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

Martin J. Collen MD Inc

Organization Gastroenterology Physician · NPI 1679700579

Martin J. Collen MD Inc is a Gastroenterology Physician in Riverside, California. Licensed in California. Registered with an NPI since 2009.

Licensed in
CA
In the registry since
2009
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

6647 Hawarden Dr
Riverside, CA 92506-5111
Phone: (951) 203-1538
Fax: (951) 789-7610
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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 00G210320 (CA)

Record details

NPI number1679700579
Entity typeOrganization (Type 2)
Organization subpartNo
Authorized official Roberta Collen — Office Administrator · (951) 271-2237
NPI enumeratedJune 18, 2009
Last updated in NPPESJune 18, 2009
Mailing address7120 Indiana Ave Ste G, Pmb 81, Riverside, CA 92504-4500

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