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

Individual provider Anesthesiologist Assistant · NPI 1417694381

Charles Comstock Chase, CAA is an Anesthesiology Assistant in Portland, Oregon. Graduated from University of Missouri, Kansas City, School of Medicine in 2022, 4 years ago. Practices with Freeman-Oak Hill Health System, a 385-clinician group, works from 3 locations and accepts Medicare assignment. Licensed in Missouri and Washington.

Years since qualifying
4
Trained at
University of Missouri, Kansas City, School of Medicine
Licensed in
MO, WA
In the registry since
2022
Specialties on file
3
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Practice location Address checks out

707 SW Washington St Ste 700
Portland, OR 97205-3523
Phone: (503) 299-9906
Fax: (503) 225-9002
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (2)

  • 1102 W 32nd St, Joplin, MO 64804-3503 — (417) 347-5222
  • 1201 S Grand Blvd, Saint Louis, MO 63104-1016 — (314) 257-3317

Specialties & licences

Anesthesiologist Assistant (primary) Taxonomy 367H00000X · Licence AA70065105 (WA)
Anesthesiologist Assistant Taxonomy 367H00000X
Anesthesiologist Assistant Taxonomy 367H00000X · Licence 2022036862 (MO)

Record details

NPI number1417694381
Entity typeIndividual (Type 1)
GenderMale
Credentials CAA
Sole proprietorNo
NPI enumeratedMay 12, 2022
Last updated in NPPESSeptember 10, 2026
Certification dateSeptember 10, 2026

Medicare enrollment

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

Medicare specialtyANESTHESIOLOGY ASSISTANT
Medical schoolUNIVERSITY OF MISSOURI, KANSAS CITY, SCHOOL OF MEDICINE
Graduated 2022 (4 years in practice)
Group practice Freeman-Oak Hill Health System — 385 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

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 patients107
Services billed 112 a service is one billed item, such as a visit, a test or a procedure
Average patient age68

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.

Practises at

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

Colleagues at Freeman-Oak Hill Health System

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 385 clinicians in the practice; 12 are shown here.

Other providers in Portland