Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Vivian Viera, MD, Plc

Legal Medicine in Norman, OK · enumerated 2009 · authorized official Vivian Viera, Owner.

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

National Provider Identifier

1831332956

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Registry record

Entity type Organization (Type 2)

Legal business name Vivian Viera, MD, Plc

Practice address 900 N Porter Ave, Suite 105, Norman, OK, 73071

Phone (405) 310-4422

Fax (405) 310-4424

Enumeration date Apr 20, 2009

Last updated in NPPES Mar 10, 2010

Taxonomy & classification

173000000X Legal Medicine Other Service Providers · License 18676 (OK) Primary

Authorized official

Name Vivian Viera

Title Owner

Phone (405) 310-4422

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

Where is Vivian Viera, MD, Plc located?

The practice location on file with NPPES is in Norman, OK.

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2010-03-10. Verify at npiregistry.cms.hhs.gov.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-03-10.