Melissa Ann Trimmer, CRNA
Certified Registered Nurse Anesthetist (Crna) (CMS) · York, PA
At a glance
25 Monument Rd Ste 270, York, PA 17403-5073
NPPES record updated Feb 10, 2025. Public records can lag behind changes at a practice.
Before you call: a quick checklist
- Are you accepting new patients?
- Do you accept my specific insurance plan?
- Do you provide the service I need at this address?
- Do I need a referral, and what is the earliest appointment?
Insurance participation and appointment availability are not established by these public records.
Medicare & insurance
Insurance participation is not established by these public records. Ask the practice and your insurer about your specific plan and this location.
How to check your coverage
Use your plan’s provider directory or the member-services number on your insurance card. Confirm the clinician, practice address, service, and whether a referral is required. A missing opt-out record does not establish Medicare acceptance.
Check the official Medicare directory ↗Practice location
25 Monument Rd Ste 270York, PA 17403-5073
Additional reported practice locations
1001 S George StYork, PA 174033676
Phone: 7178512345
Fax: 7177415336 361 Alexander Spring Rd
Carlisle, PA 170156940
Phone: 7177823282
Fax: 7172318964 169 Martin Ave
Ephrata, PA 175221734
Phone: 7177330311 12 St Paul Dr Ste 100
Chambersburg, PA 172011035
Phone: 7172176072 112 N 7Th St
Chambersburg, PA 172011720
Phone: 7172677164 55 Monument Rd
York, PA 174035023
Phone: 7178126425 147 Gettys St
Gettysburg, PA 173252534
Phone: 7173374168 501 E Main St
Waynesboro, PA 172682353
Phone: 7177653425 252 S 4Th St
Lebanon, PA 170426111
Phone: 7172707500 236 West St
Gettysburg, PA 173252509
Phone: 7173384500 1227 Baltimore St
Hanover, PA 173314406
Phone: 7176464204 55 Monument Rd
York, PA 174035023
Phone: 7178126425
Education & affiliations
- Medical / professional school
- Not reported in this file
- Graduation year
- 2011
- CMS specialties
- Certified Registered Nurse Anesthetist (Crna)
Practice groups
Graduation year does not establish years in practice. A reported affiliation does not establish employment, current admitting privileges, or insurance participation.
Source: CMS National Downloadable File · Published Oct 15, 2026.
Procedures in the public data
Reported activity can help you ask more informed questions about a practice’s services.
No displayed procedure-category record in this release. This does not mean the clinician performs no procedures.
CMS uses a one-year claims window with a reporting lag. Counts cover the Medicare activity included by CMS, not all patients. “1–10” is a published range. Volume is not a quality or outcomes score. Coverage and methodology
Source: CMS Utilization Data · Published Oct 15, 2026.
Find providers with a similar service mix
Compare 2024 published Medicare activity in the same reported specialty, here or in another city.
Industry-reported general payments
No matching general-payment summary in the imported release. This is not a verified zero and does not rule out other payment types or years.
Source: CMS 2025 payments grouped by covered recipient and nature of payments · Published Jun 30, 2026.
Professional details: NPI, taxonomy & registry record
Registry details
- Primary taxonomy
- Certified Registered Nurse Anesthetist (Crna) (CMS)
- Taxonomy code
- 367500000X
- Enumeration date
- Apr 28, 2011
- Record updated
- Feb 10, 2025
More registry details
- Provider type
- Individual · Type 1
- Reported credentials
- CRNA
Reported taxonomies and licenses
367500000X · Primary
License reported: RN545505 PA
License numbers and credentials are reported to NPPES; HCPList does not independently verify them.
Practice location
25 Monument Rd Ste 270York, PA 17403-5073
- Phone
- (717) 741-8250
Mailing address
601 MEMORY LNYORK, PA 174022231
Information may be outdated or incomplete. Confirm details directly with the practice. HCPList is an independent directory and is not affiliated with CMS.
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