Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Alisa Sue Siegfeld, M.D.

Diagnostic Radiology Physician in Glastonbury, CT · enumerated 2006 · practices at Mandell & Blau, MD'S PC.

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

National Provider Identifier

1942260641

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Registry record

Entity type Individual (Type 1)

Name Alisa Sue Siegfeld

Credential M.D.

Sex Female

Practice address 124 Hebron Ave Ste 1b, Glastonbury, CT, 06033

Phone (860) 633-8806

Fax (860) 657-3788

Enumeration date Mar 25, 2006

Last updated in NPPES Jul 18, 2018

Taxonomy & licenses

2085R0202X Diagnostic Radiology Physician Allopathic & Osteopathic Physicians · License 33544 (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
010033544CT12	Other	CT	ANTHEM BC/BS
300101740	Other	CT	RAILROAD MEDICARE
300117749	Other	CT	RAILROAD MEDICARE
300117771	Other	CT	RAILROAD MEDICARE
010033544CT14	Other	CT	ANTHEM BC/BS
010033544CT06	Other	CT	ANTHEM BC/BS
010033544CT08	Other	CT	ANTHEM BC/BS
300117754	Other	CT	RAILROAD MEDICARE
001335448	Medicaid	CT	-
010033544CT03	Other	CT	ANTHEM BC/BS
010033544CT13	Other	CT	ANTHEM BC/BS
300110158	Other	CT	RAILROAD MEDICARE

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 Alisa Siegfeld?

Alisa Siegfeld 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 →

Neal Barkoff Diagnostic Radiology Physician · Glastonbury, CT NPI 1669431904 Richard Glisson Diagnostic Radiology Physician · Glastonbury, CT NPI 1376503003 Mandell & Blau, MD'S PC Diagnostic Radiology Physician · Glastonbury, CT NPI 1679776835

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-07-18.