Mark C. Davis, PA
Medical Physician Assistant · Lake Oswego, OR
Mark C. Davis, PA is a medical physician assistant with a practice address in Lake Oswego, Oregon, and NPI 1508928714, issued on Dec 14, 2006. Check the license (Oregon PA01047, as entered in NPPES) with the Oregon board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Mark C. Davis
- Credential
- PA
- Primary taxonomy
- Medical Physician Assistant 363AM0700X
- License number
- PA01047 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
- Dec 14, 2006
- Record last updated
- Dec 24, 2024
- Fax
- (503) 238-0841
- Medicaid ID
- 044615 OR
- Medicare enrollment
- Enrolled (PECOS I20050914001413); 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
- Taylor PottratzPhysician Assistant1619532884
- Melissa Rhyasen, P.A.Medical Physician Assistant1336411412
- Kalkidan Worku, ARNPFamily Nurse Practitioner1992695886
Verify Mark C. Davis in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Oregon board licenses this profession
Search for license PA01047Check 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 medical physician assistant in 2024
896 Medicare Part D claims for 266 beneficiaries, against an average of 1,148 among the 23,801 providers of this specialty who prescribed in Part D. Brand-name drugs were 6% of claims.
Most prescribed
- Ketoconazole178 claims
- Triamcinolone Acetonide137 claims
- Minoxidil71 claims
- Clobetasol Propionate63 claims
- Mupirocin45 claims
- Doxycycline Monohydrate37 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): 98.3 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).
Industry payments in 2024: $3,232.34
148 payments; by number, the most common kind was food and beverage; the largest payer was Janssen Biotech, 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
- Clear Choice DermatologyLake Oswego, OR
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Mark C. Davis among 699 medical physician assistant records in Oregon
Mark C. Davis, 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 2006, is newer than 4% of them.
- NPI issued2006 · 4% of these records are older, 75% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 73% of these records are
- Graduated2004 · 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
- Melissa Rhyasen, P.A.Lake Oswego, OR 970341336411412
- 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 Mark C. Davis, PA's NPI number?
Mark C. Davis, PA's National Provider Identifier (NPI) is 1508928714, issued on Dec 14, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Mark C. Davis, PA 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 Mark C. Davis, PA's license?
NPPES lists Oregon license number PA01047, as entered by the provider. Search the Oregon board that licenses this profession; the NPPES record confirms identity only.
How much does Mark C. Davis, PA prescribe under Medicare Part D?
In 2024, Mark C. Davis, PA had 896 Medicare Part D claims for 266 beneficiaries; the average among medical physician assistant prescribers was 1,148. Part D covers Medicare prescriptions only.
What is Mark C. Davis, PA's MIPS final score?
The 2023 MIPS final score is 98.3 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.