Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Nicholas J Procaccini, MD

Gastroenterology Physician in Seattle, WA · enumerated 2007.

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

National Provider Identifier

1336351147

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Registry record

Entity type Individual (Type 1)

Name Nicholas J Procaccini

Credential MD

Sex Male

Practice address 1221 Madison St Ste 1220, Seattle, WA, 98104

Phone (206) 215-4250

Fax (206) 215-4252

Enumeration date May 4, 2007

Last updated in NPPES Jun 23, 2021

Taxonomy & licenses

207RG0100X Gastroenterology Physician Allopathic & Osteopathic Physicians · License MD60078001 (WA) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD 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

Where does Nicholas Procaccini practice?

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

What is the NPI number for Nicholas Procaccini?

The National Provider Identifier (NPI) for Nicholas Procaccini is 1336351147, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-06-23.