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

Chiajin Chiou, MD

Individual provider Student in an Organized Health Care Education/Training Program · NPI 1972815413

Chiajin Chiou, MD practises Internal Medicine in Mount Vernon, Washington. Graduated from Saint Louis University School of Medicine in 2010, 16 years ago. Practices with Overlake Medical Clinics LLC, a 426-clinician group and accepts Medicare assignment. Licensed in Washington.

Years since qualifying
16
Trained at
Saint Louis University School of Medicine
Licensed in
WA
In the registry since
2010
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

Student / training record This NPI belongs to someone enrolled in a health care training programme. It carries no licence and no practice of its own, so no address or phone number is published for it.

Mount Vernon, WA

No coordinates on file. Search this address in Google Maps

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence MD60371422 (WA)
Student in an Organized Health Care Education/Training Program Taxonomy 390200000X

Record details

NPI number1972815413
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedJuly 13, 2010
Last updated in NPPESAugust 19, 2013

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolSAINT LOUIS UNIVERSITY SCHOOL OF MEDICINE
Graduated 2010 (16 years in practice)
Group practice Overlake Medical Clinics Llc — 426 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations3 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 567 a service is one billed item, such as a visit, a test or a procedure
Average patient age84

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.

Colleagues at Overlake Medical Clinics LLC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 426 clinicians in the practice; 12 are shown here.

Other providers in Mount Vernon