Matthew Aaron Fellin, M.D.
Emergency Medicine Physician · Clackamas, OR
Matthew Aaron Fellin, M.D. is an emergency medicine physician with a practice address in Clackamas, Oregon, and NPI 1740625300, issued on May 8, 2013. Check the license (Oregon MD182304, as entered in NPPES) on the Oregon Medical Board; the Medicare figures below come from public CMS files.
- Name
- Matthew Aaron Fellin
- Credential
- M.D.
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License numbers
- MD182304 OR
MD043902 DC
Self-reported in NPPES; status is on the state search - Practice location
- 10180 SE Sunnyside RD, Clackamas, OR 97015
- Phone
- (800) 813-2000
- Enumerated
- May 8, 2013
- Record last updated
- Dec 16, 2025
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 1,079 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 Matthew Aaron Fellin in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersOregon Medical Board
Search for license MD182304Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
22% fewer Medicare Part D claims than the average emergency medicine physician in 2024
177 Medicare Part D claims for 108 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. 24 claims were for opioids.
Most prescribed
- Oxycodone Hcl18 claims
- Albuterol Sulfate Hfa12 claims
- Prednisone12 claims
- Ondansetron Odt11 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.
Matthew Aaron Fellin among 1,079 emergency medicine physician records in Oregon
Matthew Aaron Fellin, M.D. is one of 1,079 emergency medicine physician records with a practice address in Oregon. 77% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2013, is newer than 66% of them.
- NPI issued2013 · 66% of these records are older, 29% newer
- In a Medicare fileYes · 77% of these records are
- In the CMS Doctors and Clinicians fileNo · 52% of these records are
- Record last updated2025 · 57% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a Oregon practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
94 emergency medicine physician records list a practice address in Clackamas
They are 94 of the 2,098 NPPES records with a practice address in Clackamas, and 1,079 emergency medicine physician records in Oregon.
All 1,079 in Oregon → Every provider in Clackamas → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Scott Bailey, M.D.Clackamas, OR 970151831159490
- Laurel Berge, M.D.Clackamas, OR 970151811944853
- Frederic Cirillo, MDClackamas, OR 970151417923665
- Josephine Colbach, M.D.Clackamas, OR 970151720091101
- Joseph Ehlers, MDClackamas, OR 970151629033329
- Briar Ertz-Berger, MDClackamas, OR 970151508866203
- Jennifer Larson, M.D.Happy Valley, OR 970151679512347
- Nicholas Leonard, M.D.Clackamas, OR 970151003929787
Common questions
What is Matthew Aaron Fellin, M.D.'s NPI number?
Matthew Aaron Fellin, M.D.'s National Provider Identifier (NPI) is 1740625300, issued on May 8, 2013. An NPI identifies a provider in billing; it is not a license.
Where is Matthew Aaron Fellin, M.D. located?
The NPPES record lists a practice address at 10180 SE Sunnyside RD, Clackamas, OR, 97015. Phone: (800) 813-2000. Providers update this record themselves, so call before visiting.
How can I verify Matthew Aaron Fellin, M.D.'s license?
NPPES lists Oregon license number MD182304, 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 Matthew Aaron Fellin, M.D. prescribe under Medicare Part D?
In 2024, Matthew Aaron Fellin, M.D. had 177 Medicare Part D claims for 108 beneficiaries; the average among emergency medicine physician prescribers was 226. 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.