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DR. MARK TODD LEIBOWITZ M.D.
NPI 1144352907
Internal Medicine in Long Beach, CA

Active since March 09, 2007
2600 REDONDO AVE, SUITE 500, LONG BEACH, CA 90806(562) 304-1742(562) 981-0374 Get Directions Write a Review

NPPES record last updated: May 28, 2013. Verified against the NPPES registry weekly; last sync: August 16, 2026.

About Dr. Mark Todd Leibowitz M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. MARK TODD LEIBOWITZ M.D. (NPI 1144352907) is an individual internal medicine provider in Long Beach, California, licensed in California (C41646) and active in the NPI registry since March 2007.

NPPES Registry Identity

NPI1144352907
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameDR. MARK TODD LEIBOWITZCredential: M.D.
Location Address2600 REDONDO AVE, SUITE 500Long Beach, CA 90806-2325
Mailing Address2600 Redondo Ave, Suite 500Long Beach, CA 90806-2325 · (562) 304-1742 · Fax (562) 981-0374
Phone(562) 304-1742
Fax(562) 981-0374
Sole ProprietorNo
Enumeration DateMarch 9, 2007
Last NPPES UpdateMay 28, 2013
✔ NPI 1144352907 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in CA · C41646
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
2600 REDONDO AVE, Long Beach, CA 90806
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Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

ELISA GABRIELA MARTINEZ
Social Worker (Clinical)
2600 REDONDO AVE
LONG BEACH, CA 90806
Los Angeles County (562) 256-2900
MS. MARISELA BANDA CADACII
Counselor (Addiction (Substance Use Disorder))
2600 REDONDO AVE
LONG BEACH, CA 90806
Los Angeles County (818) 930-7298
ISABELLA ROSE BELTRAN
Registered Nurse (Psychiatric/Mental Health)
2600 REDONDO AVE
LONG BEACH, CA 90806
Los Angeles County (844) 562-1212
DR. CYNTHIA ANNE WATLER M.D.
Pediatrics
2600 REDONDO AVE
LONG BEACH, CA 90806
Los Angeles County (562) 988-7573
UNAKEM ANNETTE KAZEEM
Nurse Practitioner
2600 REDONDO AVE
LONG BEACH, CA 90806
Los Angeles County (562) 988-7000
STEPHANIE MORENO-CARVAJAL
Social Worker (Clinical)
2600 REDONDO AVE
LONG BEACH, CA 90806
Los Angeles County (562) 256-2906
MARIA KESLER ASW, CADC II
Social Worker
2600 REDONDO AVE
LONG BEACH, CA 90806
Los Angeles County (562) 256-2906
DR. JANIS REIKO NOBE M.D.
Ophthalmology
2600 REDONDO AVE
LONG BEACH, CA 90806
Los Angeles County (562) 988-7090

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Mark Leibowitz's NPI number?

The NPI number for Mark Leibowitz is 1144352907. It was assigned to this individual provider in the NPPES registry on March 9, 2007.

Where is Mark Leibowitz located?

Mark Leibowitz practices at 2600 Redondo Ave Suite 500, Long Beach, CA 90806. The listed phone number is (562) 304-1742.

What is Mark Leibowitz's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

When was this NPI record last updated?

The NPPES record for Mark Leibowitz was last updated on May 28, 2013. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.