NPI Portal NPI Lookup & Verification

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

Dr. Adam Craig Sydell, D.M.D

Dentist in Dover, DE · enumerated 2008 · practices at Mercer Dental Associates.

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

National Provider Identifier

1841467586

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Registry record

Entity type Individual (Type 1)
Name Dr. Adam Craig Sydell
Credential D.M.D
Sex Male
Practice address Dover, DE, 19904
Phone (302) 678-2942
Fax (302) 678-2294
Enumeration date May 12, 2008
Last updated in NPPES Feb 18, 2020

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

Taxonomy & licenses

390200000X Student in an Organized Health Care Education/Training Program Student, Health Care · License 100123785 (SC) Secondary
122300000X Dentist Dental Providers · License G1-0001281 (DE) Primary
DMD · Doctor of Medicine in Dentistry: A licensed dentist; DMD and DDS are equivalent dental degrees. About the DMD 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.

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Frequently asked questions

How do I verify Adam Sydell's NPI record?
Cross-check NPI 1841467586 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1841467586 active?
Yes, as of the latest NPPES snapshot, NPI 1841467586 is active (record last updated 2020-02-18).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-02-18.