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

Dr. John Herziger, MD

Individual provider Internal Medicine Physician · NPI 1518097914

Dr. John Herziger, MD is an Internal Medicine Physician in Sierra Madre, California. Practices as a sole proprietor. Licensed in California.

Licensed in
CA
In the registry since
2007
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

292 W Montecito Ave Unit P
Sierra Madre, CA 91024-1835
Phone: (626) 466-1076
Show map & directions

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

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence G33335 (CA)

Record details

NPI number1518097914
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedMarch 6, 2007
Last updated in NPPESJuly 8, 2007

Other providers in Sierra Madre