DEAN JOHN ROSIAR II
NPI 1417424094
Nurse Anesthetist, Certified Registered in Sandusky, OH
About Dean John Rosiar Ii NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DEAN JOHN ROSIAR II (NPI 1417424094) is an individual nurse anesthetist, certified registered in Sandusky, Ohio, licensed in Ohio (APRN.CRNA.019846) and active in the NPI registry since October 2018. He is affiliated with Firelands Regional Medical Center and is a graduate of Clvlnd Clinic Lerner College Of Med Of Case Wstn Rsv University (2018).
NPPES Registry Identity
Specialties & Licenses
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
Dean John Rosiar Ii 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 Reassignments
6Medicare enrollment records show Dean Rosiar reassigns Medicare billing to 6 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Sandusky, OH 44870
- Reassigned Medicare billing, Ohio enrollment
- 16 clinicians in this Medicare group
Willard, OH 44890
- Reassigned Medicare billing, Ohio enrollment
- 30 clinicians in this Medicare group
Toledo, OH 43623
- Reassigned Medicare billing, Ohio enrollment
- 31 clinicians in this Medicare group
Canton, OH 44708
- Reassigned Medicare billing, Ohio enrollment
- 554 clinicians in this Medicare group
Circleville, OH 43113
- Reassigned Medicare billing, Ohio enrollment
- 365 clinicians in this Medicare group
Pensacola, FL 32502
- Reassigned Medicare billing, Ohio enrollment
- 72 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.
Firelands Regional Medical Center
Acute Care Hospitals · Sandusky, OHPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 44870 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
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.
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 Dean Rosiar's NPI number?
The NPI number for Dean Rosiar is 1417424094. It was assigned to this individual provider in the NPPES registry on October 31, 2018.
Where is Dean Rosiar located?
Dean Rosiar practices at 1111 Hayes Ave, Sandusky, OH 44870. The listed phone number is (419) 341-1860.
What is Dean Rosiar's specialty?
The primary specialty registered for this NPI is Nurse Anesthetist, Certified Registered with taxonomy code 367500000X.
Is Dean Rosiar enrolled in Medicare?
Yes. Dean Rosiar 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 organizations bill Medicare for Dean Rosiar's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Dean Rosiar reassigns Medicare benefits to 6 organizations: Northern Ohio Anesthesia Services, LLC (Sandusky, OH), Firelands Anesthesia Associates, Inc (Willard, OH), Amsurg Toledo Anesthesia LLC (Toledo, OH), Ohio Anesthesia Group, Inc (Canton, OH), Sandusky Anesthesia LLC (Circleville, OH) and 1 more organization, listed in the Medicare section above. Each 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 Dean Rosiar's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Dean Rosiar accept?
Health plans from CareSource and Paramount list Dean Rosiar 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 Dean Rosiar affiliated with any hospitals?
According to CMS data, Dean Rosiar is affiliated with Firelands Regional Medical Center.
When was this NPI record last updated?
The NPPES record for Dean Rosiar was last updated on June 18, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.
# Dean John Rosiar II · NPI 1417424094
Nurse Anesthetist, Certified Registered physician in Sandusky, Ohio. Individual provider, active in the CMS NPPES registry since October 31, 2018.
## Identity
- **NPI:** 1417424094 (Entity type: Individual)
- **Enumerated:** October 31, 2018
- **Primary specialty:** Nurse Anesthetist, Certified Registered · taxonomy 367500000X
- **State license:** APRN.CRNA.019846 (Ohio)
- **Sole proprietor:** No
## Practice location
- **Address:** 1111 HAYES AVE, Sandusky, OH 44870-3323
- **Phone:** (419) 341-1860
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Bills Medicare through:** 6 organizations under Medicare reassignment (form CMS-855R): Northern Ohio Anesthesia Services, LLC (NPI 1265675847, Sandusky, OH); Firelands Anesthesia Associates, Inc (NPI 1811906340, Willard, OH); Amsurg Toledo Anesthesia LLC (NPI 1053686071, Toledo, OH); Ohio Anesthesia Group, Inc (NPI 1639348113, Canton, OH); Sandusky Anesthesia LLC (NPI 1770907859, Circleville, OH); and 1 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Clvlnd Clinic Lerner College Of Med Of Case Wstn Rsv University, class of 2018
## Record status
- **NPPES last updated:** June 18, 2022
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Source: [NPI Profile](https://npiprofile.com/npi/1417424094) · Data from the CMS NPPES public registry.