AARON Z GRABOVICH AA
NPI 1841524733
Anesthesiologist Assistant in Westerville, OH
About Aaron Z Grabovich Aa NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
AARON Z GRABOVICH AA (NPI 1841524733) is an individual anesthesiologist assistant in Westerville, Ohio, licensed in Ohio (67.000158) and active in the NPI registry since September 2009. He is affiliated with Mount Carmel St Ann's, maintains a secondary practice location in Columbus, and is a graduate of Other (2009).
NPPES Registry Identity
Specialties & Licenses
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
Aaron Z Grabovich Aa 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
3Medicare enrollment records show Aaron Grabovich reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Westerville, OH 43081
- Reassigned Medicare billing, Ohio enrollment
- 97 clinicians in this Medicare group
Columbus, OH 43210
- Reassigned Medicare billing, Ohio enrollment
- 551 clinicians in this Medicare group
Montgomery, OH 45242
- Reassigned Medicare billing, Ohio enrollment
- 402 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
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 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Mount Carmel St Ann's
Acute Care Hospitals · Westerville, OHMount Carmel New Albany Surgical Hospital
Acute Care Hospitals · New Albany, OHOther Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
WESTERVILLE, OH 43081
WESTERVILLE, OH 43081
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 Aaron Grabovich's NPI number?
The NPI number for Aaron Grabovich is 1841524733. It was assigned to this individual provider in the NPPES registry on September 24, 2009.
Where is Aaron Grabovich located?
Aaron Grabovich practices at 500 S Cleveland Ave, Westerville, OH 43081. The listed phone number is (614) 898-6659.
What is Aaron Grabovich's specialty?
The primary specialty registered for this NPI is Anesthesiologist Assistant with taxonomy code 367H00000X.
Is Aaron Grabovich enrolled in Medicare?
Yes. Aaron Grabovich 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 Aaron Grabovich's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Aaron Grabovich reassigns Medicare benefits to 3 organizations: Consultant Anesthesiologists Inc (Westerville, OH), Osu Observation Medicine, LLC (Columbus, OH) and Anesthesia Group Practice, Inc (Montgomery, OH). 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 Aaron Grabovich's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Aaron Grabovich accept?
Health plans from CareSource list Aaron Grabovich 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 Aaron Grabovich affiliated with any hospitals?
According to CMS data, Aaron Grabovich is affiliated with Mount Carmel St Ann's and Mount Carmel New Albany Surgical Hospital.
When was this NPI record last updated?
The NPPES record for Aaron Grabovich was last updated on April 2, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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.
# Aaron Z Grabovich, AA · NPI 1841524733
Anesthesiologist Assistant physician in Westerville, Ohio. Individual provider, active in the CMS NPPES registry since September 24, 2009.
## Identity
- **NPI:** 1841524733 (Entity type: Individual)
- **Enumerated:** September 24, 2009
- **Primary specialty:** Anesthesiologist Assistant · taxonomy 367H00000X
- **State license:** 67.000158 (Ohio)
- **Sole proprietor:** No
## Practice location
- **Address:** 500 S CLEVELAND AVE, Westerville, OH 43081-8971
- **Phone:** (614) 898-6659 · **Fax:** (614) 898-8631
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Bills Medicare through:** 3 organizations under Medicare reassignment (form CMS-855R): Consultant Anesthesiologists Inc (NPI 1457420580, Westerville, OH); Osu Observation Medicine, LLC (NPI 1407095052, Columbus, OH); Anesthesia Group Practice, Inc (NPI 1417951948, Montgomery, OH) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2009
## Record status
- **NPPES last updated:** April 2, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1841524733) · Data from the CMS NPPES public registry.