Caroline Oska, M.D.
Radiation Oncology Physician · Grand Rapids, MI
Caroline Oska, M.D. is a radiation oncology physician with a practice address in Grand Rapids, Michigan, and NPI 1952006736, issued on Apr 3, 2023. Check the license (Michigan 4351051036, as entered in NPPES) on the Michigan Board of Medicine (LARA); the Medicare figures below come from public CMS files.
- Name
- Caroline Oska
- Credential
- M.D.
- Primary taxonomy
- Radiation Oncology Physician 2085R0001X
- License number
- 4351051036 MI
Self-reported in NPPES; status is on the state search - Practice location
- 100 Michigan St NE Ste A601, Grand Rapids, MI 49503
- Phone
- (616) 391-3570
- Enumerated
- Apr 3, 2023
- Record last updated
- Jun 23, 2023
- Entity
- Type 1 · individual
8 nearest radiation oncology physician records → All 239 in Michigan → Look up another NPI →
Also registered at 100 Michigan St NE Ste A601
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Samah Abdalla, MBBSDiagnostic Radiology Physician1063216380
- Adam AlamahPhysical Medicine & Rehabilitation Physician1609718865
- Kevin Allen, DOSurgery Physician1720929870
- Jason Aubrey, MDSurgery Physician1750951737
- Stephanie BarnaDiagnostic Radiology Physician1598608135
- Norman Beauchamp, MDStudent in an Organized Health Care Education/Training Program1114614567
Verify Caroline Oska in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMichigan Board of Medicine (LARA)
Search for license 4351051036Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
77% fewer Medicare Part D claims than the average radiation oncology physician in 2024
31 Medicare Part D claims for 18 beneficiaries, against an average of 134 among the 4,851 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.
Industry payments in 2024: $85.60
1 payment: food and beverage; the largest payer was E.R. Squibb & Sons, L.L.C. The 3,275 providers of this specialty with any payment received $1,897.85 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Caroline Oska among 239 radiation oncology physician records in Michigan
Caroline Oska, M.D. is one of 239 radiation oncology physician records with a practice address in Michigan. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2023, is newer than 94% of them.
- NPI issued2023 · 94% of these records are older, 5% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileNo · 72% of these records are
- Record last updated2023 · 54% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2085R0001X and a Michigan practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Radiation Oncology Physician providers in Michigan
There are 239 radiation oncology physician records in Michigan.
All 239 in Michigan → Every provider in Grand Rapids → Radiation Oncology Physician nationwide →
The 8 radiation oncology physician records with the nearest ZIP codes
- Joshua Corteville, MDGrand Rapids, MI 495031093203457
- John Edlund, MDGrand Rapids, MI 495031841215878
- Celine Eid, MDGrand Rapids, MI 495031447047774
- Patrick Fabrizio, MDGrand Rapids, MI 495031356350938
- Anudeeta Gautam, MDGrand Rapids, MI 495031699562017
- Robert Kirkland, MDGrand Rapids, MI 495031578940029
- Michael Mahacek, MDGrand Rapids, MI 495031922021484
- Brandon Mancini, M.D.Grand Rapids, MI 495031366731838
Common questions
What is Caroline Oska, M.D.'s NPI number?
Caroline Oska, M.D.'s National Provider Identifier (NPI) is 1952006736, issued on Apr 3, 2023. An NPI identifies a provider in billing; it is not a license.
Where is Caroline Oska, M.D. located?
The NPPES record lists a practice address at 100 Michigan St NE Ste A601, Grand Rapids, MI, 49503. Phone: (616) 391-3570. Providers update this record themselves, so call before visiting.
How can I verify Caroline Oska, M.D.'s license?
NPPES lists Michigan license number 4351051036, as entered by the provider. Search the Michigan Board of Medicine (LARA) at https://aca-prod.accela.com/MILARA/GeneralProperty/PropertyLookUp.aspx?isLicensee=Y&TabName=APO. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Caroline Oska, M.D. prescribe under Medicare Part D?
In 2024, Caroline Oska, M.D. had 31 Medicare Part D claims for 18 beneficiaries; the average among radiation oncology physician prescribers was 134. 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.