NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Dr. Paul Nenner, O.D.

Occupational Vision Optometrist in Baltimore, MD · enumerated 2007.

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

National Provider Identifier

1013057728

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Dr. Paul Nenner
Credential O.D.
Sex Male
Practice address Baltimore, MD, 21206
Phone (410) 488-6800
Fax (410) 488-4270
Enumeration date Feb 8, 2007
Last updated in NPPES Sep 11, 2025

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

152W00000X Optometrist Eye and Vision Services Providers · License TA0780 (MD) Secondary
152WC0802X Corneal and Contact Management Optometrist Eye and Vision Services Providers · License TA0780 (MD) Secondary
152WP0200X Pediatric Optometrist Eye and Vision Services Providers · License TA0780 (MD) Secondary
152WS0006X Sports Vision Optometrist Eye and Vision Services Providers · License TA0780 (MD) Secondary
152WX0102X Occupational Vision Optometrist Eye and Vision Services Providers · License TA0780 (MD) Primary
OD · Doctor of Optometry: A licensed optometrist providing primary vision care, eye exams, and corrective lenses. About the OD credential

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

What specialty is Paul Nenner?
Paul Nenner is registered in NPPES with the primary taxonomy of Occupational Vision Optometrist. 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.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-09-11.