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

Dr. Irvin Richard Massoth, DDS, MSD

Individual provider Endodontics · NPI 1194803650

Dr. Irvin Richard Massoth, DDS, MSD is an Endodontics in Tarzana, California. Licensed in California. Registered with an NPI since 2006.

Licensed in
CA
In the registry since
2006
What do these letters mean?
DDS — Doctor of Dental Surgery
A dentist. DDS and DMD are the same qualification — universities choose which title to award.

See every abbreviation used in this directory →

Practice location Address checks out

5567 Reseda Blvd #100
Tarzana, CA 91356-2674
Phone: (818) 705-1274
Fax: (818) 705-6782
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Endodontics (primary) Taxonomy 1223E0200X · Licence 28957 (CA)

Record details

NPI number1194803650
Entity typeIndividual (Type 1)
GenderMale
Credentials DDS , MSD
Sole proprietorNo
NPI enumeratedNovember 1, 2006
Last updated in NPPESJuly 8, 2007

Other providers in Tarzana