Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. John Matthew Dubaz, M.D.

Pediatrics Physician in Darien, CT · enumerated 2006.

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

National Provider Identifier

1437247350

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Registry record

Entity type Individual (Type 1)

Name Dr. John Matthew Dubaz

Credential M.D.

Sex Male

Practice address 106 Noroton Ave, Darien, CT, 06820

Phone (203) 655-9741

Enumeration date Oct 10, 2006

Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

208000000X Pediatrics Physician Allopathic & Osteopathic Physicians · License 029906 (CT) 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.

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Frequently asked questions

What specialty is John Dubaz?

John Dubaz is registered in NPPES with the primary taxonomy of Pediatrics Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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.

Other providers at this practice address

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George Tsimoyianis Pediatric Adolescent Medicine Physician · Darien, CT NPI 1265519599 Denis Bouboulis Allergy & Immunology Physician · Darien, CT NPI 1619035417 Joseph Miceli Dentist · Darien, CT NPI 1558586164 Paul Gallo Dentist · Darien, CT NPI 1053536672 Middlesex Dental Group PC Dentist · Darien, CT NPI 1184849713 Ketevan Kiguradze Pediatric Dentistry · Darien, CT NPI 1588803407 Noroton Dental Associates LLC General Practice Dentistry · Darien, CT NPI 1396011920 Melissa Pulcini-Buttine Physician Assistant · Darien, CT NPI 1174946750

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