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

Dr. Thomas C Rayson, MD

Individual provider Family Medicine Physician · NPI 1649219130

Dr. Thomas C Rayson, MD practises Pathology in Kailua Kona, Hawaii. Qualified in 1992, 34 years ago. Practices with Northwestern Medical Faculty Foundation, a 4,394-clinician group, works from 4 locations and accepts Medicare assignment. Licensed in Hawaii, Illinois and Wisconsin.

Years since qualifying
34
Licensed in
HI, IL, WI
In the registry since
2006
Specialties on file
5
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

75-5915 Walua Rd
Kailua Kona, HI 96740-1375
Phone: (808) 796-5624
Show map & directions

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

Additional practice locations (3)

  • 70-1019 Haukapila St, Kealakelua, HI 96750 — (808) 322-9311
  • 300 Randall Rd # Ll, Geneva, IL 60134-4200 — (630) 208-4201
  • 900 Illinois Ave, Stevens Point, WI 54481-3114 — (715) 346-5000

Specialties & licences

Anatomic Pathology & Clinical Pathology Physician (primary) Taxonomy 207ZP0102X · Licence 34555-20 (WI)
Family Medicine Physician Taxonomy 207Q00000X · Licence 20808 (HI)
Anatomic Pathology & Clinical Pathology Physician Taxonomy 207ZP0102X · Licence 036172686 (IL)
General Practice Physician Taxonomy 208D00000X · Licence MD-20808 (HI)
General Practice Physician Taxonomy 208D00000X · Licence 34555-20 (WI)

Record details

NPI number1649219130
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedJune 6, 2006
Last updated in NPPESNovember 15, 2024
Certification dateNovember 15, 2024

Medicare enrollment

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

Medicare specialtyPATHOLOGY
Medical schoolOTHER
Graduated 1992 (34 years in practice)
Group practice Northwestern Medical Faculty Foundation — 4394 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations5 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 patients510
Services billed 1,064 a service is one billed item, such as a visit, a test or a procedure
Average patient age71

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 Northwestern Medical Faculty Foundation

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 4394 clinicians in the practice; 12 are shown here.

Other providers in Kailua Kona