Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Jack Hamson, MD

Individual provider Internal Medicine Physician · NPI 1932633385

Jack Hamson, MD is an Internal Medicine in South Bend, Washington. Qualified in 2016, 10 years ago. Practices with Portland Clinic, a 93-clinician group and accepts Medicare assignment. Licensed in Oregon.

Years since qualifying
10
Licensed in
OR
In the registry since
2017
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

826 Alder St
South Bend, WA 98586-4900
Phone: (360) 875-5579
Show map & directions

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

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence MD200995 (OR)

Record details

NPI number1932633385
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedApril 12, 2017
Last updated in NPPESFebruary 12, 2022
Certification dateFebruary 12, 2022
Mailing addressPo Box 143, Raymond, WA 98577-0143

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolOTHER
Graduated 2016 (10 years in practice)
Group practice Portland Clinic — 93 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare