Quick answers
- Does Sarah L. Arnkoff accept Medicare assignment?
- Yes. Medicare's clinician data says Sarah L. Arnkoff 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 Sarah L. Arnkoff see?
- In 2024, CMS data shows 680 Original Medicare patients and 13,967 services for Sarah L. Arnkoff. This counts Original Medicare only and measures volume, not quality.
- What is Sarah L. Arnkoff's NPI number?
- 1851883516. 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 Sarah L. Arnkoff, 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 | 680 |
|---|---|
| Services billed to Medicare | 13,967 |
| Different services or procedures | 39 |
| Participating Medicare provider | Yes |
| Average age of these patients | 77 |
Most frequent services
- Injection, denosumab, 1 mg (J0897)5,880 services
- Bcg live intravesical instillation, 1 mg (J9030)4,650 services
- Automated urinalysis test (81003)571 services
- Ultrasound measurement of bladder capacity after voiding (51798)296 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)279 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%
- Arthritis52%
- Ischemic heart disease37%
- Diabetes33%
- Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)31%
Hospitals where Sarah L. Arnkoff works
Medicare's Facility Affiliation Data lists Sarah L. Arnkoff 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.
- Beaumont Hospital - Farmington HillsFarmington Hills, MI · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 230151
- Beaumont Hospital Royal OakRoyal Oak, MI · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 230130
- Beaumont Hospital, TroyTroy, MI · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 230269
Practice locations
Addresses where Sarah L. Arnkoff is enrolled with Medicare (CMS data updated October 2, 2026).
- 130 Town Ctr DrTroy, MI 48084
- 20952 E 12 Mile Rd, Suite 200Saint Clair Shores, MI 48081 (586) 771‑4820
Group practices
Medicare enrollment lists Sarah L. Arnkoff as a member of this group (CMS data updated October 2, 2026).
- Alliance Physician Services of Michigan, P.C.82 clinicians in the group
Specialties
- Nurse Practitionerprimary
Other nurse practitioners in Troy
Clinicians with the same Medicare primary specialty in Troy, MI — not a recommendation.
Other clinicians in Alliance Physician Services of Michigan, P.C.
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | NP |
|---|---|
| Graduation year | 2017 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1851883516 |
| 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