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

Sarah A Hartman

Individual provider Student in an Organized Health Care Education/Training Program · NPI 1558822122

Sarah A Hartman practises Surgical Oncology in San Francisco, California. Qualified in 2019, 7 years ago. Practices with UCSF Dept of Surgery, a 211-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in California.

Years since qualifying
7
Licensed in
CA
In the registry since
2019
Specialties on file
2

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.

San Francisco, CA

Additional practice locations (1)

  • 100 E 77th St, New York, NY 10075-1850 — (212) 434-2000

Specialties & licences

Surgical Oncology Physician (primary) Taxonomy 2086X0206X · Licence A201413 (CA)
Student in an Organized Health Care Education/Training Program Taxonomy 390200000X

Record details

NPI number1558822122
Entity typeIndividual (Type 1)
GenderFemale
Sole proprietorNo
NPI enumeratedMarch 27, 2019
Last updated in NPPESJune 20, 2025
Certification dateJune 20, 2025

Medicare enrollment

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

Medicare specialtySURGICAL ONCOLOGY
Medical schoolOTHER
Graduated 2019 (7 years in practice)
Group practice Ucsf Dept Of Surgery — 211 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Procedures

From CMS Care Compare, which counts the procedures a clinician billed to Original Medicare and Medicare Advantage over a recent 12-month period. CMS reports a fixed list of common procedures, so this is not everything the clinician does. Counts of 10 or fewer are given as a range, because CMS withholds small numbers.

Mastectomy 1–10 times
Melanoma (skin cancer) excision 1–10 times

The percentile compares how often this clinician performed the procedure with other clinicians who performed it, as CMS calculates it. It measures volume, not outcomes or skill.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at UCSF Dept of Surgery

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 211 clinicians in the practice; 12 are shown here.

Other providers in San Francisco