Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Diren Arsoy, MD

Orthopaedic Surgery Physician in New York, NY · enumerated 2010 · practices at 645 Medical Associates Pllc.

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

National Provider Identifier

1568773463

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Registry record

Entity type Individual (Type 1)

Name Diren Arsoy

Credential MD

Sex Male

Practice address 645 Madison Ave, 3rd & 4th Fl, New York, NY, 10022

Phone (888) 636-7840

Fax (267) 479-1321

Enumeration date Jun 24, 2010

Last updated in NPPES Jun 8, 2026

Taxonomy & licenses

207X00000X Orthopaedic Surgery Physician Allopathic & Osteopathic Physicians · License 56755 (CT) Secondary

207X00000X Orthopaedic Surgery Physician Allopathic & Osteopathic Physicians · License 55209 (MN) Secondary

207X00000X Orthopaedic Surgery Physician Allopathic & Osteopathic Physicians · License 284846 (NY) Primary

207XS0114X Adult Reconstructive Orthopaedic Surgery Physician Allopathic & Osteopathic Physicians · License 284846 (NY) Secondary

207X00000X Orthopaedic Surgery Physician Allopathic & Osteopathic Physicians · License 25MA11410700 (NJ) Secondary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

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.

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Frequently asked questions

Is NPI 1568773463 active?

Yes, as of the latest NPPES snapshot, NPI 1568773463 is active (record last updated 2026-06-08).

How do I verify Diren Arsoy's NPI record?

Cross-check NPI 1568773463 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Lawrence Chang Sports Medicine (Physical Medicine & Rehabilitation) Physician · New York, NY NPI 1780125914 Mackenzie Cooke Physician Assistant · New York, NY NPI 1659943892 645 Medical Associates Pllc Internal Medicine Physician · New York, NY NPI 1275231722

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-06-08.