Registry data as of Aug 27, 2026

Sierra Maaske, RN

Oncology Registered Nurse · Chicago, IL

Sierra Maaske, RN is an oncology registered nurse with a practice address in Chicago, Illinois, and NPI 1316774714, issued on Sep 18, 2024. Check the license (Illinois 041.516829, as entered in NPPES) with the Illinois board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.

Record from CMS NPPES, loaded Aug 27, 2026 · method · Verify with CMS →

NPPES recordas of Aug 27, 2026
1316774714
Name
Sierra Maaske
Credential
RN
Primary taxonomy
Oncology Registered Nurse 163WX0200X
License number
041.516829 IL
Self-reported in NPPES; status is on the state search
Practice location
1620 W Harrison St, Chicago, IL 60612
Phone
(312) 947-1400
Enumerated
Sep 18, 2024
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 1620 W Harrison St

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Kylie Abernathy, OTOccupational Therapist1518489269
  2. Iris Abrahantes Morales, MDObstetrics & Gynecology Physician1164155164
  3. Sunaina Addanki, MDStudent in an Organized Health Care Education/Training Program1396593349
  4. Favour AdebayoPhysical Therapist1245072081
  5. Adebanke Adeyemi, MDInternal Medicine Physician1922933936
  6. Emily Adochio-Clancy, MDInfectious Disease Physician1629606975

Verify Sierra Maaske in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Illinois board licenses this profession
    Search for license 041.516829
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
Find the Illinois license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

Oncology Registered Nurse providers in Illinois

There are 39 oncology registered nurse records in Illinois. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

Other oncology registered nurse records in Illinois

  1. Juli AistarsArlington Heights, IL1861883209
  2. Abby Blasco, AGPCNP-BC, RNChicago, IL1013650118
  3. Olivia Boone, RNChicago, IL1366093056
  4. Kelly Broederdorf, REGISTERED NURSEWoodstock, IL1952023459
  5. Kathleen Cunningham, RNChicago, IL1578346144
  6. Amanda Dawson, RNMarion, IL1851090732
  7. Laura Dixon, RNChicago, IL1861273153
  8. Jessica HartElmhurst, IL1780551739
  9. Tara Henrikson, APNChicago, IL1225386345
  10. Catherine Hertz, BSN, MSN, CNS, APOCNHines, IL1528341765

Common questions

What is Sierra Maaske, RN's NPI number?

Sierra Maaske, RN's National Provider Identifier (NPI) is 1316774714, issued on Sep 18, 2024. An NPI identifies a provider in billing; it is not a license.

Where is Sierra Maaske, RN located?

The NPPES record lists a practice address at 1620 W Harrison St, Chicago, IL, 60612. Phone: (312) 947-1400. Providers update this record themselves, so call before visiting.

How can I verify Sierra Maaske, RN's license?

NPPES lists Illinois license number 041.516829, as entered by the provider. Search the Illinois board that licenses this profession; the NPPES record confirms identity only.

Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. 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.