Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Steven C Shifreen, MD

General Practice Physician in Hartford, CT · enumerated 2006.

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

National Provider Identifier

1871663328

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Registry record

Entity type Individual (Type 1)

Name Steven C Shifreen

Credential MD

Sex Male

Practice address 645 Farmington Ave, Hartford, CT, 06105

Phone (860) 570-3400

Fax (860) 570-0750

Enumeration date Nov 9, 2006

Last updated in NPPES May 23, 2011

Taxonomy & licenses

208D00000X General Practice Physician Allopathic & Osteopathic Physicians · License 025728 (CT) Primary

225100000X Physical Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License 025728 (CT) Secondary

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
001257286	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.

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Frequently asked questions

How do I verify Steven Shifreen's NPI record?

Cross-check NPI 1871663328 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1871663328 active?

Yes, as of the latest NPPES snapshot, NPI 1871663328 is active (record last updated 2011-05-23).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-05-23.