NPPES file of Aug 9, 2026

Christopher S. Platta, M.D.

Radiation Oncology Physician · Wausau, WI

Christopher S. Platta, M.D. is a radiation oncology physician with a practice address in Wausau, Wisconsin, and NPI 1811127301, issued on Jul 20, 2009. Check the license (Wisconsin 55128-20, as entered in NPPES) on the Wisconsin Medical Examining Board; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1811127301
Name
Christopher S. Platta
Credential
M.D.
Primary taxonomy
Radiation Oncology Physician 2085R0001X
License number
55128-20 WI
Self-reported in NPPES; status is on the state search
Practice location
425 Pine Ridge Blvd, Wausau, WI 54401
Phone
(608) 847-2121
Enumerated
Jul 20, 2009
Record last updated
Jun 24, 2014 (not updated in 12 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20130511000060); accepts Medicare assignment
Medical or professional school
University Of Wisconsin School Of Medicine, 2009
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 425 Pine Ridge Blvd

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

  1. Elliott AdentCertified Registered Nurse Anesthetist1013453497
  2. Aaron Anderson, M.D.Anesthesiology Physician1720024870
  3. Jonathan Bayba, M.D.Anesthesiology Physician1386664068
  4. Andrew Beaumont, M.D., PH.D.Neurological Surgery Physician1871688135
  5. Erika Beining, CRNACertified Registered Nurse Anesthetist1245646033
  6. Zaven Boornazian, M.D.Anesthesiology Physician1558382853

Verify Christopher S. Platta in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWisconsin Medical Examining Board
    Search for license 55128-20
    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
Open the Wisconsin 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.

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5.0 times the Medicare Part D claims of the average radiation oncology physician in 2024

665 Medicare Part D claims for 178 beneficiaries, against an average of 134 among the 4,851 providers of this specialty who prescribed in Part D. Brand-name drugs were 21% of claims. 51 claims were for opioids.

  1. Christopher Platta665
  2. Specialty average134

Most prescribed

  1. Orgovyx118 claims
  2. Tamsulosin Hcl99 claims
  3. Omeprazole48 claims
  4. Oxycodone Hcl36 claims
  5. Gabapentin25 claims
  6. Dexamethasone23 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.

Bills Medicare through 4 group practices

  1. Aspirus Rhinelander And Tomahawk Hospitals And Clinics, Inc.Rhinelander, WI
  2. Aspirus Riverview Hospital And Clinics IncWisconsin Rapids, WI
  3. Aspirus Stevens Point Hospital And Clinics, Inc.Stevens Point, WI
  4. Aspirus Wausau Hospital IncMedford, WI

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Christopher S. Platta among 153 radiation oncology physician records in Wisconsin

Christopher S. Platta, M.D. is one of 153 radiation oncology physician records with a practice address in Wisconsin. 88% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2009, is newer than 57% of them.

  • NPI issued2009 · 57% of these records are older, 38% newer
  • In a Medicare fileYes · 88% of these records are
  • In the CMS Doctors and Clinicians fileYes · 78% of these records are
  • Graduated2009 · median 2008 among the 119 with a school on file
  • Record last updated2014 · 44% 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 Wisconsin 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 Wisconsin

There are 153 radiation oncology physician records in Wisconsin.

The 8 radiation oncology physician records with the nearest ZIP codes

  1. Darryl BartonWausau, WI 544011609822774
  2. Anna Brown, M.D.Wausau, WI 544011972966125
  3. Andrew Huang, M.D.Wausau, WI 544011679957526
  4. Anderson Bauer, M.D.Marshfield, WI 544491043422207
  5. Jason Duelge, MDMarshfield, WI 544491326032509
  6. Leon McNealy, MDMarshfield, WI 544491447294673
  7. Warren Olds, MDMarshfield, WI 544491326146606
  8. Bevan Ly, MDWeston, WI 544761730405143

Common questions

What is Christopher S. Platta, M.D.'s NPI number?

Christopher S. Platta, M.D.'s National Provider Identifier (NPI) is 1811127301, issued on Jul 20, 2009. An NPI identifies a provider in billing; it is not a license.

Where is Christopher S. Platta, M.D. located?

The NPPES record lists a practice address at 425 Pine Ridge Blvd, Wausau, WI, 54401. Phone: (608) 847-2121. Providers update this record themselves, so call before visiting.

How can I verify Christopher S. Platta, M.D.'s license?

NPPES lists Wisconsin license number 55128-20, as entered by the provider. Search the Wisconsin Medical Examining Board at https://dsps.wi.gov/Pages/BoardsCouncils/MEB/Default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Christopher S. Platta, M.D. prescribe under Medicare Part D?

In 2024, Christopher S. Platta, M.D. had 665 Medicare Part D claims for 178 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.