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

Dr. Mark Todd Leibowitz, MD

Individual provider Internal Medicine Physician · NPI 1144352907

Dr. Mark Todd Leibowitz, MD is an Internal Medicine Physician in Long Beach, California. Licensed in California. Registered with an NPI since 2007.

Licensed in
CA
In the registry since
2007
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

2600 Redondo Ave Ste 500
Long Beach, CA 90806-2325
Phone: (562) 304-1742
Fax: (562) 981-0374
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence C41646 (CA)

Record details

NPI number1144352907
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMarch 9, 2007
Last updated in NPPESMay 28, 2013
Mailing address2600 Redondo Ave, Suite 500, Long Beach, CA 90806-2325

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