Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Hhc One Medical, LLC

Internal Medicine Physician in Darien, CT · enumerated 2022 · authorized official Mark Vye, Vice President.

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

National Provider Identifier

1639881956

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Registry record

Entity type Organization (Type 2)

Legal business name Hhc One Medical, LLC

Other name <Unavail>

Practice address 104 Heights Rd Ste R103, Darien, CT, 06820

Phone (888) 663-6331

Enumeration date Dec 19, 2022

Last updated in NPPES May 17, 2023

Taxonomy & classification

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians Secondary

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians Primary

Authorized official

Name Mark Vye

Title Vice President

Phone (860) 972-7858

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

Where is Hhc One Medical, LLC located?

The practice location on file with NPPES is in Darien, CT.

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2023-05-17. Verify at npiregistry.cms.hhs.gov.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-05-17.