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

William J Collins, MD

Individual provider Gastroenterology Physician · NPI 1104892074

William J Collins, MD is a Gastroenterology Physician in Orange, California. Licensed in California. Registered with an NPI since 2006.

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

1201 W La Veta Ave Ste 211
Orange, CA 92868-4213
Phone: (714) 639-3363
Fax: (714) 532-3460
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Gastroenterology Physician (primary) Taxonomy 207RG0100X · Licence C33697 (CA)

Record details

NPI number1104892074
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedFebruary 28, 2006
Last updated in NPPESJuly 13, 2026
Mailing address1201 W La Veta Ave, Suite 211, Orange, CA 92868-4213

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