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

Mrs. Aryon Michelle Nielsen, PA-C

Individual provider Medical Physician Assistant · NPI 1477369510

Mrs. Aryon Michelle Nielsen, PA-C is a Physician Assistant in Placerville, California. Graduated from University of California, Davis School of Medicine in 2024, 2 years ago. Practices with Marshall Medical Center, a 171-clinician group and accepts Medicare assignment. Licensed in California.

Years since qualifying
2
Trained at
University of California, Davis School of Medicine
Licensed in
CA
In the registry since
2024
What do these letters mean?
PA-C — Physician Assistant, Certified
A physician assistant who holds current national certification.

See every abbreviation used in this directory →

Claim this listing Report a problem Suggest an edit

Practice location Address checks out

1095 Marshall Way
Placerville, CA 95667-5722
Phone: (253) 227-0379
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Medical Physician Assistant (primary) Taxonomy 363AM0700X · Licence PA65408 (CA)

Record details

NPI number1477369510
Entity typeIndividual (Type 1)
GenderFemale
Credentials PA-C
Sole proprietorNo
NPI enumeratedDecember 4, 2024
Last updated in NPPESDecember 7, 2025
Certification dateDecember 7, 2025

Medicare enrollment

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

Medicare specialtyPHYSICIAN ASSISTANT
Medical schoolUNIVERSITY OF CALIFORNIA, DAVIS SCHOOL OF MEDICINE
Graduated 2024 (2 years in practice)
Group practice Marshall Medical Center — 171 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations4 on file with Medicare

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 $93 5 payments · a meal or drink at a meeting or visit, 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.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician. Those with a page here are linked.

Colleagues at Marshall Medical Center

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 171 clinicians in the practice; 12 are shown here.

Other providers in Placerville