NPPES file of Aug 9, 2026

Douglas Mims Ferris, D.M.D.

Endodontics · Madison, WI

Douglas Mims Ferris, D.M.D. is an endodontics with a practice address in Madison, Wisconsin, and NPI 1306850391, issued on Jul 28, 2006. Check the license (Wisconsin 5797-015, 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
1306850391
Name
Douglas Mims Ferris
Credential
D.M.D.
Primary taxonomy
Endodontics 1223E0200X
License number
5797-015 WI
Self-reported in NPPES; status is on the state search
Practice location
2418 Crossroads Dr, Madison, WI 53718
Phone
(608) 442-3300
Enumerated
Jul 28, 2006
Record last updated
Jun 14, 2017 (not updated in 9 years: call before relying on the address or phone)
Fax
(608) 442-3303
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 2418 Crossroads Dr

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

  1. Chad Campanelli, D.D.S.Endodontics1396967386
  2. Nabeel Khan, D.M.D., M.S.D.Endodontics1669424347

Verify Douglas Mims Ferris 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 5797-015
    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
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76% more Medicare Part D claims than the average endodontics in 2024

213 Medicare Part D claims for 151 beneficiaries, against an average of 121 among the 4,119 providers of this specialty who prescribed in Part D. 31 claims were for opioids.

  1. Douglas Ferris213
  2. Specialty average121

Most prescribed

  1. Amoxicillin128 claims
  2. Hydrocodone-Acetaminophen29 claims
  3. Chlorhexidine Gluconate27 claims
  4. Clindamycin Hcl18 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.

Douglas Mims Ferris among 83 endodontics records in Wisconsin

Douglas Mims Ferris, D.M.D. is one of 83 endodontics records with a practice address in Wisconsin. 64% 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 10% of them.

  • NPI issued2006 · 10% of these records are older, 63% newer
  • In a Medicare fileYes · 64% of these records are
  • In the CMS Doctors and Clinicians fileNo · 1% of these records are
  • Record last updated2017 · 80% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 1223E0200X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Endodontics providers in Wisconsin

There are 83 endodontics records in Wisconsin.

The 8 endodontics records with the nearest ZIP codes

  1. Chad Campanelli, D.D.S.Madison, WI 537181396967386
  2. Marilyn Henry, DMDMadison, WI 537181861844912
  3. Brittany Kawas, DDSMadison, WI 537181336689769
  4. Nabeel Khan, D.M.D., M.S.D.Madison, WI 537181669424347
  5. David Landwehr, DDS MSMadison, WI 537181447333414
  6. Frederick Katz, DDS MSDMadison, WI 537191902989973
  7. B Austin, DDSMadison, WI 537111225034374
  8. George Machian, DDSMadison, WI 537111447256599

Common questions

What is Douglas Mims Ferris, D.M.D.'s NPI number?

Douglas Mims Ferris, D.M.D.'s National Provider Identifier (NPI) is 1306850391, issued on Jul 28, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Douglas Mims Ferris, D.M.D. located?

The NPPES record lists a practice address at 2418 Crossroads Dr, Madison, WI, 53718. Phone: (608) 442-3300. Providers update this record themselves, so call before visiting.

How can I verify Douglas Mims Ferris, D.M.D.'s license?

NPPES lists Wisconsin license number 5797-015, as entered by the provider. Search the Wisconsin board that licenses this profession; the NPPES record confirms identity only.

How much does Douglas Mims Ferris, D.M.D. prescribe under Medicare Part D?

In 2024, Douglas Mims Ferris, D.M.D. had 213 Medicare Part D claims for 151 beneficiaries; the average among endodontics prescribers was 121. 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.