NPPES file of Aug 9, 2026

Richard W. Clasen, M.D.

Internal Medicine Physician · Wisconsin Rapids, WI

Richard W. Clasen, M.D. is an internal medicine physician with a practice address in Wisconsin Rapids, Wisconsin, and NPI 1972521995, issued on Jul 17, 2006. Check the license (Wisconsin 22783, as entered in NPPES) on the Wisconsin Medical Examining Board; 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
1972521995
Name
Richard W. Clasen
Credential
M.D.
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
22783 WI
Self-reported in NPPES; status is on the state search
Practice location
2031 Peach St, Wisconsin Rapids, WI 54494
Phone
(715) 423-0122
Enumerated
Jul 17, 2006
Record last updated
Dec 6, 2012 (not updated in 14 years: call before relying on the address or phone)
Fax
(715) 422-7752
Medicaid ID
30297900 WI
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.
Download card Updates feed

Also registered at 2031 Peach St

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

  1. Bradley Boettcher, MDFamily Medicine Physician1487666947
  2. Philip Bovet, DO, MPHFamily Medicine Physician1912118308
  3. Sean Cashin, M.D.Surgery Physician1558564203
  4. Regis Chamberlin, MDPediatrics Physician1922114255
  5. Floyd Dauenhauer, MDObstetrics & Gynecology Physician1699881953
  6. Scott Dickman, MDFamily Medicine Physician1588676977

Verify Richard W. Clasen in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWisconsin Medical Examining Board
    Search for license 22783    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
Open 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.

Is this page about you? You can ask us to correct, restrict or remove it: how.

45% fewer Medicare Part D claims than the average internal medicine physician in 2024

1,745 Medicare Part D claims for 69 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.

  1. Richard Clasen1,745
  2. Specialty average3,176

Most prescribed

  1. Furosemide154 claims
  2. Atorvastatin Calcium119 claims
  3. Levothyroxine Sodium107 claims
  4. Potassium Chloride86 claims
  5. Xarelto85 claims
  6. Eliquis58 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.

6 internal medicine physician records list a practice address in Wisconsin Rapids

They are 6 of the 507 NPPES records with a practice address in Wisconsin Rapids, and 2,078 internal medicine physician records in Wisconsin.

All 6 in Wisconsin Rapids → All 2,078 in Wisconsin → Every provider in Wisconsin Rapids →

Other internal medicine physician records in Wisconsin

  1. Sheetal Aatrai, MDMarshfield, WI1417568965
  2. Khalid Abdelgadir, MDManitowoc, WI1407433295
  3. Mesfin Abdissa, MDMilwaukee, WI1376579417
  4. Anas Abed, MDMadison, WI1659002566
  5. Margaret Abel, MDRhinelander, WI1477590487
  6. Mesfin Abera, M.D.Beaver Dam, WI1972852390
  7. Vidthya Abraham, M.D.Madison, WI1861836058
  8. Ismael Abu Limon, MDGreenfield, WI1467945543
  9. Amjed Abu Muhanna, MDMarinette, WI1861514135
  10. Satish Achanti, MDAppleton, WI1982711198

Common questions

What is Richard W. Clasen, M.D.'s NPI number?

Richard W. Clasen, M.D.'s National Provider Identifier (NPI) is 1972521995, issued on Jul 17, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Richard W. Clasen, M.D. located?

The NPPES record lists a practice address at 2031 Peach St, Wisconsin Rapids, WI, 54494. Phone: (715) 423-0122. Providers update this record themselves, so call before visiting.

How can I verify Richard W. Clasen, M.D.'s license?

NPPES lists Wisconsin license number 22783, 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 Richard W. Clasen, M.D. prescribe under Medicare Part D?

In 2024, Richard W. Clasen, M.D. had 1,745 Medicare Part D claims for 69 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.