Registry data as of Aug 27, 2026

Mary Catherine Decker, DDS

Dentist · Madison, WI

Mary Catherine Decker, DDS is a dentist with a practice address in Madison, Wisconsin, and NPI 1336792787, issued on Jul 24, 2019. Check the license (Wisconsin 1002163, 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, loaded Aug 27, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordas of Aug 27, 2026
1336792787
Name
Mary Catherine Decker
Credential
DDS
Primary taxonomy
Dentist 122300000X
License number
1002163 WI
Self-reported in NPPES; status is on the state search
Practice location
8002 Watts RD, Madison, WI 53719
Phone
(608) 831-7770
Enumerated
Jul 24, 2019
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 8002 Watts RD

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

  1. Josephine JohnsonDentist1689300493
  2. Jack MelmsStudent in an Organized Health Care Education/Training Program1508607425

Verify Mary Catherine Decker 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 1002163
    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

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

21% fewer Medicare Part D claims than the average dentist in 2024

71 Medicare Part D claims for 39 beneficiaries, against an average of 90 among the 51,502 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.

  1. Mary Catherine Decker71
  2. Specialty average90

Most prescribed

  1. Chlorhexidine Gluconate28 claims
  2. Amoxicillin17 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.

Industry payments in 2024: $24.65

1 payment, mostly food and beverage; the largest payer was Straumann USA LLC. The 32,932 providers of this specialty with any payment received $579.61 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Mary Catherine Decker$24.65
  2. Specialty average$579.61

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

Dentist providers in Wisconsin

There are 1,719 dentist records in Wisconsin.

Other dentist records in Wisconsin

  1. Komail Abbas, D.M.D.Kenosha, WI1114206109
  2. Hooman Abdolisereshki, DDSPlymouth, WI1619369279
  3. Megan Abell, DDSMadison, WI1346477361
  4. Matthew Abraham, DDSLadysmith, WI1912350448
  5. Reena Abraham, DMDMarshfield, WI1457589491
  6. Nicolas Abujamra, DDS, MSGreen Bay, WI1720123201
  7. Guillermo Aceves, DDSJanesville, WI1447090766
  8. Amber Ackerman, DMDMount Horeb, WI1497646509
  9. Erica Adams, DMDMadison, WI1275101909
  10. Hala Afifa, DDSMilwaukee, WI1891363198

Common questions

What is Mary Catherine Decker, DDS's NPI number?

Mary Catherine Decker, DDS's National Provider Identifier (NPI) is 1336792787, issued on Jul 24, 2019. An NPI identifies a provider in billing; it is not a license.

Where is Mary Catherine Decker, DDS located?

The NPPES record lists a practice address at 8002 Watts RD, Madison, WI, 53719. Phone: (608) 831-7770. Providers update this record themselves, so call before visiting.

How can I verify Mary Catherine Decker, DDS's license?

NPPES lists Wisconsin license number 1002163, as entered by the provider. Search the Wisconsin board that licenses this profession; the NPPES record confirms identity only.

How much does Mary Catherine Decker, DDS prescribe under Medicare Part D?

In 2024, Mary Catherine Decker, DDS had 71 Medicare Part D claims for 39 beneficiaries; the average among dentist prescribers was 90. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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.

Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.