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David I. Ruby, M.D.

Emergency Medicine Physician in Hartford, CT · enumerated 2013 · practices at Hartford Pathology Associates, P.C..

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

National Provider Identifier

1720426414

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Registry record

Entity type Individual (Type 1)
Name David I. Ruby
Credential M.D.
Sex Male
Practice address 80 Seymour Street, Hartford, CT, 06102
Phone (860) 972-0000
Enumeration date Jun 5, 2013
Last updated in NPPES May 27, 2016

Taxonomy & licenses

207P00000X Emergency Medicine Physician Allopathic & Osteopathic Physicians · License 055141 (CT) Primary
207P00000X Emergency Medicine Physician Allopathic & Osteopathic Physicians · License 255254 (MA) 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.

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Frequently asked questions

What is the NPI number for David Ruby?
The National Provider Identifier (NPI) for David Ruby is 1720426414, a Type 1 (individual) record in the CMS NPPES registry.
Where does David Ruby practice?
The practice location on file with NPPES is in Hartford, CT. Providers can have multiple locations; NPPES lists the primary practice address.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2016-05-27.