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

Glenn D Littenberg MD Inc

Organization Gastroenterology Physician · NPI 1336337542

Glenn D Littenberg MD Inc is a Gastroenterology Physician in Pasadena, California. Licensed in California. Registered with an NPI since 2007.

Licensed in
CA
In the registry since
2007
What do these letters mean?
Inc — Incorporated
A form of business registration, not a clinical qualification.

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Practice location Address checks out

630 S Raymond Ave Ste 240
Pasadena, CA 91105-3278
Phone: (626) 449-9920
Fax: (626) 578-7366
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Gastroenterology Physician (primary) Taxonomy 207RG0100X · Licence G27849 (CA)

Record details

NPI number1336337542
Entity typeOrganization (Type 2)
Organization subpartNo
Authorized official Glenn Littenberg — President · (626) 449-9920
NPI enumeratedOctober 12, 2007
Last updated in NPPESJune 17, 2009
Mailing address630 S Raymond Ave, Suite 240, Pasadena, CA 91105-3278

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