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

Matthew Hyun Joon Lee, DO

Individual provider Medical Oncology Physician · NPI 1326589581

Matthew Hyun Joon Lee, DO is a Hematology/Oncology in San Mateo, California. Graduated from Philadelphia College of Osteopathic Medicine in 2017, 9 years ago. Practices with UCSF Medical Group Business Services, a 1,531-clinician group, accepts Medicare assignment and offers telehealth. Licensed in California.

Years since qualifying
9
Trained at
Philadelphia College of Osteopathic Medicine
Licensed in
CA
In the registry since
2017
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

See every abbreviation used in this directory →

Practice location Address checks out

218 De Anza Blvd
San Mateo, CA 94402-3913
Phone: (650) 341-9131
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Medical Oncology Physician (primary) Taxonomy 207RX0202X · Licence 20A17254 (CA)

Record details

NPI number1326589581
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorYes
NPI enumeratedMarch 20, 2017
Last updated in NPPESJuly 22, 2024
Certification dateJuly 22, 2024
Mailing address4445 Magnolia Ave Riverside Community Hospital, Gme Office, Riverside, CA 92501

Medicare enrollment

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

Medicare specialtyHEMATOLOGY/ONCOLOGY
Also practisesINTERNAL MEDICINE
Medical schoolPHILADELPHIA COLLEGE OF OSTEOPATHIC MEDICINE
Graduated 2017 (9 years in practice)
Group practice Ucsf Medical Group Business Services — 1531 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations2 on file with Medicare

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