Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Roger W Mcwilliams, DMD
Dentist in Hanover, NH · enumerated 2005.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1164422721
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Registry record
Entity type Individual (Type 1)
Name Dr. Roger W Mcwilliams
Credential DMD
Sex Male
Practice address 71 Lyme Rd, Hanover, NH, 03755
Phone (603) 643-3104
Fax (603) 643-0241
Enumeration date Jul 26, 2005
Last updated in NPPES Jul 13, 2026
Taxonomy & licenses
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.
Frequently asked questions
Is NPI 1164422721 active?
Yes, as of the latest NPPES snapshot, NPI 1164422721 is active (record last updated 2026-07-13).
How do I verify Roger Mcwilliams's NPI record?
Cross-check NPI 1164422721 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 → Paul Wonsavage General Practice Dentistry · Hanover, NH NPI 1497888481 Jeanine Mcdonald General Practice Dentistry · Hanover, NH NPI 1346450210 Mcwilliams and Wonsavage Dentistry Partnership General Practice Dentistry · Hanover, NH NPI 1376712828 Upper Valley Dental Sleep Center, Pllc Durable Medical Equipment & Medical Supplies · Hanover, NH NPI 1699462333
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-07-13.