Amber Retzlaff, M.D.
Radiation Oncology Physician · Minneapolis, MN
Amber Retzlaff, M.D. is a radiation oncology physician with a practice address in Minneapolis, Minnesota, and NPI 1679935860, issued on Mar 25, 2016. Check the license (Minnesota 71718, as entered in NPPES) on the Minnesota Board of Medical Practice; the Medicare figures below come from public CMS files.
- Name
- Amber Retzlaff
- Credential
- M.D.
- Primary taxonomy
- Radiation Oncology Physician 2085R0001X
- License number
- 71718 MN
Self-reported in NPPES; status is on the state search - Practice location
- 800 E 28TH St Ste 401, Minneapolis, MN 55407
- Phone
- (612) 863-0200
- Enumerated
- Mar 25, 2016
- Entity
- Type 1 · individual
Also registered at 800 E 28TH St Ste 401
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Eric Anderson, M.D.Surgery Physician1962729327
- Annie Barlow, PA-CPhysician Assistant1346518370
- Allison Burgstahler, PAPhysician Assistant1144787680
- Clara DahlPhysician Assistant1184338527
- Evidio Domingo Musibay, MDInternal Medicine Physician1831321785
- Courtney Dorle, PA-CPhysician Assistant1073084463
Verify Amber Retzlaff in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMinnesota Board of Medical Practice
Search for license 71718Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
48% fewer Medicare Part D claims than the average radiation oncology physician in 2024
70 Medicare Part D claims for 28 beneficiaries, against an average of 135 among the 4,225 providers of this specialty who prescribed in Part D.
Most prescribed
- Dexamethasone14 claims
- Omeprazole12 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.
One hospital or facility affiliation
- Allina Health SystemMinneapolis, MN
Source: CMS Doctors and Clinicians affiliations; Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
Radiation Oncology Physician providers in Minnesota
There are 139 radiation oncology physician records in Minnesota.
Other radiation oncology physician records in Minnesota
- Nelson Adamson, MDShakopee, MN1720155336
- Nils Arvold, M.D.Duluth, MN1962607499
- Khaled Aziz, MD, PHDRochester, MN1881213007
- Justin Barnes, MD, MSRochester, MN1356968069
- Margaret Barnes, M.D.Fergus Falls, MN1699726349
- Ellen Bellairs, M.D.Maplewood, MN1952378044
- Alexandra Bennett, MDRochester, MN1174264832
- Jenna BorkenhagenFridley, MN1114345279
- Charilaos Harry Brastianos, MD PHDRochester, MN1053076695
- Alexander Bratt, MDRochester, MN1265876445
Common questions
What is Amber Retzlaff, M.D.'s NPI number?
Amber Retzlaff, M.D.'s National Provider Identifier (NPI) is 1679935860, issued on Mar 25, 2016. An NPI identifies a provider in billing; it is not a license.
Where is Amber Retzlaff, M.D. located?
The NPPES record lists a practice address at 800 E 28TH St Ste 401, Minneapolis, MN, 55407. Phone: (612) 863-0200. Providers update this record themselves, so call before visiting.
How can I verify Amber Retzlaff, M.D.'s license?
NPPES lists Minnesota license number 71718, 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 Amber Retzlaff, M.D. prescribe under Medicare Part D?
In 2024, Amber Retzlaff, M.D. had 70 Medicare Part D claims for 28 beneficiaries; the average among radiation oncology physician prescribers was 135. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.