Quick answers
- Does Iris Theodora C. Perez-Marquardt accept Medicare assignment?
- Yes. Medicare's clinician data says Iris Theodora C. Perez-Marquardt 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 Iris Theodora C. Perez-Marquardt see?
- In 2024, CMS data shows 62 Original Medicare patients and 88 services for Iris Theodora C. Perez-Marquardt. This counts Original Medicare only and measures volume, not quality.
- What is Iris Theodora C. Perez-Marquardt's NPI number?
- 1306825872. 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 Iris Theodora C. Perez-Marquardt, 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 | 62 |
|---|---|
| Services billed to Medicare | 88 |
| Different services or procedures | 29 |
| Participating Medicare provider | Yes |
| Average age of these patients | 71 |
Most frequent services
- X-ray of chest, 2 views (71046)20 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 cholesterol75%
- High blood pressure69%
- Anxiety45%
- Depression40%
- Ischemic heart disease34%
- Arthritis32%
Hospitals where Iris Theodora C. Perez-Marquardt works
Medicare's Facility Affiliation Data lists Iris Theodora C. Perez-Marquardt 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.
- Bellin Health Oconto HospitalOconto, WI · Critical Access Hospital · Emergency services: listed by Medicare · CCN 521356
- Bellin Memorial HospitalGreen Bay, WI · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 520049
Practice locations
Addresses where Iris Theodora C. Perez-Marquardt is enrolled with Medicare (CMS data updated October 2, 2026).
- 100 E Highland DrOconto Falls, WI 54154 (920) 846‑3272
- 107 E Highland DrOconto Falls, WI 54154 (920) 846‑3092
- 218 S Hwy 141Crivitz, WI 54114 (715) 854‑7477
- 401 W Mill StBonduel, WI 54107 (715) 758‑2167
Group practices
Medicare enrollment lists Iris Theodora C. Perez-Marquardt as a member of these groups (CMS data updated October 2, 2026).
- Bellin Memorial Hospital Inc697 clinicians in the group
- Oconto Hospital and Medical Center Inc222 clinicians in the group
Specialties
- Family Practiceprimary
Other family doctors in Wisconsin
Clinicians with the same Medicare primary specialty in Wisconsin — not a recommendation.
Other clinicians in Bellin Memorial Hospital Inc
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1986 (40 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1306825872 |
| 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