NPPES file of Aug 9, 2026

Matthew Karls, D.D.S.

General Practice Dentistry · Waunakee, WI

Matthew Karls, D.D.S. is a general practice dentistry with a practice address in Waunakee, Wisconsin, and NPI 1982933453, issued on Dec 13, 2009. Check the license (Wisconsin 6465-15, as entered in NPPES) with the Wisconsin board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1982933453
Name
Matthew Karls
Credential
D.D.S.
Primary taxonomy
General Practice Dentistry 1223G0001X
License number
6465-15 WI
Self-reported in NPPES; status is on the state search
Practice location
400 W 2ND St, Waunakee, WI 53597
Phone
(608) 849-4199
Enumerated
Dec 13, 2009
Record last updated
Dec 13, 2009 (not updated in 17 years: call before relying on the address or phone)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 400 W 2ND St

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Stanley Karls, DDSGeneral Practice Dentistry1144365354

Verify Matthew Karls in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Wisconsin board licenses this profession
    Search for license 6465-15
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the Wisconsin license search

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Industry payments in 2024: $6.01

1 payment: food and beverage; the largest payer was Align Technology, Inc. The 41,669 providers of this specialty with any payment received $597.01 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Matthew Karls$6.01
  2. Specialty average$597.01

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Matthew Karls among 2,305 general practice dentistry records in Wisconsin

Matthew Karls, D.D.S. is one of 2,305 general practice dentistry records with a practice address in Wisconsin. 57% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2009, is newer than 62% of them.

  • NPI issued2009 · 62% of these records are older, 35% newer
  • In a Medicare fileYes · 57% of these records are
  • In the CMS Doctors and Clinicians fileNo · under 1% of these records are
  • Record last updated2009 · 75% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 1223G0001X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

12 general practice dentistry records list a practice address in Waunakee

They are 12 of the 174 NPPES records with a practice address in Waunakee, and 2,305 general practice dentistry records in Wisconsin.

The 8 general practice dentistry records with the nearest ZIP codes

  1. Abigail Conger, DDSWaunakee, WI 535971942780663
  2. Aimee D'Amour, DDSWaunakee, WI 535971245674258
  3. Jacinda Edgar, DMDWaunakee, WI 535971437042405
  4. Stanley Karls, DDSWaunakee, WI 535971144365354
  5. Sami Kawas, DDSWaunakee, WI 535971609301027
  6. Paul Maggio, D.D.S.Waunakee, WI 535971194712901
  7. Gordon Meffert, D.D.SWaunakee, WI 535971326250135
  8. David Niles, D.D.S.Waunakee, WI 535971215051529

Common questions

What is Matthew Karls, D.D.S.'s NPI number?

Matthew Karls, D.D.S.'s National Provider Identifier (NPI) is 1982933453, issued on Dec 13, 2009. An NPI identifies a provider in billing; it is not a license.

Where is Matthew Karls, D.D.S. located?

The NPPES record lists a practice address at 400 W 2ND St, Waunakee, WI, 53597. Phone: (608) 849-4199. Providers update this record themselves, so call before visiting.

How can I verify Matthew Karls, D.D.S.'s license?

NPPES lists Wisconsin license number 6465-15, as entered by the provider. Search the Wisconsin board that licenses this profession; the NPPES record confirms identity 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.