NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Lynn Winther, MD

Addiction Psychiatry Physician in Middletown, CT · enumerated 2006.

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

National Provider Identifier

1245206556

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Dr. Lynn Winther
Credential MD
Sex Female
Practice address 1000 Silver St., Connecticut Valley Hospital, Middletown, CT, 06457
Phone (860) 262-5868
Fax (860) 262-5850
Enumeration date Feb 27, 2006
Last updated in NPPES Oct 2, 2018

Taxonomy & licenses

2084P0800X Psychiatry Physician Allopathic & Osteopathic Physicians · License 022352 (CT) Secondary
2084P0802X Addiction Psychiatry Physician Allopathic & Osteopathic Physicians · License 121006 (NY) Primary
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.

Read the full guide → Validate an NPI →

Frequently asked questions

How do I verify Lynn Winther's NPI record?
Cross-check NPI 1245206556 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1245206556 active?
Yes, as of the latest NPPES snapshot, NPI 1245206556 is active (record last updated 2018-10-02).

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-10-02.