Katie Marie-Tietz Spangler, M.D.
Neurology Physician · Milwaukee, WI
Katie Marie-Tietz Spangler, M.D. is a neurology physician with a practice address in Milwaukee, Wisconsin, and NPI 1417038084, issued on Oct 18, 2006. Check the license (Wisconsin 49761-20, as entered in NPPES) on the Wisconsin Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Katie Marie-Tietz Spangler
- Credential
- M.D.
- Primary taxonomy
- Neurology Physician 2084N0400X
- License number
- 49761-20 WI
Self-reported in NPPES; status is on the state search - Practice location
- 9200 W Wisconsin Ave, Milwaukee, WI 53226
- Phone
- (414) 805-5254
- Enumerated
- Oct 18, 2006
- Record last updated
- Apr 2, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20090617000204); accepts Medicare assignment
- Medical or professional school
- Medical College Of Wisconsin, 2005
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest neurology physician records → All 399 in Wisconsin → Look up another NPI →
Also registered at 9200 W Wisconsin Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Lolia Abibo, M.D.Hospitalist Physician1912359795
- Haisam Abid, MBBSHospitalist Physician1578083184
- Faith Abodunrin, MDHematology & Oncology Physician1437768769
Verify Katie Marie-Tietz Spangler in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWisconsin Medical Examining Board
Search for license 49761-20Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.1 times the Medicare Part D claims of the average neurology physician in 2024
2,888 Medicare Part D claims for 346 beneficiaries, against an average of 1,370 among the 15,005 providers of this specialty who prescribed in Part D. 11 claims were for opioids.
Most prescribed
- Carbidopa-Levodopa562 claims
- Rytary163 claims
- Carbidopa-Levodopa Er162 claims
- Gabapentin137 claims
- Donepezil Hcl133 claims
- Primidone130 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.
The practice group's MIPS final score for 2023 (Medicare payment program): 78.9 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Mchs Hospitals IncMarshfield, WI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Katie Marie-Tietz Spangler among 399 neurology physician records in Wisconsin
Katie Marie-Tietz Spangler, M.D. 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
- Graduated2005 · median 2005 among the 274 with a school on file
- Record last updated2021 · 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 Katie Marie-Tietz Spangler, M.D.'s NPI number?
Katie Marie-Tietz Spangler, M.D.'s National Provider Identifier (NPI) is 1417038084, issued on Oct 18, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Katie Marie-Tietz Spangler, M.D. located?
The NPPES record lists a practice address at 9200 W Wisconsin Ave, Milwaukee, WI, 53226. Phone: (414) 805-5254. Providers update this record themselves, so call before visiting.
How can I verify Katie Marie-Tietz Spangler, M.D.'s license?
NPPES lists Wisconsin license number 49761-20, 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 Katie Marie-Tietz Spangler, M.D. prescribe under Medicare Part D?
In 2024, Katie Marie-Tietz Spangler, M.D. had 2,888 Medicare Part D claims for 346 beneficiaries; the average among neurology physician prescribers was 1,370. Part D covers Medicare prescriptions only.
What is Katie Marie-Tietz Spangler, M.D.'s MIPS final score?
The 2023 MIPS final score is 78.9 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.