Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Mr. James Patrick Wittstock, PA-C
Physician Assistant in Greeley, CO · enumerated 2007.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1164632378
See something wrong? Report a correction
Registry record
Entity type Individual (Type 1)
Name Mr. James Patrick Wittstock
Credential PA-C
Sex Male
Practice address 2200 O St, Greeley, CO, 80631
Phone (970) 304-6235
Fax (970) 304-6241
Enumeration date May 23, 2007
Last updated in NPPES Jul 8, 2007
Taxonomy & licenses
363A00000X Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License 1010 (CO) Primary
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 James Wittstock?
The National Provider Identifier (NPI) for James Wittstock is 1164632378, a Type 1 (individual) record in the CMS NPPES registry.
Where does James Wittstock practice?
The practice location on file with NPPES is in Greeley, CO. Providers can have multiple locations; NPPES lists the primary practice address.
Other providers at this practice address
Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.