MARK WIITA (APRN, CNP) – Nurse Practitioner, NPI 1457739179
Nurse Practitioner
Main info
Doctor Profile
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Profile Insights
NPPES metrics only — not quality of care.
5,720 NURSE PRACTITIONER in MN
Provider Addresses for MARK WIITA (APRN, CNP)
4212 Grand Ave
Essentia Health West Duluth Clinic
Duluth, MN 55807
Phone: (218) 786-3500
Type: Location
1010 4th St
Two Harbors, MN 556161200
Phone: (218) 834-7700
Fax: (218) 834-7727
Type: Location
1001 E SUPERIOR ST STE L401
DULUTH, MN 558022207
Phone: (218) 249-7960
Fax: (218) 249-7997
Type: Mailing
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 6 Open Payments records for all available years, with a total value of $109.
Total Amount is formed as General ($109) + Research ($0) + Ownership ($0) = $109.
Last reported payment date: 2024-11-19 • Largest payer in this snapshot: Lilly USA, LLC ($31).
Total Amount
$109
General + Research + Ownership
Payments
6
Total payment records
General Amount
$109
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-11-19
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Lilly USA, LLC | $31 |
| Medtronic, Inc. | $31 |
| SANOFI-AVENTIS U.S. LLC | $17 |
| Xeris Pharmaceuticals, Inc. | $16 |
| Novo Nordisk Inc | $14 |
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: 2018-05-30
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking 2 Medicare enrollment records; no due dates published yet.
Enrollment records
2
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 |
|---|---|---|---|---|
| I20150813011152 | I | Nurse Practitioner | MN | TBD |
| I20180530001248 | I | Nurse Practitioner | WI | 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 |
|---|---|---|---|---|
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 89 | 60 | $0 |
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 62 | 54 | $0 |
| 99215 | Established patient office or other outpatient visit, 40-54 minutes | 62 | 54 | $0 |
| 95251 | Continuous monitoring of blood sugar level in tissue fluid using sensor under skin with interpretation and report | 55 | 28 | $0 |
| 99443 | Telephone medical discussion with physician, 21-30 minutes | 21 | 18 | $0 |
Insurance plans in this area (ZIP 55807)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Certified Registered Nurse Anesthetist (Crna) | MN | |
| - | MN | |
| Vascular Surgery | IL | |
| Physician Assistant | MN | |
| Emergency Medicine | MN | |
| - | MN | |
| Emergency Medicine | MN | |
| - | MN | |
| Physician Assistant | MN | |
| Hematology/Oncology, Internal Medicine | MN |
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