Kim R. Riess-Sagers, MD
Nephrology Physician · Neenah, WI
Kim R. Riess-Sagers, MD is a nephrology physician with a practice address in Neenah, Wisconsin, and NPI 1235173121, issued on Jun 15, 2006. Check the license (Wisconsin 32361, as entered in NPPES) on the Wisconsin Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Kim R. Riess-Sagers
- Credential
- MD
- Primary taxonomy
- Nephrology Physician 207RN0300X
- License number
- 32361 WI
Self-reported in NPPES; status is on the state search - Practice location
- 300 N Commercial St, Neenah, WI 54956
- Phone
- (920) 886-0818
- Enumerated
- Jun 15, 2006
- Record last updated
- Jun 1, 2022
- Fax
- (920) 886-0773
- Medicaid IDs
- 21280500 WI
31720300 WI - Entity
- Type 1 · individual
8 nearest nephrology physician records → All 207 in Wisconsin → Look up another NPI →
Also registered at 300 N Commercial St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Osaid Ahmad, MDNephrology Physician1689618589
- David Koeper, MDNephrology Physician1487698387
- Jennifer McCormick, PAMedical Physician Assistant1669423323
- Atif Qureshi, MDNephrology Physician1629014790
- Laura Stafford, APNPAcute Care Nurse Practitioner1245848423
Verify Kim R. Riess-Sagers in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWisconsin Medical Examining Board
Search for license 32361Check 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 nephrology physician in 2024
20 Medicare Part D claims, against an average of 1,465 among the 10,986 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of 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.
Kim R. Riess-Sagers among 207 nephrology physician records in Wisconsin
Kim R. Riess-Sagers, MD is one of 207 nephrology physician records with a practice address in Wisconsin. 86% 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 11% of them.
- NPI issued2006 · 11% of these records are older, 56% newer
- In a Medicare fileYes · 86% of these records are
- In the CMS Doctors and Clinicians fileNo · 76% of these records are
- Record last updated2022 · 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 207RN0300X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Nephrology Physician providers in Wisconsin
There are 207 nephrology physician records in Wisconsin.
All 207 in Wisconsin → Every provider in Neenah → Nephrology Physician nationwide →
The 8 nephrology physician records with the nearest ZIP codes
- Osaid Ahmad, MDNeenah, WI 549561689618589
- Imran Baloch, M.DNeenah, WI 549561659399822
- David Koeper, MDNeenah, WI 549561487698387
- Atif Qureshi, MDNeenah, WI 549561629014790
- Bret Pasiuk, M.D.Fond Du Lac, WI 549351447242490
- Sameer Gupta, MDFond Du Lac, WI 549341669638508
- Jahangir Momin, MDAppleton, WI 549151376578518
- Tazeen Jafar, MDAppleton, WI 549111174574412
Common questions
What is Kim R. Riess-Sagers, MD's NPI number?
Kim R. Riess-Sagers, MD's National Provider Identifier (NPI) is 1235173121, issued on Jun 15, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Kim R. Riess-Sagers, MD located?
The NPPES record lists a practice address at 300 N Commercial St, Neenah, WI, 54956. Phone: (920) 886-0818. Providers update this record themselves, so call before visiting.
How can I verify Kim R. Riess-Sagers, MD's license?
NPPES lists Wisconsin license number 32361, 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 Kim R. Riess-Sagers, MD prescribe under Medicare Part D?
In 2024, Kim R. Riess-Sagers, MD had 20 Medicare Part D claims; the average among nephrology physician prescribers was 1,465. 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.