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Charles F Guardia III, M.D.

Neurology Physician in Danbury, CT · enumerated 2008.

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

National Provider Identifier

1841464641

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Registry record

Entity type Individual (Type 1)
Name Charles F Guardia III
Credential M.D.
Sex Male
Practice address 69 Sand Pit Rd, Suite 300, Danbury, CT, 06810
Phone (203) 748-2551
Enumeration date Apr 14, 2008
Last updated in NPPES Jun 28, 2014

Taxonomy & licenses

2084N0600X Clinical Neurophysiology Physician Allopathic & Osteopathic Physicians · License 52764 (CT) Secondary
2084N0400X Neurology Physician Allopathic & Osteopathic Physicians · License 52764 (CT) Primary
2084S0012X Sleep Medicine (Psychiatry & Neurology) Physician Allopathic & Osteopathic Physicians · License 52764 (CT) 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

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.
What specialty is Charles Guardia?
Charles Guardia is registered in NPPES with the primary taxonomy of Neurology Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2014-06-28.