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

Dr. Aaron C. Logan, MD, PHD

Individual provider Internal Medicine Physician · NPI 1801076633

Dr. Aaron C. Logan, MD, PHD practises Hematology in San Francisco, California. Qualified in 2006, 20 years ago. Practices with University of California San Francisco, a 1,793-clinician group, accepts Medicare assignment and offers telehealth. Licensed in California.

Years since qualifying
20
Licensed in
CA
In the registry since
2007
Specialties on file
3
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.
PHD — Doctor of Philosophy
A research doctorate. In healthcare it usually sits alongside a clinical licence.

See every abbreviation used in this directory →

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Practice location Address checks out

400 Parnassus Ave Fl 4
San Francisco, CA 94143-2202 Not confirmed with CMS for 11 years — call before visiting
Phone: (415) 353-2421
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Hematology & Oncology Physician (primary) Taxonomy 207RH0003X · Licence A101414 (CA)
Internal Medicine Physician Taxonomy 207R00000X · Licence A101414 (CA)
Hematology (Internal Medicine) Physician Taxonomy 207RH0000X · Licence A101414 (CA)

Record details

NPI number1801076633
Entity typeIndividual (Type 1)
GenderMale
Credentials MD , PHD
Sole proprietorYes
NPI enumeratedNovember 9, 2007
Last updated in NPPESSeptember 17, 2015

Medicare enrollment

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

Medicare specialtyHEMATOLOGY
Also practisesHEMATOLOGY/ONCOLOGY
Medical schoolOTHER
Graduated 2006 (20 years in practice)
Group practice University Of California San Francisco — 1793 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations4 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 patients140
Services billed 748 a service is one billed item, such as a visit, a test or a procedure
Average patient age69

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.

Payments from drug and device companies, 2025

Drug and device makers are required by federal law (the Physician Payments Sunshine Act) to report what they pay or give to clinicians, and CMS publishes the reports as Open Payments. This is the 2025 program year. A report is a record of a payment, not an allegation of anything, and many are small items such as meals. Only general payments are listed here; research payments and ownership or investment interests are reported separately by CMS and are not shown.

Compensation for services other than consulting , including serving as faculty or as a speaker at a venue other than a continuing education program $56,458 11 payments
Consulting Fee $23,734 9 payments
Travel and Lodging $16,595 11 payments · travel or lodging paid or reimbursed, such as to attend a conference
Food and Beverage $1,122 17 payments · a meal or drink at a meeting or visit, not a fee

Each amount is the sum of what companies reported for that kind of payment in 2025, rounded to the dollar. Not all of it is income to the clinician: a meal is not a fee, a charitable contribution goes to a charity, and a royalty or an acquisition payment is not a salary.

Check a report, or dispute one, at the source in CMS’s own tool, Open Payments. Corrections go through CMS’s dispute process. This site removes a home address on request and asks for no proof, because that is privacy; it will not remove an accurate payment report on request, because that is a statutory public disclosure.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician. Those with a page here are linked.

  • Ucsf Medical Center Hospital · San Francisco, CA
  • Providence Santa Rosa Memorial Hospital Hospital · Santa Rosa, CA
  • Sutter Care At Home Home health agency · San Francisco, CA

Colleagues at University of California San Francisco

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 1793 clinicians in the practice; 12 are shown here.

Other providers in San Francisco