Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Geoffrey L Manton, MD

Diagnostic Radiology Physician in Southbury, CT · enumerated 2006 · practices at Diagnostic Imaging of Southbury.

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

National Provider Identifier

1538249065

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Geoffrey L Manton

Credential MD

Sex Male

Practice address 385 Main St South, Union Square, Southbury, CT, 06488

Phone (203) 264-7999

Fax (203) 264-7477

Enumeration date Oct 17, 2006

Last updated in NPPES Jun 17, 2021

Taxonomy & licenses

2085B0100X Body Imaging Physician Allopathic & Osteopathic Physicians · License 043995 (CT) Secondary

2085N0904X Nuclear Radiology Physician Allopathic & Osteopathic Physicians · License 043995 (CT) Secondary

2085R0202X Diagnostic Radiology Physician Allopathic & Osteopathic Physicians · License 043995 (CT) Primary

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

Other identifiers

Identifier	Type	State	Issuer
001439951	Medicaid	CT	-

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 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 Geoffrey Manton?

Geoffrey Manton is registered in NPPES with the primary taxonomy of Diagnostic Radiology Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-06-17.