Specialty | State | Due date |
|---|---|---|---|---|
| I20100723000424 | I | Family Practice | MT | TBD |
What to do next
- No action required while the due date shows TBD.
- Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
- Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.
Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS
Medicare Utilization (FFS)
Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·
Educational use only—not medical, billing, or legal advice.
Top Medicare procedures (2023) · refreshed 2026-05-27
| HCPCS | Description | Services | Beneficiaries | Medicare allowed |
|---|---|---|---|---|
| 99284 | Emergency department visit with moderate level of medical decision making | 56 | 45 | $0 |
| 99283 | Emergency department visit with low level of medical decision making | 47 | 42 | $0 |
| 99232 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 26 | 14 | $0 |
| 99238 | Hospital discharge day management, 30 minutes or less | 23 | 22 | $0 |
| 99222 | Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 23 | 20 | $0 |
Insurance plans in this area (ZIP 59201)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Nurse Practitioner | MT | |
| - | MT | |
| Nurse Practitioner | IL | |
| Family Practice | CO | |
| Nurse Practitioner | TX | |
| Nurse Practitioner | WA | |
| Certified Registered Nurse Anesthetist (Crna) | MT | |
| Certified Nurse Midwife (Cnm) | WA | |
| Nurse Practitioner | CA | |
| - | MT |
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