Kay Ellen Theyerl, M.D.
Internal Medicine Physician · Neenah, WI
Kay Ellen Theyerl, M.D. is an internal medicine physician with a practice address in Neenah, Wisconsin, and NPI 1669473674, issued on Aug 2, 2005. Check the license (Wisconsin 46219-020, as entered in NPPES) on the Wisconsin Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Kay Ellen Theyerl
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 46219-020 WI
Self-reported in NPPES; status is on the state search - Practice location
- 200 Theda Clark Medical Plz, Neenah, WI 54956
- Phone
- (920) 725-2070
- Enumerated
- Aug 2, 2005
- Record last updated
- Jun 25, 2012 (not updated in 14 years: call before relying on the address or phone)
- Fax
- (920) 725-4549
- Medicaid ID
- 34471300 WI
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 2,078 in Wisconsin → Look up another NPI →
Also registered at 200 Theda Clark Medical Plz
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Mary Barker, FNP-CNurse Practitioner1902807639
- Angela BehmSurgical Technologist1043503360
- Christina Danz, N.P.Women's Health Nurse Practitioner1659376614
- Richard Dziewit, CRNACertified Registered Nurse Anesthetist1306588256
- Eric Eberts, M.D.Obstetrics & Gynecology Physician1790780708
- Timothy Edison, MDGastroenterology Physician1861425902
Verify Kay Ellen Theyerl in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWisconsin Medical Examining Board
Search for license 46219-020Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Industry payments in 2024: $370.39
21 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Kay Ellen Theyerl among 2,078 internal medicine physician records in Wisconsin
Kay Ellen Theyerl, M.D. is one of 2,078 internal medicine physician records with a practice address in Wisconsin. 70% 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, 91% newer
- In a Medicare fileYes · 70% of these records are
- In the CMS Doctors and Clinicians fileNo · 53% of these records are
- Record last updated2012 · 55% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
22 internal medicine physician records list a practice address in Neenah
They are 22 of the 919 NPPES records with a practice address in Neenah, and 2,078 internal medicine physician records in Wisconsin.
All 2,078 in Wisconsin → Every provider in Neenah → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Curtis Baltz, MDNeenah, WI 549561316939325
- Michael Beckett, MDNeenah, WI 549561417941337
- James Burns, MDNeenah, WI 549561225022080
- Thomas Duncan, MDNeenah, WI 549561588641039
- Mark Hermans, MDNeenah, WI 549561386676948
- Roxanne Jadin Cardelli, MDNeenah, WI 549561750339040
- Steven Knaus, MDNeenah, WI 549561457332215
- Paul McAvoy, MDNeenah, WI 549561992799779
Common questions
What is Kay Ellen Theyerl, M.D.'s NPI number?
Kay Ellen Theyerl, M.D.'s National Provider Identifier (NPI) is 1669473674, issued on Aug 2, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Kay Ellen Theyerl, M.D. located?
The NPPES record lists a practice address at 200 Theda Clark Medical Plz, Neenah, WI, 54956. Phone: (920) 725-2070. Providers update this record themselves, so call before visiting.
How can I verify Kay Ellen Theyerl, M.D.'s license?
NPPES lists Wisconsin license number 46219-020, 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.