MR. GREG ROBERT ZARELLI MD
NPI 1831208479
Psychiatry & Neurology - Neurology in Clackamas, OR
About Mr. Greg Robert Zarelli Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MR. GREG ROBERT ZARELLI MD (NPI 1831208479) is an individual neurology provider in Clackamas, Oregon, licensed in Oregon (MD22338) and active in the NPI registry since August 2006. He is enrolled in Medicare PECOS and is a graduate of Baylor College Of Medicine.
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
Mr. Greg Robert Zarelli Md 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 Greg Zarelli reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Clackamas, OR 97015
- Reassigned Medicare billing, Oregon and Washington enrollments
- Also billed through NPI 1871848457 (Washington)
- 3,207 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 97015 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.
CLACKAMAS, OR 97015
CLACKAMAS, OR 97015
CLACKAMAS, OR 97015
CLACKAMAS, OR 97015
CLACKAMAS, OR 97015
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 Greg Zarelli's NPI number?
The NPI number for Greg Zarelli is 1831208479. It was assigned to this individual provider in the NPPES registry on August 29, 2006.
Where is Greg Zarelli located?
Greg Zarelli practices at 10180 SE Sunnyside Rd Dept. Of Neurology, Clinic C, Clackamas, OR 97015. The listed phone number is (503) 571-7211.
What is Greg Zarelli's specialty?
The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Neurology, with taxonomy code 2084N0400X.
Is Greg Zarelli enrolled in Medicare?
Yes. Greg Zarelli 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 Greg Zarelli's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Greg Zarelli reassigns Medicare benefits to Kaiser Foundation Health Plan Of The Northwest (Clackamas, OR). 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 Greg Zarelli's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Greg Zarelli accept?
Health plans from Kaiser Permanente list Greg Zarelli 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.
When was this NPI record last updated?
The NPPES record for Greg Zarelli was last updated on July 12, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.