Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Stony Creek Medical Group, LLC

Internal Medicine Physician in Orange, CT · enumerated 2013 · authorized official Mayumi Deanna Young, Executive Director.

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

National Provider Identifier

1609204122

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Registry record

Entity type Organization (Type 2)

Legal business name Stony Creek Medical Group, LLC

Practice address 236 Boston Post Rd, Orange, CT, 06477

Phone (203) 815-1054

Fax (203) 298-9874

Enumeration date Oct 18, 2013

Last updated in NPPES Oct 22, 2013

Taxonomy & classification

207P00000X Emergency Medicine Physician Allopathic & Osteopathic Physicians · License 042996 (CT) Secondary

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 041818 (CT) Primary

208000000X Pediatrics Physician Allopathic & Osteopathic Physicians · License 041818 (CT) Secondary

Authorized official

Name Mayumi Deanna Young

Title Executive Director

Phone (203) 483-4580

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 Stony Creek Medical Group, LLC located?

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

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2013-10-22. Verify at npiregistry.cms.hhs.gov.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-10-22.