Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Mr. Jeffrey Taylor Sievering, PA-C, MMS
Physician Assistant in Somers, CT · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1831253517
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Registry record
Entity type Individual (Type 1)
Name Mr. Jeffrey Taylor Sievering
Credential PA-C, MMS
Sex Male
Practice address 25 Somers Hill Cir, Somers, CT, 06071
Phone (860) 763-0349
Enumeration date Dec 20, 2006
Last updated in NPPES Mar 15, 2023
Taxonomy & licenses
363AM0700X Medical Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License 1377 (CT) Secondary
363AM0700X Medical Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License PA02128 (TX) Secondary
363A00000X Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License 1377 (CT) Primary
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
Is NPI 1831253517 active?
Yes, as of the latest NPPES snapshot, NPI 1831253517 is active (record last updated 2023-03-15).
How do I verify Jeffrey Sievering's NPI record?
Cross-check NPI 1831253517 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-03-15.