OrthodontistIndex

Dr. Ron Hassanzadeh, PC

Orthodontic practice in San Ramon, CA

Registered orthodontist

Call (925) 458-7811Send a messageMap ↗

Public-record details

Address
2355 San Ramon Valley Blvd Ste 105, San Ramon, CA 94583
Phone
(925) 458-7811
Listed under
Orthodontic practices
NPI
1326893355
NPI status
Active in the NPPES registry
Provider type
Organization (practice, clinic or company)
Registered specialty (self-reported taxonomy)
Orthodontics and Dentofacial Orthopedics (1223X0400X)
Authorized official
Mehran Hassanzadeh, DMD, Ceo
NPI first issued
Apr 22, 2024
NPI record last updated
Apr 22, 2024

NPI 1326893355 is active in the federal NPPES registry (CMS) with Orthodontics and Dentofacial Orthopedics, an ADA-recognized dental specialty, as its primary taxonomy. Source: NPPES NPI Registry (CMS) (record). Data as of 2026-09-30.

What these registry facts mean

The NPI (National Provider Identifier) is the federal ID every HIPAA-covered provider uses to bill insurance. This NPI belongs to an organization, so it may cover several clinicians at this location. The specialty is the taxonomy the provider chose when registering; NPPES does not check it. A license number here is what the provider entered — confirm it with the state board before you rely on it. Orthodontists are dentists who completed an accredited orthodontic residency after dental school. General dentists can also offer braces or aligners, but they are not listed here.

View NPI 1326893355 in the official registry ↗

Checking credentials: the specialty shown is the one this provider registered with the NPI system. Your state dental board's license lookup confirms the license, and the American Board of Orthodontics lists board-certified orthodontists.

Other orthodontists in San Ramon

Jesus I. Patino Jr., DDS, Ms, INC9301 Fircrest Ln Ste 1 · San Ramon, CA 94583 · (925) 828-6972 · Orthodontic practicesRegistered specialty: Orthodontics · PracticeRegistered orthodontistMarzieh Karkhanechi, DDS12677 Alcosta Blvd Ste 575 · San Ramon, CA 94583 · (415) 612-0256 · Individual orthodontistsRegistered specialty: OrthodonticsRegistered orthodontistLicense # listed (CA)Mehran Hassanzadeh, DMD2355 San Ramon Valley Blvd Ste 105 · San Ramon, CA 94583 · (925) 452-7811 · Individual orthodontistsRegistered specialty: OrthodonticsRegistered orthodontistLicense # listed (CA)Dr. Sandy Bigman525 Bollinger Canyon Way Ste 102 · San Ramon, CA 94582 · (925) 735-1515 · Orthodontic practicesRegistered specialty: Orthodontics · PracticeRegistered orthodontistLicense # listed (CA)Harry Van Den Berg, DDS1501 Bollinger Canyon Rd Ste a · San Ramon, CA 94583 · (925) 838-0665 · Individual orthodontistsRegistered specialty: OrthodonticsRegistered orthodontistLicense # listed (CA)Jesus Patino, DDS, MS9301 Fircrest Ln Ste 1 · San Ramon, CA 94583 · (925) 828-6972 · Individual orthodontistsRegistered specialty: OrthodonticsRegistered orthodontistLicense # listed (CA)Melissa Bailey11040 Bollinger Canyon Rd Ste K · San Ramon, CA 94582 · (925) 648-8588 · Individual orthodontistsRegistered specialty: OrthodonticsRegistered orthodontistLicense # listed (CA)Arash Abolfazlian, DDS, MSD111 Deerwood Rd · San Ramon, CA 94583 · (925) 230-2966 · Individual orthodontistsRegistered specialty: OrthodonticsRegistered orthodontistLicense # listed (CA)

All 12 in San Ramon →