Quick answers
- Where does Dennis Marien see patients?
- Medicare's clinician data lists 1 practice location in Grand Blanc, MI. Call before your visit to confirm the address.
- What is Dennis Marien's specialty?
- Medicare lists Physician Assistant as the primary specialty.
- Does Dennis Marien accept Medicare assignment?
- Yes. Medicare's clinician data says Dennis Marien 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.
- Does Dennis Marien offer telehealth?
- Medicare's clinician data says Dennis Marien offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Dennis Marien?
- (810) 428-1181, as listed in official Medicare / NPI Registry data.
- What is Dennis Marien's NPI number?
- 1710029079. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Practice locations
Addresses where Dennis Marien is enrolled with Medicare (CMS data updated 2026-10-02).
- 10761 S Saginaw St, Suite DGrand Blanc, MI 48439 (810) 428‑1181
Group practices
Medicare enrollment lists Dennis Marien as a member of this group (CMS data updated 2026-10-02).
- Cognosis Health Hillside15 clinicians in the group
Specialties
- Physician Assistantprimary
Other physician assistants in Grand Blanc
Clinicians with the same Medicare primary specialty in Grand Blanc, MI — not a recommendation.
Clinician information
| Credential | PA |
|---|---|
| Graduation year | 2006 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1710029079 |
| 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 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