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Internal Medicine

Sheila W. Thiel, MD

Works at hospitals in Green Bay, WI · Wisconsin

Summary

Dr. Sheila W. Thiel, MD is an internal medicine doctor at 2845 Greenbrier Rd, Green Bay, WI 54311. Phone: (920) 288-8000. Accepts Medicare assignment. In 2024, Sheila W. Thiel had 125 Original Medicare patients and 365 services. NPI 1265452296. 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: Internal medicine doctor (Medicare lists Internal Medicine)
  • Address: 2845 Greenbrier Rd, Green Bay, WI 54311 · Directions
  • Phone: (920) 288‑8000
  • Medicare: Accepts Medicare assignment
  • Hospital: St Marys Hospital Medical Center
  • Group practice: Aurora Medical Group, Inc. (+1 more)
  • Medical school: University Of Alabama School Of Medicine · graduated 1997 (29 years since medical school)
  • Gender (as listed): Female
  • Telehealth: offered

From official Medicare data

This page shows what Medicare's official clinician data says about Sheila W. Thiel, 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 Sheila W. Thiel accept Medicare assignment?
Yes. Medicare's clinician data says Sheila W. Thiel 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 Sheila W. Thiel see?
In 2024, CMS data shows 125 Original Medicare patients and 365 services for Sheila W. Thiel. This counts Original Medicare only and measures volume, not quality.
What is Sheila W. Thiel's NPI number?
1265452296. 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 Sheila W. Thiel, 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 patients125
Services billed to Medicare365
Different services or procedures12
Participating Medicare providerYes
Average age of these patients79

Most frequent services

  1. Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes (99309)164 services
  2. Initial nursing facility care with high level of medical decision making, per day, if using time, 50 minutes or more (99306)76 services
  3. Initial nursing facility care with moderate level of medical decision making, per day, if using time, at least 35 minutes (99305)49 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%
  • Arthritis75%
  • Chronic kidney disease65%
  • Depression55%
  • Anxiety49%

Hospitals where Sheila W. Thiel works

Medicare's Facility Affiliation Data lists Sheila W. Thiel 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 Sheila W. Thiel is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Sheila W. Thiel as a member of these groups (CMS data updated October 2, 2026).

  • Aurora Medical Group, Inc.3,813 clinicians in the group
  • BayCare Aurora LLC194 clinicians in the group

Specialties

Find other Internal Medicine doctors in Wisconsin →

Other internal medicine doctors in Green Bay

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

All internal medicine doctors in Green Bay →

Other clinicians in Aurora Medical Group, Inc.

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

Clinician information

CredentialMD
Medical schoolUniversity Of Alabama School Of Medicine
Graduation year1997 (29 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1265452296
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