Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Stephen L. Walker, DDS, MS
Endodontics in Mesa, AZ · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1720166499
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Registry record
Entity type Individual (Type 1)
Name Dr. Stephen L. Walker
Credential DDS, MS
Sex Male
Practice address 2220 W Southern Ave, 102, Mesa, AZ, 85202
Phone (480) 834-7100
Fax (480) 833-3134
Enumeration date Nov 1, 2006
Last updated in NPPES Dec 4, 2013
Taxonomy & licenses
DDS — Doctor of Dental Surgery: A licensed dentist; DDS and DMD are equivalent dental degrees.
About the DDS 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
Is NPI 1720166499 active?
Yes — as of the latest NPPES snapshot, NPI 1720166499 is active (record last updated 2013-12-04).
How do I verify Stephen Walker's NPI record?
Cross-check NPI 1720166499 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Other providers at this practice address
Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-12-04.