Brian J. Frederick, M.D.
Hospitalist Physician · Eau Claire, WI
Brian J. Frederick, M.D. is a hospitalist physician with a practice address in Eau Claire, Wisconsin, and NPI 1992025605, issued on Jun 3, 2010. Check the license (Wisconsin 61029-20, as entered in NPPES) on the Wisconsin Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Brian J. Frederick
- Credential
- M.D.
- Primary taxonomy
- Hospitalist Physician 208M00000X
- License number
- 61029-20 WI
Self-reported in NPPES; status is on the state search - Practice location
- 1221 Whipple St, Eau Claire, WI 54703
- Phone
- (715) 838-5222
- Enumerated
- Jun 3, 2010
- Record last updated
- Oct 4, 2022
- Medicaid ID
- 1992025605 WI
- Medicare enrollment
- Enrolled (PECOS I20140113000372); accepts Medicare assignment
- Medical or professional school
- University Of Wisconsin School Of Medicine, 2010
- Entity
- Type 1 · individual
8 nearest hospitalist physician records → All 894 in Wisconsin → Look up another NPI →
Also registered at 1221 Whipple St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Charlene Anderson, APNPNurse Practitioner1194057752
- Gwen Anderson, CRNACertified Registered Nurse Anesthetist1316103369
- Hailee Anderson, CRNACertified Registered Nurse Anesthetist1598453425
Verify Brian J. Frederick in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWisconsin Medical Examining Board
Search for license 61029-20Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
49% more Medicare Part D claims than the average hospitalist physician in 2024
774 Medicare Part D claims for 134 beneficiaries, against an average of 521 among the 21,613 providers of this specialty who prescribed in Part D. 19 claims were for opioids.
Most prescribed
- Levothyroxine Sodium34 claims
- Furosemide31 claims
- Atorvastatin Calcium30 claims
- Eliquis30 claims
- Clopidogrel29 claims
- Metoprolol Succinate27 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 one group practice
- Mayo Clinic Health System-Northwest Wisconsin Region IncEau Claire, WI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Brian J. Frederick among 894 hospitalist physician records in Wisconsin
Brian J. Frederick, M.D. is one of 894 hospitalist physician records with a practice address in Wisconsin. 91% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2010, is newer than 34% of them.
- NPI issued2010 · 34% of these records are older, 62% newer
- In a Medicare fileYes · 91% of these records are
- In the CMS Doctors and Clinicians fileYes · 86% of these records are
- Graduated2010 · median 2011 among the 768 with a school on file
- Record last updated2022 · 29% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208M00000X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Hospitalist Physician providers in Wisconsin
There are 894 hospitalist physician records in Wisconsin.
All 894 in Wisconsin → Every provider in Eau Claire → Hospitalist Physician nationwide →
The 8 hospitalist physician records with the nearest ZIP codes
- Emeka Amadi, M.D.Eau Claire, WI 547031184065179
- Hemant Hegde, M.D.Eau Claire, WI 547031992737381
- Okechukwu Kanu, MDEau Claire, WI 547031871817593
- David Ladin, M.D.Eau Claire, WI 547031992007447
- Cristian Madrid Madrid, M.D.Eau Claire, WI 547031578979001
- Vanajakshi Mogulla, M.D.Eau Claire, WI 547031366721938
- Charles Nordstrom, M.D.Eau Claire, WI 547031447223011
- Sandeep Pangarkar, D.O.Eau Claire, WI 547031033106745
Common questions
What is Brian J. Frederick, M.D.'s NPI number?
Brian J. Frederick, M.D.'s National Provider Identifier (NPI) is 1992025605, issued on Jun 3, 2010. An NPI identifies a provider in billing; it is not a license.
Where is Brian J. Frederick, M.D. located?
The NPPES record lists a practice address at 1221 Whipple St, Eau Claire, WI, 54703. Phone: (715) 838-5222. Providers update this record themselves, so call before visiting.
How can I verify Brian J. Frederick, M.D.'s license?
NPPES lists Wisconsin license number 61029-20, 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 Brian J. Frederick, M.D. prescribe under Medicare Part D?
In 2024, Brian J. Frederick, M.D. had 774 Medicare Part D claims for 134 beneficiaries; the average among hospitalist physician prescribers was 521. 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.