Quick answers
- Does Tonya M. Marlin accept Medicare assignment?
- Yes. Medicare's clinician data says Tonya M. Marlin 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 Tonya M. Marlin see?
- In 2024, CMS data shows 46 Original Medicare patients and 93 services for Tonya M. Marlin. This counts Original Medicare only and measures volume, not quality.
- What is Tonya M. Marlin's NPI number?
- 1538942453. 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 Tonya M. Marlin, 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 | 46 |
|---|---|
| Services billed to Medicare | 93 |
| Different services or procedures | 15 |
| Participating Medicare provider | Yes |
| Average age of these patients | 70 |
Most frequent services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)40 services
- New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)12 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 pressure67%
- High cholesterol59%
- Arthritis48%
- Diabetes37%
- Anxiety26%
- COPD24%
Practice locations
Addresses where Tonya M. Marlin is enrolled with Medicare (CMS data updated October 2, 2026).
- 147 N Almont AveImlay City, MI 48444 (626) 437‑3372
- 2700 Pointe Tremble RdAlgonac, MI 48001 (810) 662‑2827
- 3941 24th AveFort Gratiot, MI 48059 (810) 882‑9373
Group practices
Medicare enrollment lists Tonya M. Marlin as a member of these groups (CMS data updated October 2, 2026).
- Blue Water Urgent Care PLLC24 clinicians in the group
- Total Urgent Care PLLC2 clinicians in the group
Specialties
- Nurse Practitionerprimary
Other nurse practitioners in Michigan
Clinicians with the same Medicare primary specialty in Michigan — not a recommendation.
Other clinicians in Blue Water Urgent Care PLLC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | NP |
|---|---|
| Graduation year | 2023 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1538942453 |
| 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