Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Dr. Robert David Blank, D.M.D.

Q: What is the NPI number for Robert Blank?

The National Provider Identifier (NPI) for Robert Blank is 1720173750, a Type 1 (individual) record in the CMS NPPES registry.

Periodontics in Shelter Island, NY · enumerated 2006.

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

National Provider Identifier

1720173750

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Dr. Robert David Blank

Credential D.M.D.

Sex Male

Practice address Shelter Island, NY, 11964

Phone (631) 749-2646

Enumeration date Oct 4, 2006

Last updated in NPPES Jul 8, 2007

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

1223P0300X Periodontics Dental Providers · License 24831 (NY) Primary

DMD · Doctor of Medicine in Dentistry: A licensed dentist; DMD and DDS are equivalent dental degrees. About the DMD 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

What is the NPI number for Robert Blank?

The National Provider Identifier (NPI) for Robert Blank is 1720173750, a Type 1 (individual) record in the CMS NPPES registry.

Where does Robert Blank practice?

The practice location on file with NPPES is in Shelter Island, NY. Providers can have multiple locations; NPPES lists the primary practice address.

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