MR. GREGORY J RIVENBARK CAA
NPI 1164089306
Anesthesiologist Assistant in Painesville, OH
About Mr. Gregory J Rivenbark Caa NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MR. GREGORY J RIVENBARK CAA (NPI 1164089306) is an individual anesthesiologist assistant in Painesville, Ohio, licensed in Ohio (67000350) and active in the NPI registry since May 2019. He is affiliated with Lake Health, maintains a secondary practice location in Painesville, and is a graduate of Clvlnd Clinic Lerner College Of Med Of Case Wstn Rsv University (2019).
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
Mr. Gregory J Rivenbark Caa 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 Gregory Rivenbark reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Concord Twp, OH 44077
- Reassigned Medicare billing, Ohio enrollment
- 1,437 clinicians in this Medicare group
Cleveland, OH 44106
- Reassigned Medicare billing, Ohio enrollment
- 3,958 clinicians in this Medicare group
Canton, OH 44708
- Reassigned Medicare billing, Ohio enrollment
- 554 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
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Lake Health
Acute Care Hospitals · Concord, OHMedicare 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 5
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
PAINESVILLE, OH 44077
PAINESVILLE, OH 44077
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 Gregory Rivenbark's NPI number?
The NPI number for Gregory Rivenbark is 1164089306. It was assigned to this individual provider in the NPPES registry on May 23, 2019.
Where is Gregory Rivenbark located?
Gregory Rivenbark practices at 7757 Auburn Rd Ste 15, Painesville, OH 44077. The listed phone number is (440) 350-0832.
What is Gregory Rivenbark's specialty?
The primary specialty registered for this NPI is Anesthesiologist Assistant with taxonomy code 367H00000X.
Is Gregory Rivenbark enrolled in Medicare?
Yes. Gregory Rivenbark 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 Gregory Rivenbark's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Gregory Rivenbark reassigns Medicare benefits to 3 organizations: University Primary Care Practices Inc (Concord Twp, OH), University Hospitals Medical Group Inc (Cleveland, OH) and Ohio Anesthesia Group, Inc (Canton, 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 Gregory Rivenbark's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Gregory Rivenbark accept?
Health plans from CareSource and Paramount list Gregory Rivenbark 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 Gregory Rivenbark affiliated with any hospitals?
According to CMS data, Gregory Rivenbark is affiliated with Lake Health.
When was this NPI record last updated?
The NPPES record for Gregory Rivenbark was last updated on April 8, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.
# Mr. Gregory J Rivenbark, CAA · NPI 1164089306
Anesthesiologist Assistant physician in Painesville, Ohio. Individual provider, active in the CMS NPPES registry since May 23, 2019.
## Identity
- **NPI:** 1164089306 (Entity type: Individual)
- **Enumerated:** May 23, 2019
- **Primary specialty:** Anesthesiologist Assistant · taxonomy 367H00000X
- **State license:** 67000350 (Ohio)
- **Sole proprietor:** No
## Practice location
- **Address:** 7757 AUBURN RD STE 15, Painesville, OH 44077-9604
- **Phone:** (440) 350-0832
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Bills Medicare through:** 3 organizations under Medicare reassignment (form CMS-855R): University Primary Care Practices Inc (NPI 1255561742, Concord Twp, OH); University Hospitals Medical Group Inc (NPI 1669499414, Cleveland, OH); Ohio Anesthesia Group, Inc (NPI 1639348113, Canton, OH) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Clvlnd Clinic Lerner College Of Med Of Case Wstn Rsv University, class of 2019
## Record status
- **NPPES last updated:** April 8, 2020
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Source: [NPI Profile](https://npiprofile.com/npi/1164089306) · Data from the CMS NPPES public registry.