THOMAS MERVA CRNA
NPI 1831769843
Nurse Anesthetist, Certified Registered in Lima, OH
About Thomas Merva Crna NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
THOMAS MERVA CRNA (NPI 1831769843) is an individual nurse anesthetist, certified registered in Lima, Ohio, licensed in Ohio (APRN.CRNA.0020754) and active in the NPI registry since June 2021. He is affiliated with Lima Memorial Health System, maintains a secondary practice location in Youngstown, and is a graduate of Other (2022).
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Location 1
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Thomas Merva Crna is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignment
Medicare enrollment records show Thomas Merva reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Lima, OH 45804
- Reassigned Medicare billing, Ohio enrollment
- 228 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 5
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Lima Memorial Health System
Acute Care Hospitals · Lima, OHPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 45804 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
LIMA, OH 45804
LIMA, OH 45804
LIMA, OH 45804
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Thomas Merva's NPI number?
The NPI number for Thomas Merva is 1831769843. It was assigned to this individual provider in the NPPES registry on June 30, 2021.
Where is Thomas Merva located?
Thomas Merva practices at 1001 Bellefontaine Ave, Lima, OH 45804. The listed phone number is (419) 226-5018.
What is Thomas Merva's specialty?
The primary specialty registered for this NPI is Nurse Anesthetist, Certified Registered with taxonomy code 367500000X.
Is Thomas Merva enrolled in Medicare?
Yes. Thomas Merva is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organization bills Medicare for Thomas Merva's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Thomas Merva reassigns Medicare benefits to Lima Memorial Professional Corporation (Lima, OH). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Thomas Merva's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Thomas Merva accept?
Health plans from CareSource list Thomas Merva as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
Is Thomas Merva affiliated with any hospitals?
According to CMS data, Thomas Merva is affiliated with Lima Memorial Health System.
When was this NPI record last updated?
The NPPES record for Thomas Merva was last updated on March 3, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.