Melissa Johnson Rhyasen, P.A.
Medical Physician Assistant · Lake Oswego, OR
Melissa Johnson Rhyasen, P.A. is a medical physician assistant with a practice address in Lake Oswego, Oregon, and NPI 1336411412, issued on Feb 3, 2012. Check the license (Oregon PA179385, as entered in NPPES) with the Oregon board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Melissa Johnson Rhyasen
- Credential
- P.A.
- Primary taxonomy
- Medical Physician Assistant 363AM0700X
- License number
- PA179385 OR
Self-reported in NPPES; status is on the state search - Practice location
- 123 C Ave, Lake Oswego, OR 97034
- Phone
- (503) 905-9006
- Enumerated
- Feb 3, 2012
- Record last updated
- Dec 23, 2024
- Medicare enrollment
- Enrolled (PECOS I20240829000005); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest medical physician assistant records → All 699 in Oregon → Look up another NPI →
Also registered at 123 C Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Stephen Austad, DODermatology Physician1679869119
- Mark Davis, PAMedical Physician Assistant1508928714
- Taylor PottratzPhysician Assistant1619532884
- Kalkidan Worku, ARNPFamily Nurse Practitioner1992695886
Verify Melissa Johnson Rhyasen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Oregon board licenses this profession
Search for license PA179385Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Industry payments in 2024: $152.86
3 payments; by number, the most common kind was food and beverage; the largest payer was Lilly USA, LLC. 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
- Clear Choice DermatologyLake Oswego, OR
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Melissa Johnson Rhyasen among 699 medical physician assistant records in Oregon
Melissa Johnson Rhyasen, P.A. 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 2012, is newer than 47% of them.
- NPI issued2012 · 47% of these records are older, 49% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 73% of these records are
- Graduated2013 · median 2014 among the 508 with a school on file
- Record last updated2024 · 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 Lake Oswego → Medical Physician Assistant nationwide →
The 8 medical physician assistant records with the nearest ZIP codes
- Mark Davis, PALake Oswego, OR 970341508928714
- Christina Bailey, PA-CLake Oswego, OR 970351518262013
- Karly GlennLake Oswego, OR 970351679255004
- Cassidy Berg, PA-CHood River, OR 970311467131466
- Sharon Dehart, PACMaupin, OR 970371881677540
- Clarabel Deleon, PA-CHood River, OR 970311053309286
- Victoria Hopkins, PAHood River, OR 970311497804173
- Audrey Howarth, PA-CHood River, OR 970311053084327
Common questions
What is Melissa Johnson Rhyasen, P.A.'s NPI number?
Melissa Johnson Rhyasen, P.A.'s National Provider Identifier (NPI) is 1336411412, issued on Feb 3, 2012. An NPI identifies a provider in billing; it is not a license.
Where is Melissa Johnson Rhyasen, P.A. located?
The NPPES record lists a practice address at 123 C Ave, Lake Oswego, OR, 97034. Phone: (503) 905-9006. Providers update this record themselves, so call before visiting.
How can I verify Melissa Johnson Rhyasen, P.A.'s license?
NPPES lists Oregon license number PA179385, as entered by the provider. Search the Oregon board that licenses this profession; the NPPES record confirms identity 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.