Quick answers
- Where does Melissa A. Trimmer see patients?
- Medicare's clinician data lists 1 practice location in York, PA. Call before your visit to confirm the address.
- What is Melissa A. Trimmer's specialty?
- Medicare lists Certified Registered Nurse Anesthetist (CRNA) as the primary specialty.
- Does Melissa A. Trimmer accept Medicare assignment?
- Yes. Medicare's clinician data says Melissa A. Trimmer 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.
- What is the phone number for Melissa A. Trimmer?
- (717) 741-8250, as listed in official Medicare / NPI Registry data.
- What is Melissa A. Trimmer's NPI number?
- 1386935146. 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 Melissa A. Trimmer is enrolled with Medicare (CMS data updated 2026-10-02).
- 25 Monument Rd, Suite 270York, PA 17403 (717) 741‑8250
Group practices
Medicare enrollment lists Melissa A. Trimmer as a member of this group (CMS data updated 2026-10-02).
- WellSpan Medical Group2,480 clinicians in the group
Specialties
Find other clinicians: Certified Registered Nurse Anesthetist (CRNA), Pennsylvania →
Other nurse anesthetists in York
Clinicians with the same Medicare primary specialty in York, PA — not a recommendation.
Clinician information
| Credential | CNA |
|---|---|
| Graduation year | 2011 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1386935146 |
| 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