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Physician Assistant

Dale C. Groshek, PA

Works at hospitals in Prairie Du Chien, WI · La Crosse, WI · West Union, IA · Wisconsin, Iowa

Summary

Dale C. Groshek, PA is a physician assistant at 1600 Main St, Onalaska, WI 54650. Phone: (608) 783-4681. Accepts Medicare assignment. In 2024, Dale C. Groshek had 135 Original Medicare patients and 404 services. NPI 1487735395. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

From official Medicare data

This page shows what Medicare's official clinician data says about Dale C. Groshek, joined by NPI number (data updated October 2, 2026). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

Quick answers

Does Dale C. Groshek accept Medicare assignment?
Yes. Medicare's clinician data says Dale C. Groshek accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
How many Medicare patients does Dale C. Groshek see?
In 2024, CMS data shows 135 Original Medicare patients and 404 services for Dale C. Groshek. This counts Original Medicare only and measures volume, not quality.
What is Dale C. Groshek's NPI number?
1487735395. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Medicare activity in 2024

Official CMS public-use data for Dale C. Groshek, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.

Original Medicare patients135
Services billed to Medicare404
Different services or procedures17
Participating Medicare providerYes
Average age of these patients78

Most frequent services

  1. Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes (99231)79 services
  2. Advance care planning, first 30 minutes (99497)62 services
  3. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)57 services
  4. Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)54 services
  5. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)53 services

Chronic conditions among these patients

Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).

  • High blood pressure75%
  • High cholesterol75%
  • Chronic kidney disease67%
  • Heart failure67%
  • Atrial fibrillation50%
  • Arthritis47%

Hospitals where Dale C. Groshek works

Medicare's Facility Affiliation Data lists Dale C. Groshek at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.

Practice locations

Addresses where Dale C. Groshek is enrolled with Medicare (CMS data updated October 2, 2026). The first 5 of 7; the Medicare profile lists all.

Group practices

Medicare enrollment lists Dale C. Groshek as a member of these groups (CMS data updated October 2, 2026).

  • Gundersen Lutheran Medical Center Inc895 clinicians in the group
  • Gundersen Clinic Ltd418 clinicians in the group

Specialties

Find other clinicians: Physician Assistant, Wisconsin →

Other physician assistants in Onalaska

Clinicians with the same Medicare primary specialty in Onalaska, WI — not a recommendation.

All physician assistants in Onalaska →

Other clinicians in Gundersen Lutheran Medical Center Inc

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

Clinician information

CredentialPA
Graduation year1999
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1487735395
CorrectionsReport an error or suggest an update →

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

  1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
  2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
  3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  4. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
  5. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  6. Medicare Care Compare — official Medicare tool to look up clinicians