Sagen Castellanos Olson, PA-C
Medical Physician Assistant · Eugene, OR
Sagen Castellanos Olson, PA-C is a medical physician assistant with a practice address in Eugene, Oregon, and NPI 1376884304, issued on Mar 15, 2013. Check the license (Oregon 169708, as entered in NPPES) with the Oregon board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Sagen Castellanos Olson
- Credential
- PA-C
- Primary taxonomy
- Medical Physician Assistant 363AM0700X
- License number
- 169708 OR
Self-reported in NPPES; status is on the state search - Practice location
- 520 Country Club, Eugene, OR 97401
- Phone
- (541) 683-5001
- Enumerated
- Mar 15, 2013
- Record last updated
- Sep 28, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (541) 683-1422
- Medicaid ID
- 500616351 OR
- Medicare enrollment
- Enrolled (PECOS I20141118002013); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest medical physician assistant records → All 699 in Oregon → Look up another NPI →
Also registered at 520 Country Club
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Thomas Sroka, MDRadiation Oncology Physician1700058021
Verify Sagen Castellanos Olson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Oregon board licenses this profession
Search for license 169708Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
35% more Medicare Part D claims than the average medical physician assistant in 2024
1,549 Medicare Part D claims for 453 beneficiaries, against an average of 1,148 among the 23,801 providers of this specialty who prescribed in Part D. Brand-name drugs were 15% of claims. 206 claims were for opioids.
Most prescribed
- Anastrozole123 claims
- Oxycodone Hcl118 claims
- Lenalidomide73 claims
- Acyclovir72 claims
- Prochlorperazine Maleate64 claims
- Hydroxyurea57 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.
Industry payments in 2024: $280.01
2 payments; by number, the most common kind was food and beverage; the largest payer was Novocure Inc. The 16,165 providers of this specialty with any payment received $1,055.00 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Oncology Associates OF Oregon P CEugene, OR
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Sagen Castellanos Olson among 699 medical physician assistant records in Oregon
Sagen Castellanos Olson, PA-C is one of 699 medical physician assistant records with a practice address in Oregon. 81% 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 51% of them.
- NPI issued2013 · 51% of these records are older, 44% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 73% of these records are
- Graduated2014 · median 2014 among the 508 with a school on file
- Record last updated2021 · 52% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363AM0700X and a Oregon practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Medical Physician Assistant providers in Oregon
There are 699 medical physician assistant records in Oregon.
All 699 in Oregon → Every provider in Eugene → Medical Physician Assistant nationwide →
The 8 medical physician assistant records with the nearest ZIP codes
- Philip Chapa, PA-CEugene, OR 974011578538971
- Nathaniel Collins, PA CEugene, OR 974011023483419
- Paige Farrell, PAEugene, OR 974011588626220
- Lesa Hill, PA-CEugene, OR 974011669497715
- Kenda Hills, P.A.Eugene, OR 974011174561658
- Steven Hillyer, PAEugene, OR 974011780609016
- Wendy Hunter, PA-CEugene, OR 974011003858945
- Amy Lovett, PA-CEugene, OR 974011215177852
Common questions
What is Sagen Castellanos Olson, PA-C's NPI number?
Sagen Castellanos Olson, PA-C's National Provider Identifier (NPI) is 1376884304, issued on Mar 15, 2013. An NPI identifies a provider in billing; it is not a license.
Where is Sagen Castellanos Olson, PA-C located?
The NPPES record lists a practice address at 520 Country Club, Eugene, OR, 97401. Phone: (541) 683-5001. Providers update this record themselves, so call before visiting.
How can I verify Sagen Castellanos Olson, PA-C's license?
NPPES lists Oregon license number 169708, as entered by the provider. Search the Oregon board that licenses this profession; the NPPES record confirms identity only.
How much does Sagen Castellanos Olson, PA-C prescribe under Medicare Part D?
In 2024, Sagen Castellanos Olson, PA-C had 1,549 Medicare Part D claims for 453 beneficiaries; the average among medical physician assistant prescribers was 1,148. 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.