Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Mrs. Callia Anastacia Twigg, O.D
Optometrist in Severna Park, MD · enumerated 2023.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1598441172
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Registry record
Entity type Individual (Type 1)
Name Mrs. Callia Anastacia Twigg
Credential O.D
Sex Female
Practice address 489 Ritchie Hwy Ste 200, Severna Park, MD, 21146
Phone (410) 975-0090
Enumeration date Jun 27, 2023
Last updated in NPPES Nov 4, 2024
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
How do I verify Callia Twigg's NPI record?
Cross-check NPI 1598441172 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1598441172 active?
Yes, as of the latest NPPES snapshot, NPI 1598441172 is active (record last updated 2024-11-04).
Other providers at this practice address
Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-11-04.