Quick answers
- Does Zechariah D. Spychalla accept Medicare assignment?
- Yes. Medicare's clinician data says Zechariah D. Spychalla 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 Zechariah D. Spychalla see?
- In 2024, CMS data shows 180 Original Medicare patients and 241 services for Zechariah D. Spychalla. This counts Original Medicare only and measures volume, not quality.
- What is Zechariah D. Spychalla's NPI number?
- 1578806790. 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 Zechariah D. Spychalla, 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 patients | 180 |
|---|---|
| Services billed to Medicare | 241 |
| Different services or procedures | 15 |
| Participating Medicare provider | Yes |
| Average age of these patients | 72 |
Most frequent services
- Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)68 services
- Emergency department visit with moderate level of medical decision making (99284)58 services
- Emergency department visit with high level of medical decision making (99285)55 services
- Emergency department visit with low level of medical decision making (99283)28 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%
- Arthritis55%
- Diabetes42%
- Anxiety41%
- Chronic kidney disease41%
Hospitals where Zechariah D. Spychalla works
Medicare's Facility Affiliation Data lists Zechariah D. Spychalla 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.
- Aurora BayCare Medical CenterGreen Bay, WI · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 520193
- Aurora Medical Center Manitowoc CountyTwo Rivers, WI · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 520034
- Aurora Medical Center OshkoshOshkosh, WI · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 520198
Practice locations
Addresses where Zechariah D. Spychalla is enrolled with Medicare (CMS data updated October 2, 2026).
- 2845 Greenbrier RdGreen Bay, WI 54311 (920) 288‑8000
- 2845 Greenbrier Rd, Suite 220Green Bay, WI 54311 (920) 288‑8230
- 5000 Memorial DrTwo Rivers, WI 54241 (920) 794‑5000
- 855 N Westhaven DrOshkosh, WI 54904 (920) 303‑8700
Group practices
Medicare enrollment lists Zechariah D. Spychalla as a member of these groups (CMS data updated October 2, 2026).
- Aurora Medical Group, Inc.3,813 clinicians in the group
- BayCare Clinic LLP200 clinicians in the group
- BayCare Aurora LLC194 clinicians in the group
- Aurora Health Care North Inc19 clinicians in the group
Specialties
- Emergency Medicineprimary
Other emergency medicine doctors in Green Bay
Clinicians with the same Medicare primary specialty in Green Bay, WI — not a recommendation.
Other clinicians in Aurora Medical Group, Inc.
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2013 (13 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1578806790 |
| Corrections | Report 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
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians