Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Ryan Shaun Sullivan, OD
Optometrist in Annapolis, MD · enumerated 2022.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1013661198
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Registry record
Entity type Individual (Type 1)
Name Dr. Ryan Shaun Sullivan
Credential OD
Sex Male
Practice address 2321 Forest Dr, Annapolis, MD, 21401
Phone (410) 266-3369
Enumeration date Feb 8, 2022
Last updated in NPPES Feb 10, 2022
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 is the NPI number for Ryan Sullivan?
The National Provider Identifier (NPI) for Ryan Sullivan is 1013661198, a Type 1 (individual) record in the CMS NPPES registry.
Where does Ryan Sullivan practice?
The practice location on file with NPPES is in Annapolis, MD. Providers can have multiple locations; NPPES lists the primary practice address.
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-02-10.