Lionel P. Marx, PA
Medical Physician Assistant · Happy Valley, OR
Lionel P. Marx, PA is a medical physician assistant with a practice address in Happy Valley, Oregon, and NPI 1013268200, issued on Sep 27, 2012. Check the license (Oregon PA160239, as entered in NPPES) with the Oregon board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Lionel P. Marx
- Credential
- PA
- Primary taxonomy
- Medical Physician Assistant 363AM0700X
- License number
- PA160239 OR
Self-reported in NPPES; status is on the state search - Practice location
- 9361 SE 82ND Ave, Happy Valley, OR 97086
- Phone
- (971) 202-2090
- Enumerated
- Sep 27, 2012
- Record last updated
- Aug 16, 2023
- Medicare enrollment
- Enrolled (PECOS I20130220000368); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest medical physician assistant records → All 699 in Oregon → Look up another NPI →
Verify Lionel P. Marx in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Oregon board licenses this profession
Search for license PA160239Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
81% fewer Medicare Part D claims than the average medical physician assistant in 2024
220 Medicare Part D claims for 171 beneficiaries, against an average of 1,148 among the 23,801 providers of this specialty who prescribed in Part D. Brand-name drugs were 9% of claims.
Most prescribed
- Nitrofurantoin Mono-Macro26 claims
- Cephalexin24 claims
- Doxycycline Hyclate24 claims
- Prednisone17 claims
- Amoxicillin-Clavulanate Potass13 claims
- Albuterol Sulfate Hfa12 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.
The practice group's MIPS final score for 2023 (Medicare payment program): 86 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Legacy Clinics LLCPortland, OR
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Lionel P. Marx among 699 medical physician assistant records in Oregon
Lionel P. Marx, PA 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
- Graduated2012 · median 2014 among the 508 with a school on file
- Record last updated2023 · 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 Happy Valley → Medical Physician Assistant nationwide →
The 8 medical physician assistant records with the nearest ZIP codes
- Lindsey RobinsonHappy Valley, OR 970861295398766
- Maci Pfaffenberger, PA-CGresham, OR 970801225481906
- Dyea Summers, PA-CGresham, OR 970801073744769
- Marguerite Ballard, PA-CWoodburn, OR 970711215011820
- Miriam Habafy, PA-CWoodburn, OR 970711831273457
- Kevin Heidrick, P.A.-CWoodburn, OR 970711891884268
- Tana Kornachuk, PA-CWoodburn, OR 970711922463645
- Kristyn Van AllenWoodburn, OR 970711770461931
Common questions
What is Lionel P. Marx, PA's NPI number?
Lionel P. Marx, PA's National Provider Identifier (NPI) is 1013268200, issued on Sep 27, 2012. An NPI identifies a provider in billing; it is not a license.
Where is Lionel P. Marx, PA located?
The NPPES record lists a practice address at 9361 SE 82ND Ave, Happy Valley, OR, 97086. Phone: (971) 202-2090. Providers update this record themselves, so call before visiting.
How can I verify Lionel P. Marx, PA's license?
NPPES lists Oregon license number PA160239, as entered by the provider. Search the Oregon board that licenses this profession; the NPPES record confirms identity only.
How much does Lionel P. Marx, PA prescribe under Medicare Part D?
In 2024, Lionel P. Marx, PA had 220 Medicare Part D claims for 171 beneficiaries; the average among medical physician assistant prescribers was 1,148. Part D covers Medicare prescriptions only.
What is Lionel P. Marx, PA's MIPS final score?
The 2023 MIPS final score is 86 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.