Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Dr. Robert W Zembroski, DC, DACNB

Neurology Chiropractor in Darien, CT · enumerated 2006.

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

National Provider Identifier

1780743799

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Registry record

Entity type Individual (Type 1)

Name Dr. Robert W Zembroski

Credential DC, DACNB

Sex Male

Practice address Darien, CT, 06820

Phone (203) 655-4494

Fax (203) 655-7577

Enumeration date Dec 6, 2006

Last updated in NPPES Apr 30, 2008

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

111NN0400X Neurology Chiropractor Chiropractic Providers · License 1043 (CT) Primary

DC · Doctor of Chiropractic: A licensed chiropractor focusing on musculoskeletal and nervous system disorders. About the DC credential

Other identifiers

Identifier	Type	State	Issuer
P2011910	Other	CT	OXFORD PROVIDER NUMBER
050001043CT01	Other	CT	BLUE CROSS PROVIDER NO.
X0E442	Other	CT	EMPIRE BLUE CROSS BLUE SHIELD
0007798133	Other	CT	AETNA PROVIDER NUMBER
757285	Other	CT	CONNECTICARE PROVIDER NO.

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

Is NPI 1780743799 active?

Yes, as of the latest NPPES snapshot, NPI 1780743799 is active (record last updated 2008-04-30).

How do I verify Robert Zembroski's NPI record?

Cross-check NPI 1780743799 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-04-30.