Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Harold Norman Gruber, DPM

Podiatrist in Wilmington, DE · enumerated 2006.

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

National Provider Identifier

1386734143

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Harold Norman Gruber

Credential DPM

Sex Male

Practice address 2018 Naamans Rd, Wilmington, DE, 19810

Phone (302) 266-9166

Enumeration date Oct 13, 2006

Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

213E00000X Podiatrist Podiatric Medicine & Surgery Service Providers · License EI-0000156 (DE) Primary

DPM · Doctor of Podiatric Medicine: A physician specializing in medical and surgical care of the foot and ankle. About the DPM 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 this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

What specialty is Harold Gruber?

Harold Gruber is registered in NPPES with the primary taxonomy of Podiatrist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.