NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Joseph Michael Knapp, DO

Obstetrics & Gynecology Physician in Newark, DE · enumerated 2006.

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

National Provider Identifier

1154372084

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Dr. Joseph Michael Knapp
Credential DO
Sex Male
Practice address 1400 Peoples Plz Ste 301, Newark, DE, 19702
Fax (443) 553-1398
Enumeration date May 15, 2006
Last updated in NPPES Jul 26, 2021

Taxonomy & licenses

207V00000X Obstetrics & Gynecology Physician Allopathic & Osteopathic Physicians · License H0057801 (MD) 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

Other identifiers

Identifier Type State Issuer
4056337 00 Medicaid MD -
4056337 01 Medicaid MD -

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

What is the NPI number for Joseph Knapp?
The National Provider Identifier (NPI) for Joseph Knapp is 1154372084, a Type 1 (individual) record in the CMS NPPES registry.
Where does Joseph Knapp practice?
The practice location on file with NPPES is in Newark, DE. 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 2021-07-26.