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

Individual provider Internal Medicine Physician · NPI 1851683338

Linus A Loo, MD is a Hospitalist in Renton, Washington. Qualified in 2011, 15 years ago. Practices with Valley Medical Group-Renton, a 422-clinician group and accepts Medicare assignment. Licensed in Washington.

Years since qualifying
15
Licensed in
WA
In the registry since
2011
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

400 S 43rd St
Renton, WA 98055-5714
Phone: (425) 251-5110
Fax: (425) 793-4707
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Hospitalist Physician (primary) Taxonomy 208M00000X · Licence MD60479592 (WA)
Internal Medicine Physician Taxonomy 207R00000X · Licence MD60479592 (WA)

Record details

NPI number1851683338
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMay 3, 2011
Last updated in NPPESMarch 27, 2019

Medicare enrollment

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

Medicare specialtyHOSPITALIST
Also practisesINTERNAL MEDICINE
Medical schoolOTHER
Graduated 2011 (15 years in practice)
Group practice Valley Medical Group-Renton — 422 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 patients167
Services billed 825 a service is one billed item, such as a visit, a test or a procedure
Average patient age78

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.

  • Valley Medical Center Hospital · Renton, WA

Colleagues at Valley Medical Group-Renton

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 422 clinicians in the practice; 12 are shown here.

Other providers in Renton