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

Siegfried Willem Tjonajong, DMDMSD

Individual provider Dentist · NPI 1801049234

Siegfried Willem Tjonajong, DMDMSD is a Dentist in Ridgewood, New Jersey. Practices as a sole proprietor. Licensed in New Jersey.

Licensed in
NJ
In the registry since
2008
Specialties on file
2

Practice location Address checks out

947 Linwood Ave Ste 1 Oral & Maxillofacial Prosthodontics
Ridgewood, NJ 07450-2939
Phone: (201) 670-4800
Fax: (201) 670-6776
Show map & directions

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

Specialties & licences

Dentist (primary) Taxonomy 122300000X · Licence 22DIO1785000 (NJ)
Prosthodontics Taxonomy 1223P0700X · Licence NJ-3807 (NJ)

Record details

NPI number1801049234
Entity typeIndividual (Type 1)
GenderMale
Credentials DMDMSD
Sole proprietorYes
NPI enumeratedOctober 29, 2008
Last updated in NPPESOctober 29, 2008

Other providers in Ridgewood