Gregory N. Tjossem, M.D.
Family Medicine Physician · Spring Grove, MN
Gregory N. Tjossem, M.D. is a family medicine physician with a practice address in Spring Grove, Minnesota, and NPI 1215931696, issued on Jun 13, 2005. Check the license (Minnesota 40179, as entered in NPPES) on the Minnesota Board of Medical Practice; the Medicare figures below come from public CMS files.
- Name
- Gregory N. Tjossem
- Credential
- M.D.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License numbers
- 40179 MN
DR.0053297 CO
MD156481 OR
Self-reported in NPPES; status is on the state search - Practice location
- 123 5TH Ave SE, Spring Grove, MN 55974
- Phone
- (608) 782-7300
- Enumerated
- Jun 13, 2005
- Record last updated
- Nov 9, 2020 (not updated in 6 years: call before relying on the address or phone)
- Medicaid IDs
- 82389349 CO
500641868 OR - Medicare enrollment
- Enrolled (PECOS I20081021000056); accepts Medicare assignment
- Medical or professional school
- University Of Iowa, Rj & L Carver College Of Medicine, 1988
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 3,985 in Minnesota → Look up another NPI →
Also registered at 123 5TH Ave SE
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Robert Breitenbach, MDFamily Medicine Physician1184705543
- Melissa Fuhrmann, APNPAdult Health Nurse Practitioner1851843155
- Molly Thomas, APRN, CNPFamily Nurse Practitioner1336900687
Verify Gregory N. Tjossem in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMinnesota Board of Medical Practice
Search for license 40179Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
29% fewer Medicare Part D claims than the average family medicine physician in 2024
2,520 Medicare Part D claims for 226 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. 23 claims were for opioids.
Most prescribed
- Atorvastatin Calcium170 claims
- Amlodipine Besylate105 claims
- Omeprazole91 claims
- Furosemide89 claims
- Tamsulosin Hcl89 claims
- Gabapentin86 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
- Gundersen Clinic LtdSpring Grove, MN
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Gregory N. Tjossem among 3,985 family medicine physician records in Minnesota
Gregory N. Tjossem, M.D. is one of 3,985 family medicine physician records with a practice address in Minnesota. 74% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 88% newer
- In a Medicare fileYes · 74% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated1988 · median 2006 among the 2,483 with a school on file
- Record last updated2020 · 63% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Minnesota practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Family Medicine Physician providers in Minnesota
There are 3,985 family medicine physician records in Minnesota.
All 3,985 in Minnesota → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Robert Breitenbach, MDSpring Grove, MN 559741184705543
- Cory Boyce, MDSpring Valley, MN 559751437106242
- Charles SlaterSpring Valley, MN 559751679526495
- Barbara Vize, M.D.Spring Valley, MN 559751750461901
- Victoria Hagstrom, MDSt Charles, MN 559721316990971
- Lindy Hankel, M.D.St Charles, MN 559721801847660
- Lynette Lamp, M.D.Saint Charles, MN 559721245281039
- Craig ThauwaldStewartville, MN 559761700829439
Common questions
What is Gregory N. Tjossem, M.D.'s NPI number?
Gregory N. Tjossem, M.D.'s National Provider Identifier (NPI) is 1215931696, issued on Jun 13, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Gregory N. Tjossem, M.D. located?
The NPPES record lists a practice address at 123 5TH Ave SE, Spring Grove, MN, 55974. Phone: (608) 782-7300. Providers update this record themselves, so call before visiting.
How can I verify Gregory N. Tjossem, M.D.'s license?
NPPES lists Minnesota license number 40179, 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 Gregory N. Tjossem, M.D. prescribe under Medicare Part D?
In 2024, Gregory N. Tjossem, M.D. had 2,520 Medicare Part D claims for 226 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.