Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Barry Frank Tilles, O.D.
Optometrist in Severna Park, MD · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1477651248
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Registry record
Entity type Individual (Type 1)
Name Dr. Barry Frank Tilles
Credential O.D.
Sex Male
Practice address 580-E Ritchie Hwy, Severna Park, MD, 21146
Phone (410) 544-7417
Fax (410) 544-4408
Enumeration date Sep 20, 2006
Last updated in NPPES Jan 28, 2015
Taxonomy & licenses
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.
Frequently asked questions
What specialty is Barry Tilles?
Barry Tilles is registered in NPPES with the primary taxonomy of 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 2015-01-28.