Greg Robert Zarelli, MD
Neurology Physician · Clackamas, OR
Greg Robert Zarelli, MD is a neurology physician with a practice address in Clackamas, Oregon, and NPI 1831208479, issued on Aug 29, 2006. Check the license (Oregon MD22338, as entered in NPPES) on the Oregon Medical Board; the Medicare figures below come from public CMS files.
- Name
- Greg Robert Zarelli
- Credential
- MD
- Primary taxonomy
- Neurology Physician 2084N0400X
- License numbers
- MD22338 OR
MD00038992 WA
Self-reported in NPPES; status is on the state search - Practice location
- 10180 SE Sunnyside RD, Clackamas, OR 97015
- Phone
- (503) 571-7211
- Enumerated
- Aug 29, 2006
- Record last updated
- Jul 12, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (503) 571-3613
- Medicare enrollment
- Enrolled (PECOS I20080229000335); accepts Medicare assignment
- Medical or professional school
- Baylor College Of Medicine
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest neurology physician records → All 287 in Oregon → Look up another NPI →
Also registered at 10180 SE Sunnyside RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Aaron Abajian, MDDiagnostic Radiology Physician1942732300
- Samer Abufadil, MDInternal Medicine Physician1750437653
- Jeremy Adler, M.D.Anatomic Pathology & Clinical Pathology Physician1548617483
- Alejandro Aguilar, PA-CPhysician Assistant1740940006
- Usman Ahmad, D.O.Internal Medicine Physician1326288697
- Hyun Jung AhnPhysical Therapist1245014703
Verify Greg Robert Zarelli in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersOregon Medical Board
Search for license MD22338Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
3.1 times the Medicare Part D claims of the average neurology physician in 2024
4,212 Medicare Part D claims for 604 beneficiaries, against an average of 1,370 among the 15,005 providers of this specialty who prescribed in Part D. Brand-name drugs were 3% of claims.
Most prescribed
- Baclofen419 claims
- Methylphenidate Hcl406 claims
- Dalfampridine Er367 claims
- Levetiracetam271 claims
- Methylphenidate Er238 claims
- Galantamine Er220 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Bills Medicare through one group practice
- Kaiser Foundation Health Plan OF The NorthwestClackamas, OR
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Greg Robert Zarelli among 287 neurology physician records in Oregon
Greg Robert Zarelli, MD is one of 287 neurology physician records with a practice address in Oregon. 73% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 10% of them.
- NPI issued2006 · 10% of these records are older, 54% newer
- In a Medicare fileYes · 73% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Record last updated2007 · 64% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084N0400X and a Oregon practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Neurology Physician providers in Oregon
There are 287 neurology physician records in Oregon.
All 287 in Oregon → Every provider in Clackamas → Neurology Physician nationwide →
The 8 neurology physician records with the nearest ZIP codes
- Matthew Creech, DOClackamas, OR 970151043849516
- Sierra Ford, D.O.Clackamas, OR 970151568721405
- Frank Gilliam, M.D.Clackamas, OR 970151912074162
- Christina Peterson, MDClackamas, OR 970151245394022
- Tejas Ranade, MDClackamas, OR 970151043702459
- Cara Rozell, D.O.Clackamas, OR 970151003929571
- Michelle Stacey, M.D.Clackamas, OR 970151861758799
- Jasmine May, MD, PHDBeaverton, OR 970081639561061
Common questions
What is Greg Robert Zarelli, MD's NPI number?
Greg Robert Zarelli, MD's National Provider Identifier (NPI) is 1831208479, issued on Aug 29, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Greg Robert Zarelli, MD located?
The NPPES record lists a practice address at 10180 SE Sunnyside RD, Clackamas, OR, 97015. Phone: (503) 571-7211. Providers update this record themselves, so call before visiting.
How can I verify Greg Robert Zarelli, MD's license?
NPPES lists Oregon license number MD22338, as entered by the provider. Search the Oregon Medical Board at https://www.oregon.gov/OMB/Pages/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Greg Robert Zarelli, MD prescribe under Medicare Part D?
In 2024, Greg Robert Zarelli, MD had 4,212 Medicare Part D claims for 604 beneficiaries; the average among neurology physician prescribers was 1,370. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.