David Brennan, M.D.
Internal Medicine Physician · Rochester, MN
David Brennan, M.D. is an internal medicine physician with a practice address in Rochester, Minnesota, and NPI 1982083184, issued on May 21, 2015. Check the license (Minnesota 61001, as entered in NPPES) on the Minnesota Board of Medical Practice; the Medicare figures below come from public CMS files.
- Name
- David Brennan
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 61001 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
- May 21, 2015
- Record last updated
- Aug 12, 2020 (not updated in 6 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20160923000421); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 2,632 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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Verify David Brennan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMinnesota Board of Medical Practice
Search for license 61001Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
16% more Medicare Part D claims than the average internal medicine physician in 2024
3,685 Medicare Part D claims for 384 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims. 82 claims were for opioids.
Most prescribed
- Atorvastatin Calcium291 claims
- Losartan Potassium127 claims
- Rosuvastatin Calcium110 claims
- Amlodipine Besylate102 claims
- Pantoprazole Sodium95 claims
- Levothyroxine Sodium90 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).
David Brennan among 2,632 internal medicine physician records in Minnesota
David Brennan, M.D. is one of 2,632 internal medicine physician records with a practice address in Minnesota. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2015, is newer than 69% of them.
- NPI issued2015 · 69% of these records are older, 29% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 65% of these records are
- Graduated2015 · median 2008 among the 1,700 with a school on file
- Record last updated2020 · 57% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Minnesota practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
545 internal medicine physician records list a practice address in Rochester
They are 545 of the 12,854 NPPES records with a practice address in Rochester, and 2,632 internal medicine physician records in Minnesota.
All 2,632 in Minnesota → Every provider in Rochester → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Shari Bornstein, MDRochester, MN 559051679556005
- David Cook, M.D.Rochester, MN 559051891772554
- John Davidson, M.D.Rochester, MN 559051609852698
- Brian Dougan, M.D.Rochester, MN 559051942204383
- Eduardo Duenas-Barajas, M.D.Rochester, MN 559051235116914
- Murali Duggirala, M.D.Rochester, MN 559051740267418
- Amit Ghosh, M.D.Rochester, MN 559051093791253
- Donald Hensrud, M.D.Rochester, MN 559051467438473
Common questions
What is David Brennan, M.D.'s NPI number?
David Brennan, M.D.'s National Provider Identifier (NPI) is 1982083184, issued on May 21, 2015. An NPI identifies a provider in billing; it is not a license.
Where is David Brennan, M.D. 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 David Brennan, M.D.'s license?
NPPES lists Minnesota license number 61001, 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 David Brennan, M.D. prescribe under Medicare Part D?
In 2024, David Brennan, M.D. had 3,685 Medicare Part D claims for 384 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.