Quick answers
- Does Amber Rentz accept Medicare assignment?
- Yes. Medicare's clinician data says Amber Rentz 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 Amber Rentz see?
- In 2024, CMS data shows 66 Original Medicare patients and 67 services for Amber Rentz. This counts Original Medicare only and measures volume, not quality.
- What is Amber Rentz's NPI number?
- 1528698560. 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 Amber Rentz, 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 | 66 |
|---|---|
| Services billed to Medicare | 67 |
| Different services or procedures | 28 |
| Participating Medicare provider | Yes |
| Average age of these patients | 72 |
Most frequent services
- Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope (00731)14 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 disease56%
- Diabetes50%
- Arthritis50%
- Anxiety47%
Hospitals where Amber Rentz works
Medicare's Facility Affiliation Data lists Amber Rentz 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.
- Henry Ford Macomb HospitalClinton Township, MI · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 230047
- McLaren MacombMount Clemens, MI · Acute Care Hospital · Medicare rating: 1 of 5 stars · Emergency services: listed by Medicare · CCN 230227
Practice locations
Addresses where Amber Rentz is enrolled with Medicare (CMS data updated October 2, 2026).
- 11012 E 13 Mile Rd, Suite 112aWarren, MI 48093 (586) 751‑9800
- 1221 Pine Grove AvePort Huron, MI 48060 (810) 987‑5000
- 15855 19 Mile RdClinton Township, MI 48038 (586) 263‑2300
- 22401 Foster Winter DrSouthfield, MI 48075 (248) 423‑5198
Group practices
Medicare enrollment lists Amber Rentz as a member of these groups (CMS data updated October 2, 2026).
- Henry Ford Macomb Hospital Corporation355 clinicians in the group
- Anesthesia Associates of Ann Arbor PLLC219 clinicians in the group
- Asa Staffing Inc145 clinicians in the group
Specialties
Find other clinicians: Certified Registered Nurse Anesthetist (CRNA), Michigan →
Other nurse anesthetists in Warren
Clinicians with the same Medicare primary specialty in Warren, MI — not a recommendation.
Other clinicians in Henry Ford Macomb Hospital Corporation
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Graduation year | 2019 |
|---|---|
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1528698560 |
| 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