Sonja Bjerk, MD
NPI 1316012297 · Pulmonary Disease Physician · Duluth, MN
Enrolled with Medicare as Practitioner - Pulmonary Disease · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Provider details
- NPI number
- 1316012297
- Entity type
- Individual
- Primary specialty
- Pulmonary Disease PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 51666 (MN)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
- Pulmonary Disease Physician207RP1001X
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
19 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
363 Medicare services, 2024 (ranked within specialty)
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 methodology.
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) |
|---|---|---|
| Critical Care, First 30-74 Minutes99291 | 76 | $197 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 52 | $136 |
| Test to Examine How Well the Lungs Exchange Gases94729 | 45 | $8 |
| Critical Care, Each Additional 30 Minutes99292 | 45 | $99 |
| Test to Determine Lung Volumes Using Sensors94726 | 40 | $11 |
| Test to Measure Expiratory Airflow and Volume Changes Before and After Medication Administration94060 | 38 | $10 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 30 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Montelukast Sodium | 247 | 59 |
| Prednisone | 152 | 38 |
| Fluticasone/Umeclidin/Vilanterbrand: Trelegy Ellipta | 146 | 29 |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 79 | 39 |
| Albuterol Sulfatebrand: Ventolin Hfa | 79 | 33 |
| Azithromycin | 73 | 31 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-11-23
- Last updated
- 2018-12-03
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.