Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Mark C Davis, PA

Individual provider Surgical Physician Assistant · NPI 1508928714

Mark C Davis, PA is a Physician Assistant in Lake Oswego, Oregon. Qualified in 2004, 22 years ago. Practices with Clear Choice Dermatology, a 48-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Oregon.

Years since qualifying
22
Licensed in
OR
In the registry since
2006
Specialties on file
2
What do these letters mean?
PA — Physician Assistant
A licensed clinician who examines, diagnoses and treats under a physician's supervision.

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Practice location Address checks out

123 C Ave
Lake Oswego, OR 97034-2353
Phone: (503) 905-9006
Fax: (503) 238-0841
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 5050 Ne Hoyt St Ste 138, Portland, OR 97213-2955 — (503) 238-1061

Specialties & licences

Medical Physician Assistant (primary) Taxonomy 363AM0700X · Licence PA01047 (OR)
Surgical Physician Assistant Taxonomy 363AS0400X · Licence PA01047 (OR)

Record details

NPI number1508928714
Entity typeIndividual (Type 1)
GenderMale
Credentials PA
Sole proprietorNo
NPI enumeratedDecember 14, 2006
Last updated in NPPESDecember 24, 2024
Certification dateDecember 24, 2024

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyPHYSICIAN ASSISTANT
Medical schoolOTHER
Graduated 2004 (22 years in practice)
Group practice Clear Choice Dermatology — 48 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients186
Services billed 1,493 a service is one billed item, such as a visit, a test or a procedure
Average patient age72

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Payments from drug and device companies, 2025

Drug and device makers are required by federal law (the Physician Payments Sunshine Act) to report what they pay or give to clinicians, and CMS publishes the reports as Open Payments. This is the 2025 program year. A report is a record of a payment, not an allegation of anything, and many are small items such as meals. Only general payments are listed here; research payments and ownership or investment interests are reported separately by CMS and are not shown.

Food and Beverage $2,505 154 payments · a meal or drink at a meeting or visit, not a fee
Education $196 2 payments · educational material or training, not a fee

Each amount is the sum of what companies reported for that kind of payment in 2025, rounded to the dollar. Not all of it is income to the clinician: a meal is not a fee, a charitable contribution goes to a charity, and a royalty or an acquisition payment is not a salary.

Check a report, or dispute one, at the source in CMS’s own tool, Open Payments. Corrections go through CMS’s dispute process. This site removes a home address on request and asks for no proof, because that is privacy; it will not remove an accurate payment report on request, because that is a statutory public disclosure.

Colleagues at Clear Choice Dermatology

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 48 clinicians in the practice; 12 are shown here.

Other providers in Lake Oswego