Quick answers
- Does Anne M. Tessmer accept Medicare assignment?
- Yes. Medicare's clinician data says Anne M. Tessmer 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 Anne M. Tessmer see?
- In 2024, CMS data shows 290 Original Medicare patients and 489 services for Anne M. Tessmer. This counts Original Medicare only and measures volume, not quality.
- What is Anne M. Tessmer's NPI number?
- 1558378570. 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 Anne M. Tessmer, 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 | 290 |
|---|---|
| Services billed to Medicare | 489 |
| Different services or procedures | 10 |
| Participating Medicare provider | Yes |
| Average age of these patients | 78 |
Most frequent services
- Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes (99309)242 services
- Psychiatric diagnostic evaluation with medical services (90792)160 services
- Subsequent nursing facility care with high level of medical decision making, per day, if using time, at least 45 minutes (99310)45 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%
- Depression73%
- Anxiety71%
- Alzheimer's disease or dementia64%
- Arthritis63%
Practice locations
Addresses where Anne M. Tessmer is enrolled with Medicare (CMS data updated October 2, 2026).
- 1000 W University Dr, Suite 302Rochester Hills, MI 48307 (248) 469‑9760
- 1455 S Lapeer Rd, Suite 175Lake Orion, MI 48360 (248) 322‑0001
- 888 W Big Beaver Rd, Suite 1450Troy, MI 48084 (248) 244‑8644
Group practices
Medicare enrollment lists Anne M. Tessmer as a member of this group (CMS data updated October 2, 2026).
- Optum Behavioral Care of Colorado PC197 clinicians in the group
Specialties
- Physician Assistantprimary
Other physician assistants in Rochester Hills
Clinicians with the same Medicare primary specialty in Rochester Hills, MI — not a recommendation.
Other clinicians in Optum Behavioral Care of Colorado PC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | PA |
|---|---|
| School | Wayne State University School Of Medicine |
| Graduation year | 1999 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1558378570 |
| 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