Quick answers
- Does Kelly Z. Ortwine accept Medicare assignment?
- Yes. Medicare's clinician data says Kelly Z. Ortwine 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 Kelly Z. Ortwine see?
- In 2024, CMS data shows 333 Original Medicare patients and 3,516 services for Kelly Z. Ortwine. This counts Original Medicare only and measures volume, not quality.
- What is Kelly Z. Ortwine's NPI number?
- 1598747941. 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 Kelly Z. Ortwine, 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 | 333 |
|---|---|
| Services billed to Medicare | 3,516 |
| Different services or procedures | 73 |
| Participating Medicare provider | Yes |
| Average age of these patients | 74 |
Most frequent services
- Insertion of needle into vein for collection of blood sample (36415)319 services
- Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's (G2211)289 services
- Blood test, comprehensive group of blood chemicals (80053)250 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)238 services
- Blood test, lipids (cholesterol and triglycerides) (80061)218 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 pressure65%
- Arthritis39%
- Ischemic heart disease20%
- Diabetes19%
- Anxiety19%
Hospitals where Kelly Z. Ortwine works
Medicare's Facility Affiliation Data lists Kelly Z. Ortwine 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.
- Ascension Providence Rochester HospitalRochester, MI · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 230254
- Beaumont Hospital - Grosse PointeGrosse Pointe, MI · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 230089
- 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 Kelly Z. Ortwine is enrolled with Medicare (CMS data updated October 2, 2026).
- 1701 S Blvd ERochester Hills, MI 48307
- 3150 Livernois Rd, Suite 320Troy, MI 48083 (248) 385‑0800
- 4600 Investment DrTroy, MI 48098
Group practices
Medicare enrollment lists Kelly Z. Ortwine as a member of this group (CMS data updated October 2, 2026).
- Arcturus Healthcare PLC63 clinicians in the group
Specialties
- Family Practiceprimary
Other family doctors in Rochester Hills
Clinicians with the same Medicare primary specialty in Rochester Hills, MI — not a recommendation.
Other clinicians in Arcturus Healthcare PLC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Wayne State University School Of Medicine |
| Graduation year | 1997 (29 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1598747941 |
| 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