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

MS. Catherine Willenborg, PAC

Individual provider Surgical Physician Assistant · NPI 1154389153

MS. Catherine Willenborg, PAC is a Physician Assistant in Scottsdale, Arizona. Qualified in 2005, 21 years ago. Practices with Adventist Health Physicians Network, a 632-clinician group, works from 3 locations and accepts Medicare assignment. Licensed in Arizona and Nevada.

Years since qualifying
21
Licensed in
AZ, NV
In the registry since
2006
Specialties on file
2
What do these letters mean?
PAC — Physician Assistant, Certified
A physician assistant holding current national certification; usually written PA-C.

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Practice location Address checks out

13400 E Shea Blvd
Scottsdale, AZ 85259-5499
Phone: (480) 301-8000
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

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

Additional practice locations (2)

  • 2898 Broadway St, San Francisco, CA 94115-1061 — (775) 771-1824
  • 8 Woodland Rd, St Helena, CA 94574 — (775) 771-1824

Specialties & licences

Physician Assistant (primary) Taxonomy 363A00000X · Licence 10627 (AZ)
Surgical Physician Assistant Taxonomy 363AS0400X · Licence PA972 (NV)

Record details

NPI number1154389153
Entity typeIndividual (Type 1)
GenderFemale
Credentials PAC
Sole proprietorNo
NPI enumeratedMay 2, 2006
Last updated in NPPESOctober 21, 2026
Certification dateOctober 21, 2026

Medicare enrollment

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

Medicare specialtyPHYSICIAN ASSISTANT
Medical schoolOTHER
Graduated 2005 (21 years in practice)
Group practice Adventist Health Physicians Network — 632 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations8 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 $31 1 payment · 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.

  • Mayo Clinic Hospital Hospital · Phoenix, AZ

Colleagues at Adventist Health Physicians Network

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 632 clinicians in the practice; 12 are shown here.

Other providers in Scottsdale