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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

DR. HELENA LOUISE VIETS
NPI 1821757576
Dentist - Periodontics in San Francisco, CA

Active since December 09, 2021
707 PARNASSUS AVE, SAN FRANCISCO, CA 94143(415) 502-5800 Get Directions Write a Review

NPPES record last updated: July 22, 2026. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: Jul 22, 2026, Dec 9, 2021 (2 updates tracked since 2021).

About Dr. Helena Louise Viets NPPES

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

DR. HELENA LOUISE VIETS (NPI 1821757576) is an individual periodontics provider in San Francisco, California, licensed in California (111356) and active in the NPI registry since December 2021.

NPPES Registry Identity

NPI1821757576
Entity TypeIndividualFemale
Primary Taxonomy1223P0300X
Provider Legal NameDR. HELENA LOUISE VIETS
Location Address707 PARNASSUS AVESan Francisco, CA 94143-2210
Mailing Address550 Rivera StSan Francisco, CA 94116-1849
Phone(415) 502-5800
Sole ProprietorNo
Enumeration DateDecember 9, 2021
Last NPPES UpdateJuly 22, 20262 updates tracked since enumeration
NPPES CertifiedJuly 22, 2026
✔ NPI 1821757576 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyDentist · PeriodonticsDental Providers
Taxonomy Code1223P0300X
License✔ Licensed in CA · 111356
Definition
That specialty of dentistry which encompasses the prevention, diagnosis and treatment of diseases of the supporting and surrounding tissues of the teeth or their substitutes and the maintenance of the health, function and esthetics of these structures and tissues.
707 PARNASSUS AVE, San Francisco, CA 94143
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Other Providers at the Same Location NPPES 20

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

VICTORIA HOA TRAN
Student in an Organized Health Care Education/Training Program
707 PARNASSUS AVE
SAN FRANCISCO, CA 94143
San Francisco County (415) 502-5800
KATE LINDSEY
Student in an Organized Health Care Education/Training Program
707 PARNASSUS AVE
SAN FRANCISCO, CA 94143
San Francisco County (415) 502-5800
SNEHLATA OBEROI DDS
Dentist (Orthodontics and Dentofacial Orthopedics)
707 PARNASSUS AVE
SAN FRANCISCO, CA 94143
San Francisco County (415) 476-1138
ERIC LIN
Student in an Organized Health Care Education/Training Program
707 PARNASSUS AVE
SAN FRANCISCO, CA 94143
San Francisco County (415) 476-3028
DR. AVERY MARC LIEBERMAN DDS
Dentist (General Practice)
707 PARNASSUS AVE
SAN FRANCISCO, CA 94143
San Francisco County (415) 512-5800
ISABELLE YIWEN TSENG
Student in an Organized Health Care Education/Training Program
707 PARNASSUS AVE
SAN FRANCISCO, CA 94143
San Francisco County (415) 502-5800
DR. HELINA IYOB-TESSEMA DMD
Student in an Organized Health Care Education/Training Program
707 PARNASSUS AVE
SAN FRANCISCO, CA 94143
San Francisco County (415) 476-3276
MR. ZHI-HAN LAI
Student in an Organized Health Care Education/Training Program
707 PARNASSUS AVE
SAN FRANCISCO, CA 94143
San Francisco County (415) 476-3028

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 Helena Viets's NPI number?

The NPI number for Helena Viets is 1821757576. It was assigned to this individual provider in the NPPES registry on December 9, 2021.

Where is Helena Viets located?

Helena Viets practices at 707 Parnassus Ave, San Francisco, CA 94143. The listed phone number is (415) 502-5800.

What is Helena Viets's specialty?

The primary specialty registered for this NPI is Dentist, specializing in Periodontics, with taxonomy code 1223P0300X.

When was this NPI record last updated?

The NPPES record for Helena Viets was last updated on July 22, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 29 days 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.