Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Zeynep Ulku DDS Dmsc PC

Q: What type of organization is Zeynep Ulku DDS Dmsc PC?

Zeynep Ulku DDS Dmsc PC is registered in NPPES as a Orthodontics and Dentofacial Orthopedics Dentistry (its primary provider taxonomy).

Orthodontics and Dentofacial Orthopedics Dentistry in Deer Park, NY · enumerated 2017 · authorized official Rohan Yalcinkaya, Office Manager.

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

National Provider Identifier

1407395973

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Registry record

Entity type Organization (Type 2)

Legal business name Zeynep Ulku DDS Dmsc PC

Practice address 1644 Deer Park Ave, Suite 1, Deer Park, NY, 11729

Phone (631) 992-7155

Fax (631) 667-1872

Enumeration date Feb 16, 2017

Last updated in NPPES Feb 16, 2017

Taxonomy & classification

1223X0400X Orthodontics and Dentofacial Orthopedics Dentistry Dental Providers · License 057836 (NY) Primary

Authorized official

Name Rohan Yalcinkaya

Title Office Manager

Phone (631) 992-7155

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

What type of organization is Zeynep Ulku DDS Dmsc PC?

Zeynep Ulku DDS Dmsc PC is registered in NPPES as a Orthodontics and Dentofacial Orthopedics Dentistry (its primary provider taxonomy).

What is a Type 2 NPI?

A Type 2 NPI identifies an organization (group practice, hospital, pharmacy, lab), while Type 1 NPIs identify individual providers. Organizations bill under their Type 2 NPI.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2017-02-16.