Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Brian Chien Tuai, M.D.
Surgery Physician in Oxnard, CA · enumerated 2005.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1497758569
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Registry record
Entity type Individual (Type 1)
Name Dr. Brian Chien Tuai
Credential M.D.
Sex Male
Practice address 1700 N Rose Ave, Ste 430, Oxnard, CA, 93030
Phone (805) 485-8722
Fax (805) 485-9311
Enumeration date May 23, 2005
Last updated in NPPES Aug 14, 2025
Taxonomy & licenses
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure.
About the MD credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 00A666610 | Medicaid | CA | - |
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.
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 Brian Tuai?
Brian Tuai is registered in NPPES with the primary taxonomy of Surgery Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Other providers at this practice address
Browse all → Suckchai Tulathimutte Surgery Physician · Oxnard, CA NPI 1699778712 Lisa Babashoff Surgery Physician · Oxnard, CA NPI 1568465649 Timothy Bryant Surgery Physician · Oxnard, CA NPI 1164425245 Joseph Lopresti Surgery Physician · Oxnard, CA NPI 1881697951 General Surgery Medical Group of Ventura County Surgery Physician · Oxnard, CA NPI 1275511644 St Johns Regional Imaging Center LLC Physiological Laboratory · Oxnard, CA NPI 1548225089 Timothy Oconnor Radiation Oncology Physician · Oxnard, CA NPI 1982669396 Ventura County Radiation Oncology Medical Group, Inc. Radiation Oncology Physician · Oxnard, CA NPI 1386609725
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-08-14.