James Robert Baer, MD
Radiation Oncology Physician · Eau Claire, WI
James Robert Baer, MD is a radiation oncology physician with a practice address in Eau Claire, Wisconsin, and NPI 1275531493, issued on Jul 12, 2005. Check the license (Wisconsin 84335, as entered in NPPES) on the Wisconsin Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- James Robert Baer
- Credential
- MD
- Primary taxonomy
- Radiation Oncology Physician 2085R0001X
- License numbers
- 84335 WI
275657 NY
Self-reported in NPPES; status is on the state search - Practice location
- 1400 Bellinger Street, Eau Claire, WI 54703
- Phone
- (715) 838-5222
- Enumerated
- Jul 12, 2005
- Record last updated
- Sep 16, 2025
- Medicare enrollment
- Enrolled (PECOS I20240904000026); accepts Medicare assignment
- Medical or professional school
- Temple University School Of Medicine, 1996
- Entity
- Type 1 · individual
8 nearest radiation oncology physician records → All 153 in Wisconsin → Look up another NPI →
Also registered at 1400 Bellinger Street
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Now Bahar Alam, MDRadiation Oncology Physician1508363532
- Elizabeth Baker, MDObstetrics & Gynecology Physician1215425756
- Andrew Barty, DODiagnostic Neuroimaging (Radiology) Physician1619505807
- Michaela Callaghan, CNMAdvanced Practice Midwife1700623071
- Elena Ciofoaia, M.D.Rheumatology Physician1477074524
- Heather Cork, CNPNurse Practitioner1225649890
Verify James Robert Baer in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWisconsin Medical Examining Board
Search for license 84335Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
66% fewer Medicare Part D claims than the average radiation oncology physician in 2024
45 Medicare Part D claims for 24 beneficiaries, against an average of 134 among the 4,851 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.
Most prescribed
- Alprazolam12 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.
Industry payments in 2024: $15.02
1 payment: food and beverage; the largest payer was Tactile Systems Technology Inc. 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.
Bills Medicare through 3 group practices
- Lakeview Medical Center Inc OF Rice LakeRice Lake, WI
- Mayo ClinicEau Claire, WI
- Mchs Hospitals IncMarshfield, WI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
James Robert Baer among 153 radiation oncology physician records in Wisconsin
James Robert Baer, MD 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 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 92% newer
- In a Medicare fileYes · 88% of these records are
- In the CMS Doctors and Clinicians fileYes · 78% of these records are
- Graduated1996 · median 2008 among the 119 with a school on file
- Record last updated2025 · 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.
All 153 in Wisconsin → Every provider in Eau Claire → Radiation Oncology Physician nationwide →
The 8 radiation oncology physician records with the nearest ZIP codes
- Now Bahar Alam, MDEau Claire, WI 547031508363532
- Zachary Wilson, M.D.Eau Claire, WI 547031265669980
- Michael Fallon, MDEau Claire, WI 547011184623381
- Kenneth Klein, MDEau Claire, WI 547011891736963
- Mark Steinmetz, M.D.Chippewa Falls, WI 547291598705261
- Patrick Conway, MDLa Crosse, WI 546011841295102
- Marcus Crosby, M.D.La Crosse, WI 546011689803579
- Collin Driscoll, M.D.La Crosse, WI 546011538254925
Common questions
What is James Robert Baer, MD's NPI number?
James Robert Baer, MD's National Provider Identifier (NPI) is 1275531493, issued on Jul 12, 2005. An NPI identifies a provider in billing; it is not a license.
Where is James Robert Baer, MD located?
The NPPES record lists a practice address at 1400 Bellinger Street, Eau Claire, WI, 54703. Phone: (715) 838-5222. Providers update this record themselves, so call before visiting.
How can I verify James Robert Baer, MD's license?
NPPES lists Wisconsin license number 84335, 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 James Robert Baer, MD prescribe under Medicare Part D?
In 2024, James Robert Baer, MD had 45 Medicare Part D claims for 24 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.