Mitchell Felder, MD
Neurology Physician · Marshfield, WI
Mitchell Felder, MD is a neurology physician with a practice address in Marshfield, Wisconsin, and NPI 1891767042, issued on Feb 2, 2006. Check the license (Wisconsin 71651, as entered in NPPES) on the Wisconsin Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Mitchell Felder
- Credential
- MD
- Primary taxonomy
- Neurology Physician 2084N0400X
- License numbers
- 71651 WI
40222 SC
MD2018-0645 NM
Self-reported in NPPES; status is on the state search - Practice location
- 1000 N Oak Avenue, Marshfield, WI 54449
- Phone
- (715) 387-5511
- Enumerated
- Feb 2, 2006
- Record last updated
- Sep 10, 2025
- Medicare enrollment
- Enrolled (PECOS I20260107000125); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest neurology physician records → All 399 in Wisconsin → Look up another NPI →
Also registered at 1000 N Oak Avenue
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Matthew Biller, MDPsychiatry Physician1336600360
- Amy Blake, M.D.Pediatrics Physician1871737668
- Michael Katsnelson, M.D.Neurology Physician1013170067
- Ashley Korchyk, PA-CPhysician Assistant1649780701
- Chris Liakonis, DOThoracic Surgery (Cardiothoracic Vascular Surgery) Physician1437117512
Verify Mitchell Felder in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWisconsin Medical Examining Board
Search for license 71651Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
48% fewer Medicare Part D claims than the average neurology physician in 2024
714 Medicare Part D claims for 280 beneficiaries, against an average of 1,370 among the 15,005 providers of this specialty who prescribed in Part D.
Most prescribed
- Donepezil Hcl64 claims
- Gabapentin58 claims
- Carbidopa-Levodopa56 claims
- Levetiracetam47 claims
- Topiramate31 claims
- Memantine Hcl27 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
- St Vincent HospitalSanta Fe, NM
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Mitchell Felder among 399 neurology physician records in Wisconsin
Mitchell Felder, MD is one of 399 neurology physician records with a practice address in Wisconsin. 77% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 4% of them.
- NPI issued2006 · 4% of these records are older, 53% newer
- In a Medicare fileYes · 77% of these records are
- In the CMS Doctors and Clinicians fileYes · 69% of these records are
- Graduated1983 · median 2005 among the 274 with a school on file
- Record last updated2025 · 51% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084N0400X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
14 neurology physician records list a practice address in Marshfield
They are 14 of the 1,360 NPPES records with a practice address in Marshfield, and 399 neurology physician records in Wisconsin.
All 399 in Wisconsin → Every provider in Marshfield → Neurology Physician nationwide →
The 8 neurology physician records with the nearest ZIP codes
- Jaime Boero, MD PHDMarshfield, WI 544491902822133
- L Campbell, MDMarshfield, WI 544491477587889
- Caryl Dellinger, MDMarshfield, WI 544491588833925
- Percy Karanjia, MDMarshfield, WI 544491104936384
- Michael Katsnelson, M.D.Marshfield, WI 544491013170067
- Monica Koehn, MDMarshfield, WI 544491992811012
- Benjamin Lawler, MDMarshfield, WI 544491629188800
- Kenneth Madden, MD PHDMarshfield, WI 544491366552549
Common questions
What is Mitchell Felder, MD's NPI number?
Mitchell Felder, MD's National Provider Identifier (NPI) is 1891767042, issued on Feb 2, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Mitchell Felder, MD located?
The NPPES record lists a practice address at 1000 N Oak Avenue, Marshfield, WI, 54449. Phone: (715) 387-5511. Providers update this record themselves, so call before visiting.
How can I verify Mitchell Felder, MD's license?
NPPES lists Wisconsin license number 71651, 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 Mitchell Felder, MD prescribe under Medicare Part D?
In 2024, Mitchell Felder, MD had 714 Medicare Part D claims for 280 beneficiaries; the average among neurology physician prescribers was 1,370. 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.