NPPES file of Aug 9, 2026

Michael A. Witcik, MD

Cardiovascular Disease Physician · La Crosse, WI

Michael A. Witcik, MD is a cardiovascular disease physician with a practice address in La Crosse, Wisconsin, and NPI 1568625713, issued on Jul 8, 2008. Check the license (Wisconsin 52621, 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
1568625713
Name
Michael A. Witcik
Credential
MD
Primary taxonomy
Cardiovascular Disease Physician 207RC0000X
License number
52621 WI
Self-reported in NPPES; status is on the state search
Practice location
1836 South Ave, La Crosse, WI 54601
Phone
(608) 782-7300
Enumerated
Jul 8, 2008
Record last updated
Dec 23, 2013 (not updated in 13 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20090312000174); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 1836 South Ave

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

  1. Frank Aberger, MDGastroenterology Physician1396748711
  2. Bradley Abicht, DPMPodiatrist1962632166
  3. Carter Abicht, DOAnesthesiology Physician1932736642
  4. Grace AbichtCertified Registered Nurse Anesthetist1003651555
  5. Paul Abicht, CRNACertified Registered Nurse Anesthetist1528061843
  6. Mateen Abidi, M.DCardiovascular Disease Physician1730333980

Verify Michael A. Witcik in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWisconsin Medical Examining Board
    Search for license 52621
    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.

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72% fewer Medicare Part D claims than the average cardiovascular disease physician in 2024

854 Medicare Part D claims for 203 beneficiaries, against an average of 3,078 among the 20,728 providers of this specialty who prescribed in Part D. Brand-name drugs were 26% of claims.

  1. Michael Witcik854
  2. Specialty average3,078

Most prescribed

  1. Metoprolol Succinate97 claims
  2. Atorvastatin Calcium73 claims
  3. Eliquis66 claims
  4. Metoprolol Tartrate65 claims
  5. Furosemide58 claims
  6. Entresto56 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.

Bills Medicare through 11 group practices

  1. Black River Health IncBlack River Falls, WI
  2. Gundersen Clinic LtdSparta, WI
  3. Gundersen Lutheran Medical Center IncWinona, MN
  4. Gundersen Regional Clinics, LLCDecorah, IA
  5. Memorial Hospital OF BoscobelBoscobel, WI
  6. Moundview Memorial Hospital And Clinics, Inc.Friendship, WI
  7. Saint Elizabeths Hospital OF Wabasha IncWabasha, MN
  8. St Joseph's Health Services IncLa Crosse, WI
  9. Tomah Memorial Hospital IncTomah, WI
  10. Tri-County Memorial Hospital IncWhitehall, WI
  11. Vernon Memorial Healthcare IncViroqua, WI

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Michael A. Witcik among 449 cardiovascular disease physician records in Wisconsin

Michael A. Witcik, MD is one of 449 cardiovascular disease physician records with a practice address in Wisconsin. 77% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 64% of them.

  • NPI issued2008 · 64% of these records are older, 31% newer
  • In a Medicare fileYes · 77% of these records are
  • In the CMS Doctors and Clinicians fileYes · 62% of these records are
  • Graduated2007 · median 2001 among the 279 with a school on file
  • Record last updated2013 · 53% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RC0000X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Cardiovascular Disease Physician providers in Wisconsin

There are 449 cardiovascular disease physician records in Wisconsin.

The 8 cardiovascular disease physician records with the nearest ZIP codes

  1. Raju Ailiani, MDLa Crosse, WI 546011831192194
  2. Kristen Andresen, MDLa Crosse, WI 546011669489514
  3. Julio Bird, MDLa Crosse, WI 546011407850381
  4. Ward Brown, MDLa Crosse, WI 546011720082381
  5. Charles Cagin, DOLa Crosse, WI 546011720061096
  6. Stephen Devine, MDLa Crosse, WI 546011144225335
  7. Adie Harbin, MDLa Crosse, WI 546011053316661
  8. Kevin Jaeger, MDLa Crosse, WI 546011144226697

Common questions

What is Michael A. Witcik, MD's NPI number?

Michael A. Witcik, MD's National Provider Identifier (NPI) is 1568625713, issued on Jul 8, 2008. An NPI identifies a provider in billing; it is not a license.

Where is Michael A. Witcik, MD located?

The NPPES record lists a practice address at 1836 South Ave, La Crosse, WI, 54601. Phone: (608) 782-7300. Providers update this record themselves, so call before visiting.

How can I verify Michael A. Witcik, MD's license?

NPPES lists Wisconsin license number 52621, 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 Michael A. Witcik, MD prescribe under Medicare Part D?

In 2024, Michael A. Witcik, MD had 854 Medicare Part D claims for 203 beneficiaries; the average among cardiovascular disease physician prescribers was 3,078. 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.