Quick answers
- Does Trina L. Greenwald accept Medicare assignment?
- Yes. Medicare's clinician data says Trina L. Greenwald 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 Trina L. Greenwald see?
- In 2024, CMS data shows 97 Original Medicare patients and 961 services for Trina L. Greenwald. This counts Original Medicare only and measures volume, not quality.
- What is Trina L. Greenwald's NPI number?
- 1548298409. 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 Trina L. Greenwald, 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 | 97 |
|---|---|
| Services billed to Medicare | 961 |
| Different services or procedures | 6 |
| Participating Medicare provider | Yes |
| Average age of these patients | 60 |
Most frequent services
- Assessment of emotional or behavioral problems (96127)575 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)296 services
- Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)57 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).
- Anxiety75%
- High blood pressure59%
- Depression57%
- High cholesterol55%
- Arthritis37%
- Diabetes34%
Hospitals where Trina L. Greenwald works
Medicare's Facility Affiliation Data lists Trina L. Greenwald 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.
- Marion General HospitalMarion, IN · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 150011
Practice locations
Addresses where Trina L. Greenwald is enrolled with Medicare (CMS data updated October 2, 2026).
- 515 N Bradner AveMarion, IN 46952
- 515 N Bradner Ave, Serenity ClinicMarion, IN 46952 (765) 664‑8000
Group practices
Medicare enrollment lists Trina L. Greenwald as a member of this group (CMS data updated October 2, 2026).
- Trina L. Greenwald LLC4 clinicians in the group
Specialties
- Nurse Practitionerprimary
Other nurse practitioners in Marion
Clinicians with the same Medicare primary specialty in Marion, IN — not a recommendation.
Other clinicians in Trina L. Greenwald LLC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | NP |
|---|---|
| Graduation year | 2006 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1548298409 |
| 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