Quick answers
- Does Shannon N. Martin accept Medicare assignment?
- Yes. Medicare's clinician data says Shannon N. Martin 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 Shannon N. Martin see?
- In 2024, CMS data shows 568 Original Medicare patients and 2,548 services for Shannon N. Martin. This counts Original Medicare only and measures volume, not quality.
- What is Shannon N. Martin's NPI number?
- 1982818597. 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 Shannon N. Martin, 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 | 568 |
|---|---|
| Services billed to Medicare | 2,548 |
| Different services or procedures | 40 |
| 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)369 services
- Photography of the retina (92250)343 services
- Chronic care management services, first 20 minutes of clinical staff time directed by health care professional, per calendar month (99490)266 services
- Established patient complete exam of visual system (92014)243 services
- Exam of visual field with extended testing (92083)183 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%
- Arthritis49%
- Diabetes30%
- Anxiety27%
- Ischemic heart disease23%
Hospitals where Shannon N. Martin works
Medicare's Facility Affiliation Data lists Shannon N. Martin at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.
- Oaklawn HospitalMarshall, MI · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 230217
Practice locations
Addresses where Shannon N. Martin is enrolled with Medicare (CMS data updated October 2, 2026).
- 215 E Mansion St, Suite 2bMarshall, MI 49068 (269) 781‑4018
Specialties
- Ophthalmologyprimary
Other ophthalmologists in Michigan
Clinicians with the same Medicare primary specialty in Michigan — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Rush Medical College Of Rush University |
| Graduation year | 2006 (20 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1982818597 |
| 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 October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- 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