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

Kelsey Haruko Natsuhara, MD

Individual provider Medical Oncology Physician · NPI 1265936413

Kelsey Haruko Natsuhara, MD is an Internal Medicine in San Francisco, California. Graduated from Harvard Medical School in 2018, 8 years ago. Practices with UCSF Medical Group Business Services, a 1,531-clinician group, works from 2 locations, accepts Medicare assignment and offers telehealth. Licensed in California.

Years since qualifying
8
Trained at
Harvard Medical School
Licensed in
CA
In the registry since
2018
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

1825 4th St Fl 3
San Francisco, CA 94143-2350
Phone: (415) 353-7070
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 505 Parnassus Ave Rm M-987, San Francisco, CA 94143-2204 — (415) 476-1528

Specialties & licences

Medical Oncology Physician (primary) Taxonomy 207RX0202X · Licence A165347 (CA)

Record details

NPI number1265936413
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedMarch 22, 2018
Last updated in NPPESNovember 13, 2025
Certification dateNovember 13, 2025

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Also practisesHEMATOLOGY/ONCOLOGY
Medical schoolHARVARD MEDICAL SCHOOL
Graduated 2018 (8 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 locations3 on file with Medicare

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