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

Mark Isaac Lieber, MD

Individual provider Internal Medicine Physician · NPI 1467072678

Mark Isaac Lieber, MD is an Internal Medicine Physician in Los Angeles, California. Licensed in California. Registered with an NPI since 2020.

Licensed in
CA
In the registry since
2020
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

1300 N Mission Rd
Los Angeles, CA 90033-1021
Phone: (323) 409-8255
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 A185243 (CA)

Record details

NPI number1467072678
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedApril 17, 2020
Last updated in NPPESJuly 17, 2023
Certification dateJuly 17, 2023

Other providers in Los Angeles