Mark Wiita, APRN, CNP
NPI 1457739179 · Nurse Practitioner · Duluth, MN
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mark Wiita, APRN, CNP is a Nurse Practitioner provider in Duluth, MN (NPI 1457739179).
Provider details
- NPI number
- 1457739179
- Entity type
- Individual
- Primary specialty
- Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- APRN, CNP
- Sex
- Male
- Sole proprietor
- No
- License
- R210059-7 (MN)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
11 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
4 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
376 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 172 | $80 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 70 | $119 |
| Continuous Monitoring of Blood Sugar Level in Tissue Fluid Using Sensor Under Skin With Interpretation and Report95251 | 68 | $29 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 29 | $54 |
| Telephone Medical Discussion With Physician, 11-20 Minutes99442 | 23 | $54 |
| Telephone Medical Discussion With Physician, 21-30 Minutes99443 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 55 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Semaglutidebrand: Ozempic | 260 | 50 |
| Levothyroxine Sodium | 256 | 80 |
| Metformin Hclbrand: Metformin Hcl Er | 194 | 61 |
| Tirzepatidebrand: Mounjaro | 180 | 28 |
| Insulin Glargine,hum.rec.anlogbrand: Lantus Solostar | 166 | 49 |
| Dulaglutidebrand: Trulicity | 82 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$78 across 4 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (3)
- 4212 Grand AveEssentia Health West Duluth ClinicDuluth, MN 55807Phone: (218) 786-3500
- 4212 Grand AveEssentia Health West Duluth ClinicDuluth, MN 55807Phone: (218) 786-3500
- 1010 4th StTwo Harbors, MN 55616-1200Phone: (218) 834-7700Fax: (218) 834-7727
Registry dates
- Enumerated
- 2015-05-14
- Last updated
- 2021-01-19
- Certified
- 2021-01-19
Frequently asked questions
- What is Mark Wiita's NPI number?
- Mark Wiita's National Provider Identifier (NPI) is 1457739179, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Wiita's specialty?
- Mark Wiita is listed in the NPPES registry with a primary specialty of Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Mark Wiita located?
- Mark Wiita's practice location on file with NPPES is 1001 E Superior St Ste L401, Duluth, MN 55802-2207.
- What is Mark Wiita's phone number?
- The practice phone number listed in the NPPES registry for Mark Wiita is (218) 249-7960.
- Does Mark Wiita accept Medicare?
- Mark Wiita is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mark Wiita's NPI active?
- Yes — Mark Wiita's NPI (1457739179) is active in the NPPES registry as of the last update on 2021-01-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.