MARY VAUGHN GREATHOUSE CRNA
NPI 1942240643
Nurse Anesthetist, Certified Registered in Columbus, OH
About Mary Vaughn Greathouse Crna NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MARY VAUGHN GREATHOUSE CRNA (NPI 1942240643) is an individual nurse anesthetist, certified registered in Columbus, Ohio, licensed in Ohio (APRN.CRNA.08510) and active in the NPI registry since June 2006. She is affiliated with Avita Ontario, maintains 2 additional practice locations, and is a graduate of Other (2021).
NPPES Registry Identity
Specialties & Licenses
Other Names 1
Secondary Practice Locations 2
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
Mary Vaughn Greathouse 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 Reassignments
14Medicare enrollment records show Mary Vaughn Greathouse reassigns Medicare billing to 14 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Columbus, OH 43210
- Reassigned Medicare billing, Ohio enrollment
- 551 clinicians in this Medicare group
Circleville, OH 43113
- Reassigned Medicare billing, Ohio enrollment
- 365 clinicians in this Medicare group
Marion, OH 43302
- Reassigned Medicare billing, Ohio enrollment
- 423 clinicians in this Medicare group
Galion, OH 44833
- Reassigned Medicare billing, Ohio enrollment
- 252 clinicians in this Medicare group
Galion, OH 44833
- Reassigned Medicare billing, Ohio enrollment
- 25 clinicians in this Medicare group
Bucyrus, OH 44820
- Reassigned Medicare billing, Ohio enrollment
- 25 clinicians in this Medicare group
Ada, OH 45810
- Reassigned Medicare billing, Ohio enrollment
- 228 clinicians in this Medicare group
Portsmouth, OH 45662
- Reassigned Medicare billing, Ohio enrollment
- 549 clinicians in this Medicare group
Batavia, OH 45103
- Reassigned Medicare billing, Ohio enrollment
- Medicare enrollment name: Southwest Ohio Anesthesia Consultants LLC
- 830 clinicians in this Medicare group
Parkersburg, WV 26101
- Reassigned Medicare billing, West Virginia enrollment
- 461 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 3
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Avita Ontario
Acute Care Hospitals · Ontario, OHBucyrus Community Hospital
Critical Access Hospitals · Bucyrus, OHCamden Clark Medical Center
Acute Care Hospitals · Parkersburg, WVPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 43210 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 Mary Vaughn Greathouse's NPI number?
The NPI number for Mary Vaughn Greathouse is 1942240643. It was assigned to this individual provider in the NPPES registry on June 8, 2006. The provider is also known as Mary C Vaughn Thomas Crna.
Where is Mary Vaughn Greathouse located?
Mary Vaughn Greathouse practices at 520 W 10th Ave, Columbus, OH 43210. The listed phone number is (614) 293-8487.
What is Mary Vaughn Greathouse's specialty?
The primary specialty registered for this NPI is Nurse Anesthetist, Certified Registered with taxonomy code 367500000X.
Is Mary Vaughn Greathouse enrolled in Medicare?
Yes. Mary Vaughn Greathouse 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 Mary Vaughn Greathouse's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Mary Vaughn Greathouse reassigns Medicare benefits to 14 organizations: Osu Observation Medicine, LLC (Columbus, OH), Sandusky Anesthesia LLC (Circleville, OH), Marion Area Physicians LLC (Marion, OH), North Central Ohio Family Care Center, Inc (Galion, OH), Galion Community Hospital (Galion, OH) and 9 more organizations, 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 Mary Vaughn Greathouse's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Mary Vaughn Greathouse accept?
Health plans from CareSource, Oscar Insurance Corporation of Ohio and Paramount list Mary Vaughn Greathouse 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 Mary Vaughn Greathouse affiliated with any hospitals?
According to CMS data, Mary Vaughn Greathouse is affiliated with Avita Ontario, Bucyrus Community Hospital and Camden Clark Medical Center.
When was this NPI record last updated?
The NPPES record for Mary Vaughn Greathouse was last updated on July 22, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 months 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.
# Mary Vaughn Greathouse, CRNA · NPI 1942240643
Nurse Anesthetist, Certified Registered physician in Columbus, Ohio. Individual provider, active in the CMS NPPES registry since June 8, 2006.
## Identity
- **NPI:** 1942240643 (Entity type: Individual)
- **Enumerated:** June 8, 2006
- **Primary specialty:** Nurse Anesthetist, Certified Registered · taxonomy 367500000X
- **State license:** APRN.CRNA.08510 (Ohio)
- **Sole proprietor:** No
## Practice location
- **Address:** 520 W 10TH AVE, Columbus, OH 43210-1328
- **Phone:** (614) 293-8487 · **Fax:** (614) 293-8153
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Bills Medicare through:** 14 organizations under Medicare reassignment (form CMS-855R): Osu Observation Medicine, LLC (NPI 1407095052, Columbus, OH); Sandusky Anesthesia LLC (NPI 1770907859, Circleville, OH); Marion Area Physicians LLC (NPI 1619230802, Marion, OH); North Central Ohio Family Care Center, Inc (NPI 1689822827, Galion, OH); Galion Community Hospital (NPI 1215907522, Galion, OH); and 9 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2021
## Record status
- **NPPES last updated:** July 22, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1942240643) · Data from the CMS NPPES public registry.