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Family Practice

Elizabeth P. Pionk, DO

Works at hospitals in Bay City, MI · Caro, MI · Mount Pleasant, MI … · Michigan

Summary

Dr. Elizabeth P. Pionk, DO is a family doctor at 1900 Columbus Ave, Bay City, MI 48708. Phone: (989) 894-3000. Accepts Medicare assignment. In 2024, Elizabeth P. Pionk had 271 Original Medicare patients and 546 services. NPI 1033523287. 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.

  • Specialty: Family doctor (Medicare lists Family Practice)
  • Address: 1900 Columbus Ave, Bay City, MI 48708 · Directions (2 more locations)
  • Phone: (989) 894‑3000
  • Medicare: Accepts Medicare assignment
  • Hospitals: McLaren Bay Region, McLaren Caro Region, McLaren Central Michigan and 1 more
  • Group practice: McLaren Hospital Group (+1 more)
  • Medical school: University Of Pikeville, Kentucky College Of Osteopathic Med · graduated 2014 (12 years since medical school)
  • Gender (as listed): Female

From official Medicare data

This page shows what Medicare's official clinician data says about Elizabeth P. Pionk, 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 Elizabeth P. Pionk accept Medicare assignment?
Yes. Medicare's clinician data says Elizabeth P. Pionk 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 Elizabeth P. Pionk see?
In 2024, CMS data shows 271 Original Medicare patients and 546 services for Elizabeth P. Pionk. This counts Original Medicare only and measures volume, not quality.
What is Elizabeth P. Pionk's NPI number?
1033523287. 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 Elizabeth P. Pionk, 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 patients271
Services billed to Medicare546
Different services or procedures20
Participating Medicare providerYes
Average age of these patients74

Most frequent services

  1. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)185 services
  2. Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)94 services
  3. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)83 services
  4. Hospital discharge day management, more than 30 minutes (99239)58 services
  5. Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)47 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%
  • Ischemic heart disease64%
  • Arthritis58%
  • Diabetes48%
  • Depression48%

Hospitals where Elizabeth P. Pionk works

Medicare's Facility Affiliation Data lists Elizabeth P. Pionk 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.

  • McLaren Bay RegionBay City, MI · Acute Care Hospital · Medicare rating: 1 of 5 stars · Emergency services: listed by Medicare · CCN 230041
  • McLaren Caro RegionCaro, MI · Critical Access Hospital · Emergency services: listed by Medicare · CCN 231329
  • McLaren Central MichiganMount Pleasant, MI · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 230080
  • McLaren Thumb RegionBad Axe, MI · Critical Access Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 231340

Practice locations

Addresses where Elizabeth P. Pionk is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Elizabeth P. Pionk as a member of these groups (CMS data updated October 2, 2026).

  • McLaren Hospital Group375 clinicians in the group
  • McLaren Bay Region113 clinicians in the group

Specialties

Find other Family Practice doctors in Michigan →

Other family doctors in Bay City

Clinicians with the same Medicare primary specialty in Bay City, MI — not a recommendation.

All family doctors in Bay City →

Other clinicians in McLaren Hospital Group

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

Clinician information

CredentialDO
Medical schoolUniversity Of Pikeville, Kentucky College Of Osteopathic Med
Graduation year2014 (12 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1033523287
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