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

Dr. Cormac Dermitt Depan, MD

Otolaryngology/Facial Plastic Surgery Physician in Worcester, MA · enumerated 2008.

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

National Provider Identifier

1588823421

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Registry record

Entity type Individual (Type 1)

Name Dr. Cormac Dermitt Depan

Credential MD

Sex Male

Practice address Worcester, MA, 01608

Phone (508) 368-3103

Enumeration date Jun 5, 2008

Last updated in NPPES Jul 6, 2011

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

Taxonomy & licenses

207YX0905X Otolaryngology/Facial Plastic Surgery Physician Allopathic & Osteopathic Physicians · License 246127 (MA) Primary

390200000X Student in an Organized Health Care Education/Training Program Student, Health Care Secondary

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

Is NPI 1588823421 active?

Yes, as of the latest NPPES snapshot, NPI 1588823421 is active (record last updated 2011-07-06).

How do I verify Cormac Depan's NPI record?

Cross-check NPI 1588823421 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-07-06.