Quick answers
- Does Marissa L. Brosmer accept Medicare assignment?
- Yes. Medicare's clinician data says Marissa L. Brosmer 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 Marissa L. Brosmer see?
- In 2024, CMS data shows 383 Original Medicare patients and 1,191 services for Marissa L. Brosmer. This counts Original Medicare only and measures volume, not quality.
- What is Marissa L. Brosmer's NPI number?
- 1497303572. 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 Marissa L. Brosmer, 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 | 383 |
|---|---|
| Services billed to Medicare | 1,191 |
| Different services or procedures | 22 |
| Participating Medicare provider | Yes |
| Average age of these patients | 76 |
Most frequent services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)525 services
- Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's (G2211)443 services
- Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report (93000)91 services
- Exercise or drug-induced heart stress test with electrocardiogram (ecg) with supervision by physician (93016)34 services
- Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)21 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%
- Ischemic heart disease55%
- Arthritis49%
- Atrial fibrillation46%
- Diabetes36%
Hospitals where Marissa L. Brosmer works
Medicare's Facility Affiliation Data lists Marissa L. Brosmer 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.
- Daviess Community HospitalWashington, IN · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 150061
- Deaconess Hospital IncEvansville, IN · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 150082
- Good Samaritan HospitalVincennes, IN · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 150042
- Memorial Hospital and Health Care CenterJasper, IN · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 150115
Practice locations
Addresses where Marissa L. Brosmer is enrolled with Medicare (CMS data updated October 2, 2026). The first 5 of 8; the Medicare profile lists all.
- 303 N Meridian St, Holland Family MedicineHolland, IN 47541 (812) 536‑3943
- 440 Scott Rolen DrJasper, IN 47546 (812) 482‑5656
- 5066 N 900, Coutry Health CenterMontgomery, IN 47558 (812) 486‑3396
- 600 S State Rd, 57 Suite BWashington, IN 47501 (812) 674‑4040
- 600 S State Rd 57 A, Memorial Health WashingtonWashington, IN 47501 (812) 257‑1052
Group practices
Medicare enrollment lists Marissa L. Brosmer as a member of these groups (CMS data updated October 2, 2026).
- Deaconess Specialty Physicians, Inc229 clinicians in the group
- Deaconess Memorial Medical Center Inc144 clinicians in the group
Specialties
- Nurse Practitionerprimary
Other nurse practitioners in Holland
Clinicians with the same Medicare primary specialty in Holland, IN — not a recommendation.
Other clinicians in Deaconess Specialty Physicians, Inc
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | NP |
|---|---|
| Graduation year | 2019 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1497303572 |
| 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