DR. ROBERT M MAASS DDS
NPI 1205989415
Dentist - General Practice in Castro Valley, CA

Active since January 19, 2007
20265 LAKE CHABOT RD, CASTRO VALLEY, CA 94546(510) 881-8010(510) 538-0120 Get Directions Write a Review

NPPES record last updated: July 8, 2007. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Dr. Robert M Maass Dds NPPES

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

DR. ROBERT M MAASS DDS (NPI 1205989415) is an individual general practice provider in Castro Valley, California, licensed in California (25419) and active in the NPI registry since January 2007.

NPPES Registry Identity

NPI1205989415
Entity TypeIndividualMale
Primary Taxonomy1223G0001X
Provider Legal NameDR. ROBERT M MAASSCredential: DDS
Location Address20265 LAKE CHABOT RDCastro Valley, CA 94546-5307
Mailing Address5854 Highwood RdCastro Valley, CA 94552-1822 · (510) 881-0560
Fax(510) 538-0120
Sole ProprietorNo
Enumeration DateJanuary 19, 2007
Last NPPES UpdateJuly 8, 2007
NPI 1205989415 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyDentist · General PracticeDental Providers
Taxonomy Code1223G0001X
License Licensed in CA · 25419
Definition
A general dentist is the primary dental care provider for patients of all ages. The general dentist is responsible for the diagnosis, treatment, management and overall coordination of services related to patients' oral health needs.
20265 LAKE CHABOT RD, Castro Valley, CA 94546

Other Providers at the Same Location NPPES 8

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

Dentist (General Practice)
20265 LAKE CHABOT RD
CASTRO VALLEY, CA 94546
Dentist (General Practice)
20265 LAKE CHABOT RD
CASTRO VALLEY, CA 94546
Dentist (Orthodontics and Dentofacial Orthopedics)
20265 LAKE CHABOT RD
CASTRO VALLEY, CA 94546
Dentist (General Practice)
20265 LAKE CHABOT RD
CASTRO VALLEY, CA 94546
Dentist
20265 LAKE CHABOT RD
CASTRO VALLEY, CA 94546
Dentist
20265 LAKE CHABOT RD
CASTRO VALLEY, CA 94546
Dentist (General Practice)
20265 LAKE CHABOT RD
CASTRO VALLEY, CA 94546
Clinic/Center (Dental)
20265 LAKE CHABOT RD
CASTRO VALLEY, CA 94546

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 Robert Maass's NPI number?

The NPI number for Robert Maass is 1205989415. It was assigned to this individual provider in the NPPES registry on January 19, 2007.

Where is Robert Maass located?

Robert Maass practices at 20265 Lake Chabot Rd, Castro Valley, CA 94546. The listed phone number is (510) 881-8010.

What is Robert Maass's specialty?

The primary specialty registered for this NPI is Dentist, specializing in General Practice, with taxonomy code 1223G0001X.

When was this NPI record last updated?

The NPPES record for Robert Maass was last updated on July 8, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.