Quick answers
- Does Deborah A. Guziatek Karwan accept Medicare assignment?
- Yes. Medicare's clinician data says Deborah A. Guziatek Karwan 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 Deborah A. Guziatek Karwan see?
- In 2024, CMS data shows 39 Original Medicare patients and 68 services for Deborah A. Guziatek Karwan. This counts Original Medicare only and measures volume, not quality.
- What is Deborah A. Guziatek Karwan's NPI number?
- 1811937360. 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 Deborah A. Guziatek Karwan, 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 | 39 |
|---|---|
| Services billed to Medicare | 68 |
| Different services or procedures | 4 |
| Participating Medicare provider | Yes |
| Average age of these patients | 70 |
Most frequent services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)61 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%
- Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)75%
- High cholesterol69%
- Diabetes56%
- Arthritis49%
- Ischemic heart disease36%
Hospitals where Deborah A. Guziatek Karwan works
Medicare's Facility Affiliation Data lists Deborah A. Guziatek Karwan 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.
- Karmanos Cancer CenterDetroit, MI · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: not listed by Medicare · CCN 230297
Practice locations
Addresses where Deborah A. Guziatek Karwan is enrolled with Medicare (CMS data updated October 2, 2026).
- 31995 Northwestern HwyFarmington Hills, MI 48334 (800) 527‑6266
- 4100 John R StDetroit, MI 48201 (800) 527‑6266
Group practices
Medicare enrollment lists Deborah A. Guziatek Karwan as a member of this group (CMS data updated October 2, 2026).
- Barbara Ann Karmanos Cancer Institute57 clinicians in the group
Specialties
- Nurse Practitionerprimary
Other nurse practitioners in Farmington Hills
Clinicians with the same Medicare primary specialty in Farmington Hills, MI — not a recommendation.
Other clinicians in Barbara Ann Karmanos Cancer Institute
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | NP |
|---|---|
| Graduation year | 1994 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1811937360 |
| 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