John J. Cierzan, MD
Internal Medicine Physician · Rochester, MN
John J. Cierzan, MD is an internal medicine physician with a practice address in Rochester, Minnesota, and NPI 1609813997, issued on Jun 2, 2006. Check the license (Minnesota 036503, as entered in NPPES) on the Minnesota Board of Medical Practice; the Medicare figures below come from public CMS files.
- Name
- John J. Cierzan
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 036503 MN
Self-reported in NPPES; status is on the state search - Practice location
- 210 9TH St SE, Rochester, MN 55904
- Phone
- (507) 288-3443
- Enumerated
- Jun 2, 2006
- Record last updated
- Jan 31, 2017 (not updated in 9 years: call before relying on the address or phone)
- Medicaid ID
- 003025200 MN
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 2,632 in Minnesota → Look up another NPI →
Also registered at 210 9TH St SE
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify John J. Cierzan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMinnesota Board of Medical Practice
Search for license 036503Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
99% fewer Medicare Part D claims than the average internal medicine physician in 2024
38 Medicare Part D claims for 17 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
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.
John J. Cierzan among 2,632 internal medicine physician records in Minnesota
John J. Cierzan, MD 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 2006, is newer than 8% of them.
- NPI issued2006 · 8% of these records are older, 58% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileNo · 65% of these records are
- Record last updated2017 · 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
- Sadik Ali, M.D.Rochester, MN 559041811377229
- Jay Anderson, D.O.Rochester, MN 559041902246465
- Martha BowmanRochester, MN 559041740234525
- Craig Chambers, MDRochester, MN 559041316999089
- Anitsira Collado Polanco, M.D.Rochester, MN 559041578977658
- Paulo Guimaraes, M.D.Rochester, MN 559041275595803
- Sneha Kaggal Laxman Rao, MDRochester, MN 559041427282300
- Maral Kenderian, MDRochester, MN 559041255597696
Common questions
What is John J. Cierzan, MD's NPI number?
John J. Cierzan, MD's National Provider Identifier (NPI) is 1609813997, issued on Jun 2, 2006. An NPI identifies a provider in billing; it is not a license.
Where is John J. Cierzan, MD located?
The NPPES record lists a practice address at 210 9TH St SE, Rochester, MN, 55904. Phone: (507) 288-3443. Providers update this record themselves, so call before visiting.
How can I verify John J. Cierzan, MD's license?
NPPES lists Minnesota license number 036503, 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 John J. Cierzan, MD prescribe under Medicare Part D?
In 2024, John J. Cierzan, MD had 38 Medicare Part D claims for 17 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.