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

Dr. Keith Gregory Heinzerling, MD

Individual provider Addiction Medicine (Internal Medicine) Physician · NPI 1184724932

Dr. Keith Gregory Heinzerling, MD is an Addiction Medicine in Santa Monica, California. Graduated from Stanford University School of Medicine in 1998, 28 years ago. Practices with Providence Saint Johns Medical Foundation, a 285-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in California.

Years since qualifying
28
Trained at
Stanford University School of Medicine
Licensed in
CA
In the registry since
2006
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

1301 20th St Ste 540
Santa Monica, CA 90404-2118
Phone: (310) 582-7612
Fax: (424) 277-6342
Show map & directions

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

Additional practice locations (1)

  • 1920 Colorado Ave, Santa Monica, CA 90404-3414 — (310) 319-4700

Specialties & licences

Addiction Medicine (Internal Medicine) Physician (primary) Taxonomy 207RA0401X · Licence A79201 (CA)
Internal Medicine Physician Taxonomy 207R00000X · Licence A79201 (CA)

Record details

NPI number1184724932
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedSeptember 22, 2006
Last updated in NPPESApril 13, 2021
Certification dateApril 13, 2021

Medicare enrollment

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

Medicare specialtyADDICTION MEDICINE
Also practisesINTERNAL MEDICINE
Medical schoolSTANFORD UNIVERSITY SCHOOL OF MEDICINE
Graduated 1998 (28 years in practice)
Group practice Providence Saint Johns Medical Foundation — 285 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

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