NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Gregory K. Wanner, DO, PA-C

Emergency Medicine Physician in Newark, DE · enumerated 2006.

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

National Provider Identifier

1689609661

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Dr. Gregory K. Wanner
Credential DO, PA-C
Sex Male
Practice address 4755 Ogletown Stanton Rd, Newark, DE, 19718
Enumeration date Jul 11, 2006
Last updated in NPPES Oct 19, 2018

Taxonomy & licenses

363A00000X Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License 25MP00150600 (NJ) Secondary
390200000X Student in an Organized Health Care Education/Training Program Student, Health Care · License OT015368 (PA) Secondary
207P00000X Emergency Medicine Physician Allopathic & Osteopathic Physicians · License C2-0011617 (DE) Primary
DO · Doctor of Osteopathic Medicine: A fully licensed physician trained in osteopathic medical schools, with the same practice rights as an MD. About the DO 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

Is NPI 1689609661 active?
Yes, as of the latest NPPES snapshot, NPI 1689609661 is active (record last updated 2018-10-19).
How do I verify Gregory Wanner's NPI record?
Cross-check NPI 1689609661 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 2018-10-19.