Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Marcus I Barth, OPTOMOTRIST
Optometrist in Lawrenceville, NJ · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1386694321
See something wrong? Report a correction
Registry record
Entity type Individual (Type 1)
Name Dr. Marcus I Barth
Credential OPTOMOTRIST
Sex Male
Practice address 2495 Route 1, Ste. 8, Lawrenceville, NJ, 08648
Phone (609) 882-2888
Enumeration date May 11, 2006
Last updated in NPPES Jan 5, 2010
Taxonomy & licenses
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 3477401 | Medicaid | NJ | - |
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
Where does Marcus Barth practice?
The practice location on file with NPPES is in Lawrenceville, NJ. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Marcus Barth?
The National Provider Identifier (NPI) for Marcus Barth is 1386694321, a Type 1 (individual) record in the CMS NPPES registry.
Other providers at this practice address
Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-01-05.