Quick answers
- Does Kelsey M. Lemmen accept Medicare assignment?
- Yes. Medicare's clinician data says Kelsey M. Lemmen 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 Kelsey M. Lemmen see?
- In 2024, CMS data shows 119 Original Medicare patients and 164 services for Kelsey M. Lemmen. This counts Original Medicare only and measures volume, not quality.
- What is Kelsey M. Lemmen's NPI number?
- 1124689120. 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 Kelsey M. Lemmen, 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 | 119 |
|---|---|
| Services billed to Medicare | 164 |
| Different services or procedures | 15 |
| Participating Medicare provider | Yes |
| Average age of these patients | 75 |
Most frequent services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)47 services
- Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)43 services
- Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)36 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)11 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 pressure68%
- High cholesterol65%
- Arthritis44%
- Ischemic heart disease37%
- Diabetes27%
- Atrial fibrillation21%
Practice locations
Addresses where Kelsey M. Lemmen is enrolled with Medicare (CMS data updated October 2, 2026).
- 22101 Moross RdDetroit, MI 48236
- 22151 Moross Rd, Suite 134Detroit, MI 48236 (313) 343‑4850
- 3031 W Grand BlvdDetroit, MI 48202 (313) 916‑2600
- 6777 W Maple RdWest Bloomfield, MI 48322 (248) 661‑4100
Group practices
Medicare enrollment lists Kelsey M. Lemmen as a member of these groups (CMS data updated October 2, 2026).
- Henry Ford Health System2,570 clinicians in the group
- Henry Ford Health St. John Hospital348 clinicians in the group
Specialties
- Rheumatologyprimary
- Internal Medicinealso
Other rheumatologists in Detroit
Clinicians with the same Medicare primary specialty in Detroit, MI — not a recommendation.
Other clinicians in Henry Ford Health System
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Michigan Medical School |
| Graduation year | 2019 (7 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1124689120 |
| 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
- 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