Sydney O'Malley, M.D.
Allergy & Immunology Physician · Rochester, MN
Sydney O'Malley, M.D. is an allergy & immunology physician with a practice address in Rochester, Minnesota, and NPI 1851754626, issued on Mar 30, 2016. Check the license (Minnesota 79453, as entered in NPPES) on the Minnesota Board of Medical Practice; the Medicare figures below come from public CMS files.
- Name
- Sydney O'Malley
- Credential
- M.D.
- Primary taxonomy
- Allergy & Immunology Physician 207K00000X
- License numbers
- 79453 MN
0101263141 VA
Self-reported in NPPES; status is on the state search - Practice location
- 200 1St St SW, Rochester, MN 55905
- Phone
- (507) 284-2511
- Enumerated
- Mar 30, 2016
- Record last updated
- Nov 30, 2025
- Medicare enrollment
- Enrolled (PECOS I20250520000415); accepts Medicare assignment
- Medical or professional school
- Wright State University Boonshoft School Of Medicine, 2016
- Entity
- Type 1 · individual
Also registered at 200 1St St SW
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Timothy Aadland, M.D.Diagnostic Radiology Physician1780662783
- Christopher Aakre, MDInternal Medicine Physician1508151663
- Kathryn Aaro, P.T.Physical Therapist1619360666
- Danielle Aase, MDReproductive Endocrinology Physician1316524135
- Uzoamaka Abajue, PHARMDPharmacist1982335295
- Francisco Abarca Rendon, MDIndependent Medical Examiner Physician1790096246
Verify Sydney O'Malley in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMinnesota Board of Medical Practice
Search for license 79453Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
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).
Allergy & Immunology Physician providers in Minnesota
There are 85 allergy & immunology physician records in Minnesota.
Other allergy & immunology physician records in Minnesota
- Eyas Abla, M.D,Saint Cloud, MN1134407430
- Utkucan Acar, MD, MMSCEast Grand Forks, MN1609397421
- Niladri Aichbhaumik, MDSaint Paul, MN1437379369
- Barry Alper, M.D.Robbinsdale, MN1366558843
- Mollie Alpern, M.D.Saint Paul, MN1467794644
- Roula Altisheh, M.DSaint Paul, MN1609132125
- Hiba Bashir, M.D.Fridley, MN1497875074
- Lowell Becker, MDCambridge, MN1144281965
- Paul Blum, MDEdina, MN1083729537
- Brian Brennan, M.D.Morris, MN1376536920
Common questions
What is Sydney O'Malley, M.D.'s NPI number?
Sydney O'Malley, M.D.'s National Provider Identifier (NPI) is 1851754626, issued on Mar 30, 2016. An NPI identifies a provider in billing; it is not a license.
Where is Sydney O'Malley, 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 Sydney O'Malley, M.D.'s license?
NPPES lists Minnesota license number 79453, 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.
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.