Mariellen Fischer, PHD
Neurology Physician · Milwaukee, WI
Mariellen Fischer, PHD is a neurology physician with a practice address in Milwaukee, Wisconsin, and NPI 1205880564, issued on May 20, 2006. Check the license (Wisconsin 1091, as entered in NPPES) on the Wisconsin Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Mariellen Fischer
- Credential
- PHD
- Primary taxonomy
- Neurology Physician 2084N0400X
- License number
- 1091 WI
Self-reported in NPPES; status is on the state search - Practice location
- Froedtert & Med College Clin - West, Milwaukee, WI 53226
- Phone
- (414) 805-3666
- Enumerated
- May 20, 2006
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Medicaid ID
- 39033000 WI
- Medicare enrollment
- Enrolled (PECOS I20130816000429); accepts Medicare assignment
- Medical or professional school
- University Of Vermont College Of Medicine, 1984
- Entity
- Type 1 · individual
8 nearest neurology physician records → All 399 in Wisconsin → Look up another NPI →
Also registered at Froedtert & Med College Clin - West
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Harvey Kleiner, MDPediatric Otolaryngology Physician1821042169
- Mary Otterson, MDSurgery Physician1255385001
- Nancy Raml, APNPNurse Practitioner1619921624
- William See, MDUrology Physician1457303208
- Wendy Vaerewyck, PACPhysician Assistant1841241510
Verify Mariellen Fischer in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWisconsin Medical Examining Board
Search for license 1091Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through one group practice
- Associated Mental Health Consultants IncWauwatosa, WI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Mariellen Fischer among 399 neurology physician records in Wisconsin
Mariellen Fischer, PHD 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
- Graduated1984 · median 2005 among the 274 with a school on file
- Record last updated2007 · 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).
Neurology Physician providers in Wisconsin
There are 399 neurology physician records in Wisconsin.
All 399 in Wisconsin → Every provider in Milwaukee → Neurology Physician nationwide →
The 8 neurology physician records with the nearest ZIP codes
- Piero Antuono, MDMilwaukee, WI 532261750332268
- Paul Barkhaus, MDMilwaukee, WI 532261205887601
- Humberto Battistini, MDMilwaukee, WI 532261174574594
- Jeffrey Binder, MDMilwaukee, WI 532261679524029
- Karen Blindauer, MDMilwaukee, WI 532261699726034
- Diane Book, MDMilwaukee, WI 532261396796744
- Malgorzata Franczak, MDMilwaukee, WI 532261558312488
- Kurt Hecox, MDMilwaukee, WI 532261164473997
Common questions
What is Mariellen Fischer, PHD's NPI number?
Mariellen Fischer, PHD's National Provider Identifier (NPI) is 1205880564, issued on May 20, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Mariellen Fischer, PHD located?
The NPPES record lists a practice address at Froedtert & Med College Clin - West, Milwaukee, WI, 53226. Phone: (414) 805-3666. Providers update this record themselves, so call before visiting.
How can I verify Mariellen Fischer, PHD's license?
NPPES lists Wisconsin license number 1091, 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.
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.