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

Dr. William J. Karlon, MD

Individual provider Anatomic Pathology & Clinical Pathology Physician · NPI 1154365088

Dr. William J. Karlon, MD is a Hematology in San Francisco, California. Graduated from University of California, Irvine, California College of Medicine in 2002, 24 years ago. Practices with University of California San Francisco, a 1,793-clinician group and accepts Medicare assignment. Licensed in California.

Years since qualifying
24
Trained at
University of California, Irvine, California College of Medicine
Licensed in
CA
In the registry since
2006
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

185 Berry St
San Francisco, CA 94107-1773
Phone: (415) 353-4721
Fax: (415) 353-4828
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Anatomic Pathology & Clinical Pathology Physician (primary) Taxonomy 207ZP0102X · Licence A87881 (CA)

Record details

NPI number1154365088
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 14, 2006
Last updated in NPPESJune 6, 2008

Medicare enrollment

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

Medicare specialtyHEMATOLOGY
Also practisesPATHOLOGY
Medical schoolUNIVERSITY OF CALIFORNIA, IRVINE, CALIFORNIA COLLEGE OF MEDICINE
Graduated 2002 (24 years in practice)
Group practice University Of California San Francisco — 1793 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

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