Sonja M. Bjerk, MD
Pulmonary Disease Physician · Duluth, MN
Sonja M. Bjerk, MD is a pulmonary disease physician with a practice address in Duluth, Minnesota, and NPI 1316012297, issued on Nov 23, 2006. Check the license (Minnesota 51666, as entered in NPPES) on the Minnesota Board of Medical Practice; the Medicare figures below come from public CMS files.
- Name
- Sonja M. Bjerk
- Credential
- MD
- Primary taxonomy
- Pulmonary Disease Physician 207RP1001X
- License numbers
- 51666 MN
50108 WI
50108-20 WI
Self-reported in NPPES; status is on the state search - Practice location
- 400 E 3RD St, Duluth, MN 55805
- Phone
- (218) 786-3993
- Enumerated
- Nov 23, 2006
- Record last updated
- Dec 3, 2018 (not updated in 8 years: call before relying on the address or phone)
- Medicaid IDs
- 34993200 WI
1316012297 MN - Medicare enrollment
- Enrolled (PECOS I20110405000104); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest pulmonary disease physician records → All 311 in Minnesota → Look up another NPI →
Also registered at 400 E 3RD St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Peter Aas, MDHospitalist Physician1063455848
- Amina Adil, MDCardiovascular Disease Physician1336482314
- Rahul Aggarwal, M.D.Pediatric Critical Care Medicine Physician1336198332
- Olubisi Akinseloyin, MDHospitalist Physician1619309010
- Glenn Albin, M.DCardiovascular Disease Physician1902851116
- David AlexanderDiagnostic Radiology Physician1932135936
Verify Sonja M. Bjerk in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMinnesota Board of Medical Practice
Search for license 51666Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
3% fewer Medicare Part D claims than the average pulmonary disease physician in 2024
1,386 Medicare Part D claims for 159 beneficiaries, against an average of 1,425 among the 11,596 providers of this specialty who prescribed in Part D. Brand-name drugs were 42% of claims.
Most prescribed
- Montelukast Sodium247 claims
- Prednisone152 claims
- Trelegy Ellipta146 claims
- Albuterol Sulfate Hfa79 claims
- Ventolin Hfa79 claims
- Azithromycin73 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Bills Medicare through one group practice
- The Duluth Clinic LtdHermantown, MN
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Sonja M. Bjerk among 311 pulmonary disease physician records in Minnesota
Sonja M. Bjerk, MD is one of 311 pulmonary disease physician records with a practice address in Minnesota. 85% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 7% of them.
- NPI issued2006 · 7% of these records are older, 54% newer
- In a Medicare fileYes · 85% of these records are
- In the CMS Doctors and Clinicians fileYes · 79% of these records are
- Graduated2005 · median 2008 among the 244 with a school on file
- Record last updated2018 · 52% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RP1001X and a Minnesota practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Pulmonary Disease Physician providers in Minnesota
There are 311 pulmonary disease physician records in Minnesota.
All 311 in Minnesota → Every provider in Duluth → Pulmonary Disease Physician nationwide →
The 8 pulmonary disease physician records with the nearest ZIP codes
- Brian Aebly, D.O.Duluth, MN 558051578705125
- Vance Bachelder, MDDuluth, MN 558051710936125
- Terrence ClarkDuluth, MN 558051760410112
- Wayne Elmer, MDDuluth, MN 558051740230903
- Trina Hollatz, M.D.Duluth, MN 558051083804256
- Jeray Johnson, MDDuluth, MN 558051629181706
- Gary KindtDuluth, MN 558051861426538
- Romy Lawrence, M.D.Duluth, MN 558051093246563
Common questions
What is Sonja M. Bjerk, MD's NPI number?
Sonja M. Bjerk, MD's National Provider Identifier (NPI) is 1316012297, issued on Nov 23, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Sonja M. Bjerk, MD located?
The NPPES record lists a practice address at 400 E 3RD St, Duluth, MN, 55805. Phone: (218) 786-3993. Providers update this record themselves, so call before visiting.
How can I verify Sonja M. Bjerk, MD's license?
NPPES lists Minnesota license number 51666, as entered by the provider. Search the Minnesota Board of Medical Practice at https://mn.gov/boards/medical-practice/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Sonja M. Bjerk, MD prescribe under Medicare Part D?
In 2024, Sonja M. Bjerk, MD had 1,386 Medicare Part D claims for 159 beneficiaries; the average among pulmonary disease physician prescribers was 1,425. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.