Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Roger Gale Williams II, DC
Chiropractor in Johnson City, TN · enumerated 2020.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1790385888
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Registry record
Entity type Individual (Type 1)
Name Dr. Roger Gale Williams II
Credential DC
Sex Male
Practice address 121 N Commerce St Ste 212, Johnson City, TN, 37604
Phone (423) 220-6039
Enumeration date Oct 28, 2020
Last updated in NPPES Oct 28, 2020
Taxonomy & licenses
DC · Doctor of Chiropractic: A licensed chiropractor focusing on musculoskeletal and nervous system disorders.
About the DC 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
What is the NPI number for Roger Williams?
The National Provider Identifier (NPI) for Roger Williams is 1790385888, a Type 1 (individual) record in the CMS NPPES registry.
Where does Roger Williams practice?
The practice location on file with NPPES is in Johnson City, TN. Providers can have multiple locations; NPPES lists the primary practice address.
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-10-28.