Ann M. Gierl, DO
Rheumatology Physician · Menasha, WI
Ann M. Gierl, DO is a rheumatology physician with a practice address in Menasha, Wisconsin, and NPI 1558356022, issued on Sep 12, 2005. Check the license (Wisconsin 32190, as entered in NPPES) on the Wisconsin Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Ann M. Gierl
- Credential
- DO
- Primary taxonomy
- Rheumatology Physician 207RR0500X
- License number
- 32190 WI
Self-reported in NPPES; status is on the state search - Practice location
- 1550 Midway PL, Menasha, WI 54952
- Phone
- (920) 727-8020
- Enumerated
- Sep 12, 2005
- Record last updated
- Sep 2, 2008 (not updated in 18 years: call before relying on the address or phone)
- Medicaid ID
- 30051200 WI
- Entity
- Type 1 · individual
8 nearest rheumatology physician records → All 154 in Wisconsin → Look up another NPI →
Also registered at 1550 Midway PL
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Ann M. Gierl in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWisconsin Medical Examining Board
Search for license 32190Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
99% fewer Medicare Part D claims than the average rheumatology physician in 2024
19 Medicare Part D claims, against an average of 1,978 among the 6,301 providers of this specialty who prescribed in Part D.
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): 95.8 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).
Ann M. Gierl among 154 rheumatology physician records in Wisconsin
Ann M. Gierl, DO is one of 154 rheumatology physician records with a practice address in Wisconsin. 76% 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 · 76% of these records are
- In the CMS Doctors and Clinicians fileNo · 63% of these records are
- Record last updated2008 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RR0500X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Rheumatology Physician providers in Wisconsin
There are 154 rheumatology physician records in Wisconsin.
All 154 in Wisconsin → Every provider in Menasha → Rheumatology Physician nationwide →
The 8 rheumatology physician records with the nearest ZIP codes
- Kent Partain, MDMenasha, WI 549521154316560
- Taylor Doberstein, D.O.Neenah, WI 549561215291075
- Eric Gowing, MDNeenah, WI 549561578557666
- John Grandone, M.D.Neenah, WI 549561467480681
- Manpreet Sethi, MBBSNeenah, WI 549561699035386
- Crystal Kleiber Balderrama, M.D.Fond Du Lac, WI 549351144545559
- Jeanna Owens, MDFond Du Lac, WI 549351831171966
- Karen Hansen, MDAppleton, WI 549111316914492
Common questions
What is Ann M. Gierl, DO's NPI number?
Ann M. Gierl, DO's National Provider Identifier (NPI) is 1558356022, issued on Sep 12, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Ann M. Gierl, DO located?
The NPPES record lists a practice address at 1550 Midway PL, Menasha, WI, 54952. Phone: (920) 727-8020. Providers update this record themselves, so call before visiting.
How can I verify Ann M. Gierl, DO's license?
NPPES lists Wisconsin license number 32190, 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 Ann M. Gierl, DO prescribe under Medicare Part D?
In 2024, Ann M. Gierl, DO had 19 Medicare Part D claims; the average among rheumatology physician prescribers was 1,978. Part D covers Medicare prescriptions only.
What is Ann M. Gierl, DO's MIPS final score?
The 2023 MIPS final score is 95.8 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.