Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Siobhan Collins, MD

MOHS-Micrographic Surgery Physician in Farmington, CT · enumerated 2006.

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

National Provider Identifier

1790888584

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Registry record

Entity type Individual (Type 1)

Name Dr. Siobhan Collins

Credential MD

Sex Female

Practice address 499 Farmington Ave, Suite 230, Farmington, CT, 06032

Phone (860) 676-1900

Fax (860) 409-0602

Enumeration date Sep 7, 2006

Last updated in NPPES Mar 6, 2012

Taxonomy & licenses

207N00000X Dermatology Physician Allopathic & Osteopathic Physicians · License 040694 (CT) Secondary

207ND0101X MOHS-Micrographic Surgery Physician Allopathic & Osteopathic Physicians · License 040694 (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
1047826	Other	CT	CIGNA
7434428	Other	CT	AETNA
P4433843	Other	CT	OXFORD
040694	Other	CT	CONNECTICARE
2458330	Other	CT	UNITED HEALTHCARE
010040694CT05	Other	CT	ANTHEM BCBS

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 Siobhan Collins?

Siobhan Collins is registered in NPPES with the primary taxonomy of MOHS-Micrographic Surgery 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.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-03-06.