Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Ms. Martha L Barnes
Interpreter in Oak Lawn, IL · enumerated 2007.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1386868842
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Registry record
Entity type Individual (Type 1)
Name Ms. Martha L Barnes
Sex Female
Practice address 5120 Oak Center Dr, Oak Lawn, IL, 60453
Phone (708) 229-8641
Fax (708) 229-8641
Enumeration date Apr 13, 2007
Last updated in NPPES Feb 2, 2008
Taxonomy & licenses
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
What specialty is Martha Barnes?
Martha Barnes is registered in NPPES with the primary taxonomy of Interpreter. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
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.
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-02-02.