NPI Portal NPI Lookup & Verification

Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Arnold M Koff, MD (Dda Avon Health

Cardiovascular Disease Physician in Avon, CT · enumerated 2011 · authorized official Arnold Koff, Owner.

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

National Provider Identifier

1437436177

Verified

See something wrong? Report a correction

Registry record

Entity type Organization (Type 2)
Legal business name Arnold M Koff, MD (Dda Avon Health
Practice address 30 W Avon Rd, Suite A, Avon, CT, 06001
Phone (860) 675-6595
Fax (860) 673-6721
Enumeration date Nov 9, 2011
Last updated in NPPES Aug 25, 2016

Taxonomy & classification

207RC0000X Cardiovascular Disease Physician Allopathic & Osteopathic Physicians · License 009481 (CT) Primary
363LF0000X Family Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 002626 (CT) Secondary

Authorized official

Name Arnold Koff
Title Owner
Phone (860) 675-6595

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

Who is the authorized official for Arnold M Koff, MD (Dda Avon Health?
NPPES lists Arnold Koff (Owner) as the authorized official for this organization.
What is the NPI number for Arnold M Koff, MD (Dda Avon Health?
The NPI for Arnold M Koff, MD (Dda Avon Health is 1437436177, a Type 2 (organization) record in the CMS NPPES registry.

Providers at this address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2016-08-25.