Ruth E. Defoster, MD
Hospitalist Physician · Rochester, MN
Ruth E. Defoster, MD is a hospitalist physician with a practice address in Rochester, Minnesota, and NPI 1558624700, issued on Jun 22, 2012. Check the license (Minnesota 56481, as entered in NPPES) on the Minnesota Board of Medical Practice; the Medicare figures below come from public CMS files.
- Name
- Ruth E. Defoster
- Credential
- MD
- Primary taxonomy
- Hospitalist Physician 208M00000X
- License number
- 56481 MN
Self-reported in NPPES; status is on the state search - Practice location
- 200 1St St SW, Rochester, MN 55905
- Phone
- (507) 284-2511
- Enumerated
- Jun 22, 2012
- Record last updated
- Jan 31, 2023
- Medicare enrollment
- Enrolled (PECOS I20130801000857); accepts Medicare assignment
- Medical or professional school
- Michigan State University College Of Human Medicine, 2012
- Entity
- Type 1 · individual
8 nearest hospitalist physician records → All 401 in Minnesota → Look up another NPI →
Also registered at 200 1St St SW
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Kathryn Aaro, P.T.Physical Therapist1619360666
- Danielle Aase, MDReproductive Endocrinology Physician1316524135
- Uzoamaka Abajue, PHARMDPharmacist1982335295
- Francisco Abarca Rendon, MDIndependent Medical Examiner Physician1790096246
Verify Ruth E. Defoster in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMinnesota Board of Medical Practice
Search for license 56481Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
84% fewer Medicare Part D claims than the average hospitalist physician in 2024
82 Medicare Part D claims for 22 beneficiaries, against an average of 521 among the 21,613 providers of this specialty who prescribed in Part D. Brand-name drugs were 32% of claims.
Most prescribed
- Eliquis22 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
- Mayo ClinicRochester, MN
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Ruth E. Defoster among 401 hospitalist physician records in Minnesota
Ruth E. Defoster, MD is one of 401 hospitalist physician records with a practice address in Minnesota. 92% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2012, is newer than 48% of them.
- NPI issued2012 · 48% of these records are older, 45% newer
- In a Medicare fileYes · 92% of these records are
- In the CMS Doctors and Clinicians fileYes · 88% of these records are
- Graduated2012 · median 2011 among the 354 with a school on file
- Record last updated2023 · 49% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208M00000X and a Minnesota practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Hospitalist Physician providers in Minnesota
There are 401 hospitalist physician records in Minnesota.
All 401 in Minnesota → Every provider in Rochester → Hospitalist Physician nationwide →
The 8 hospitalist physician records with the nearest ZIP codes
- John Bundrick, M.D.Rochester, MN 559051275513632
- Amanda Ebright, M.D.Rochester, MN 559051629056403
- Norman Egger, M.D.Rochester, MN 559051275511040
- Jeanne Huddleston, M.D.Rochester, MN 559051053384529
- Deanne Kashiwagi, M.D.Rochester, MN 559051588665806
- Allan Keller, M.D.Rochester, MN 559051396722542
- Mark Liebow, M.D.Rochester, MN 559051912985763
- Farrell Lloyd, M.D.Rochester, MN 559051285604090
Common questions
What is Ruth E. Defoster, MD's NPI number?
Ruth E. Defoster, MD's National Provider Identifier (NPI) is 1558624700, issued on Jun 22, 2012. An NPI identifies a provider in billing; it is not a license.
Where is Ruth E. Defoster, MD located?
The NPPES record lists a practice address at 200 1St St SW, Rochester, MN, 55905. Phone: (507) 284-2511. Providers update this record themselves, so call before visiting.
How can I verify Ruth E. Defoster, MD's license?
NPPES lists Minnesota license number 56481, 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 Ruth E. Defoster, MD prescribe under Medicare Part D?
In 2024, Ruth E. Defoster, MD had 82 Medicare Part D claims for 22 beneficiaries; the average among hospitalist physician prescribers was 521. 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.