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

William Lawler, MD

Individual provider Medical Oncology Physician · NPI 1700886702

William Lawler, MD is a Medical Oncology Physician in Fullerton, California. Licensed in Arkansas and California. Registered with an NPI since 2005.

Licensed in
AR, CA
In the registry since
2005
Specialties on file
2
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

2151 N Harbor Blvd Ste 2200
Fullerton, CA 92835-3820
Phone: (714) 446-5900
Fax: (714) 446-5800
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Hematology & Oncology Physician (primary) Taxonomy 207RH0003X · Licence G16403 (CA)
Medical Oncology Physician Taxonomy 207RX0202X · Licence G16403 (AR)

Record details

NPI number1700886702
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedAugust 1, 2005
Last updated in NPPESApril 26, 2013

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