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

Dr. William Stephen Holtz, MD

Individual provider Nuclear Medicine Physician · NPI 1700988268

Dr. William Stephen Holtz, MD is a Nuclear Medicine Physician in Newport Beach, 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.

See every abbreviation used in this directory →

Practice location Address checks out

1605 Avocado Ave
Newport Beach, CA 92660-7725
Phone: (949) 760-3025
Fax: (949) 720-3944
Show map & directions

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

Specialties & licences

Nuclear Medicine Physician (primary) Taxonomy 207U00000X · Licence G54674 (CA)

Record details

NPI number1700988268
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedSeptember 3, 2006
Last updated in NPPESJuly 21, 2022

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