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

Individual provider Internal Medicine Physician · NPI 1780110338

Woojin Joo, MD is an Internal Medicine in Los Angeles, California. Graduated from St Louis College of Physicians and Surgeons in 2017, 9 years ago. Practices as a sole proprietor and accepts Medicare assignment. Licensed in California.

Years since qualifying
9
Trained at
St Louis College of Physicians and Surgeons
Licensed in
CA
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

3511 W Olympic Blvd Ste 202
Los Angeles, CA 90019-3563
Phone: (310) 294-8090
Fax: (310) 294-5343
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence A160312 (CA)

Record details

NPI number1780110338
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedMay 2, 2017
Last updated in NPPESSeptember 9, 2025
Certification dateSeptember 9, 2025

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolST. LOUIS COLLEGE OF PHYSICIANS AND SURGEONS
Graduated 2017 (9 years in practice)
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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