NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Vivian Marie Broadway-Firmage, DDS

General Practice Dentistry in Mill Valley, CA · enumerated 2005 · practices at Gary R Nelson DDS Msd Inc.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1114911617

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Dr. Vivian Marie Broadway-Firmage
Credential DDS
Sex Female
Practice address 141 Camino Alto, Suite 2, Mill Valley, CA, 94941
Phone (415) 388-6025
Fax (415) 388-1431
Enumeration date Sep 12, 2005
Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

1223G0001X General Practice Dentistry Dental Providers · License 42033 (CA) Primary
DDS · Doctor of Dental Surgery: A licensed dentist; DDS and DMD are equivalent dental degrees. About the DDS credential

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

Is this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.
What specialty is Vivian Broadway-Firmage?
Vivian Broadway-Firmage is registered in NPPES with the primary taxonomy of General Practice Dentistry. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.