Quick answers
- Which hospitals does Maria A. Thelen work at?
- Medicare's official clinician data lists Maria A. Thelen at 3 hospitals: Edward W Sparrow Hospital, McLaren Greater Lansing and University of Michigan Health- Sparrow Clinton. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Maria A. Thelen see patients?
- Medicare's clinician data lists 2 practice locations, including Grand Ledge, MI. Call before your visit to confirm the address.
- What is Maria A. Thelen's specialty?
- Medicare lists Physician Assistant as the primary specialty.
- Does Maria A. Thelen accept Medicare assignment?
- Yes. Medicare's clinician data says Maria A. Thelen accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
- What is the phone number for Maria A. Thelen?
- (517) 627-2181, as listed in official Medicare / NPI Registry data.
- What is Maria A. Thelen's NPI number?
- 1639115165. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Maria A. Thelen works
Medicare's Facility Affiliation Data lists Maria A. Thelen at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Edward W Sparrow HospitalLansing, MI · Acute Care Hospital · CCN 230230
- McLaren Greater LansingLansing, MI · Acute Care Hospital · CCN 230167
- University of Michigan Health- Sparrow ClintonSaint Johns, MI · Critical Access Hospital · CCN 231326
Practice locations
Addresses where Maria A. Thelen is enrolled with Medicare (CMS data updated 2026-10-02).
- 1035 Charlevoix DrGrand Ledge, MI 48837
- 1035 Charlevoix Dr, Suite 100Grand Ledge, MI 48837 (517) 627‑2181
Group practices
Medicare enrollment lists Maria A. Thelen as a member of this group (CMS data updated 2026-10-02).
- David J. Smith MD PC12 clinicians in the group
Specialties
- Physician Assistantprimary
Other physician assistants in Grand Ledge
Clinicians with the same Medicare primary specialty in Grand Ledge, MI — not a recommendation.
Clinician information
| Credential | PA |
|---|---|
| Graduation year | 2004 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1639115165 |
| 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 2026-10-02, retrieved 2026-10-29
- National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
- 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