Dennis W. Regan, MD
Hospitalist Physician · Rochester, MN
Dennis W. Regan, MD is a hospitalist physician with a practice address in Rochester, Minnesota, and NPI 1568510907, issued on Jan 8, 2007. Check the license (Minnesota 59227, as entered in NPPES) on the Minnesota Board of Medical Practice; the Medicare figures below come from public CMS files.
- Name
- Dennis W. Regan
- Credential
- MD
- Primary taxonomy
- Hospitalist Physician 208M00000X
- License numbers
- 59227 MN
108111 MN
6978 MT
MD157557 OR
Self-reported in NPPES; status is on the state search - Practice location
- 200 1St St SW, Rochester, MN 55905
- Phone
- (507) 284-2511
- Enumerated
- Jan 8, 2007
- Record last updated
- Feb 2, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20150430001772); accepts Medicare assignment
- Medical or professional school
- University Of North Carolina At Chapel Hill School Of Medicine, 1987
- 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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- Uzoamaka Abajue, PHARMDPharmacist1982335295
- Francisco Abarca Rendon, MDIndependent Medical Examiner Physician1790096246
Verify Dennis W. Regan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMinnesota Board of Medical Practice
Search for license 59227Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
83% fewer Medicare Part D claims than the average hospitalist physician in 2024
89 Medicare Part D claims for 24 beneficiaries, against an average of 521 among the 21,613 providers of this specialty who prescribed in Part D. Brand-name drugs were 17% of claims.
Most prescribed
- Atorvastatin Calcium13 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).
Dennis W. Regan among 401 hospitalist physician records in Minnesota
Dennis W. Regan, 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 2007, is newer than 22% of them.
- NPI issued2007 · 22% of these records are older, 72% newer
- In a Medicare fileYes · 92% of these records are
- In the CMS Doctors and Clinicians fileYes · 88% of these records are
- Graduated1987 · median 2011 among the 354 with a school on file
- Record last updated2021 · 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 Dennis W. Regan, MD's NPI number?
Dennis W. Regan, MD's National Provider Identifier (NPI) is 1568510907, issued on Jan 8, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Dennis W. Regan, 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 Dennis W. Regan, MD's license?
NPPES lists Minnesota license number 59227, 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 Dennis W. Regan, MD prescribe under Medicare Part D?
In 2024, Dennis W. Regan, MD had 89 Medicare Part D claims for 24 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.