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

Thomas Lancaster Merlin, MD

Individual provider Emergency Medicine Physician · NPI 1215678040

Thomas Lancaster Merlin, MD is an Emergency Medicine in Clackamas, Oregon. Qualified in 2022, 4 years ago. Practices with Kaiser Foundation Health Plan of the Northwest, a 1,811-clinician group and accepts Medicare assignment. Licensed in Oregon and Texas.

Years since qualifying
4
Licensed in
OR, TX
In the registry since
2022
Specialties on file
2
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

10180 SE Sunnyside Rd
Clackamas, OR 97015-8970
Phone: (503) 803-2000
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Emergency Medicine Physician (primary) Taxonomy 207P00000X · Licence MD224072 (OR)
Emergency Medicine Physician Taxonomy 207P00000X · Licence U7472 (TX)

Record details

NPI number1215678040
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedApril 5, 2022
Last updated in NPPESJuly 4, 2025
Certification dateJuly 4, 2025
Mailing address10180 Se Sunnyside Rd, Clackamas, OR 97015-8970

Medicare enrollment

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

Medicare specialtyEMERGENCY MEDICINE
Medical schoolOTHER
Graduated 2022 (4 years in practice)
Group practice Kaiser Foundation Health Plan Of The Northwest — 1811 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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