NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Charles Edward Witkowski Sr., DDS

Oral and Maxillofacial Surgery (Dentist) in Johnson City, TN · enumerated 2006.

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

National Provider Identifier

1588634471

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Dr. Charles Edward Witkowski Sr.
Credential DDS
Sex Male
Practice address 1021 W Oakland Ave, Suite 109, Johnson City, TN, 37604
Fax (423) 283-3044
Enumeration date Jan 24, 2006
Last updated in NPPES Mar 11, 2014

Taxonomy & licenses

1223S0112X Oral and Maxillofacial Surgery (Dentist) Dental Providers · License DS004426 (TN) Primary
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.

Read the full guide → Validate an NPI →

Frequently asked questions

Where does Charles Witkowski practice?
The practice location on file with NPPES is in Johnson City, TN. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Charles Witkowski?
The National Provider Identifier (NPI) for Charles Witkowski is 1588634471, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2014-03-11.