Mary L. Olson, MD
Family Medicine Physician · Windom, MN
Mary L. Olson, MD is a family medicine physician with a practice address in Windom, Minnesota, and NPI 1598738387, issued on Feb 10, 2006. Check the license (Minnesota 27709, as entered in NPPES) on the Minnesota Board of Medical Practice; the Medicare figures below come from public CMS files.
- Name
- Mary L. Olson
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 27709 MN
Self-reported in NPPES; status is on the state search - Practice location
- 820 2ND Avenue North, Windom, MN 56101
- Phone
- (507) 831-1703
- Enumerated
- Feb 10, 2006
- Record last updated
- Apr 1, 2015 (not updated in 11 years: call before relying on the address or phone)
- Fax
- (507) 831-4170
- Medicaid ID
- 170377300 MN
- Medicare enrollment
- Enrolled (PECOS I20100517000609); accepts Medicare assignment
- Medical or professional school
- University Of Minnesota Medical School, 1982
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 3,985 in Minnesota → Look up another NPI →
Also registered at 820 2ND Avenue North
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Bruce Turner, DDSDentist1497861595
Verify Mary L. Olson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMinnesota Board of Medical Practice
Search for license 27709Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
62% more Medicare Part D claims than the average family medicine physician in 2024
5,749 Medicare Part D claims for 244 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 8% of claims. 79 claims were for opioids.
Most prescribed
- Levothyroxine Sodium427 claims
- Lisinopril312 claims
- Simvastatin312 claims
- Metoprolol Succinate275 claims
- Omeprazole201 claims
- Furosemide198 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 2 group practices
- Avera MckennanWindom, MN
- Rural Health Care IncWorthington, MN
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Mary L. Olson among 3,985 family medicine physician records in Minnesota
Mary L. Olson, MD 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 2006, is newer than 12% of them.
- NPI issued2006 · 12% of these records are older, 42% newer
- In a Medicare fileYes · 74% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated1982 · median 2006 among the 2,483 with a school on file
- Record last updated2015 · 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).
9 family medicine physician records list a practice address in Windom
They are 9 of the 75 NPPES records with a practice address in Windom, and 3,985 family medicine physician records in Minnesota.
All 3,985 in Minnesota → Every provider in Windom → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Stanley Bennett, MDWindom, MN 561011124161922
- Stephanie Buhler, M.D.Windom, MN 561011376835447
- Rodney Dynes, MDWindom, MN 561011356314223
- Steven Hartberg, M.D.Windom, MN 561011972501120
- Bruce Larkin, MD, MPHWindom, MN 561011952044430
- Jeffrey Taber, MDWindom, MN 561011598767113
- Brett Van Kley, MDWindom, MN 561011063896298
- Ahmad Yusuf, MDWindom, MN 561011992097992
Common questions
What is Mary L. Olson, MD's NPI number?
Mary L. Olson, MD's National Provider Identifier (NPI) is 1598738387, issued on Feb 10, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Mary L. Olson, MD located?
The NPPES record lists a practice address at 820 2ND Avenue North, Windom, MN, 56101. Phone: (507) 831-1703. Providers update this record themselves, so call before visiting.
How can I verify Mary L. Olson, MD's license?
NPPES lists Minnesota license number 27709, 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 Mary L. Olson, MD prescribe under Medicare Part D?
In 2024, Mary L. Olson, MD had 5,749 Medicare Part D claims for 244 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.