Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Christopher D. Frendo, DO

Orthopaedic Surgery of the Spine Physician in Commack, NY · enumerated 2006.

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

National Provider Identifier

1043390917

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Registry record

Entity type Individual (Type 1)

Name Christopher D. Frendo

Credential DO

Sex Male

Practice address 763 Larkfield Rd, Commack, NY, 11725

Phone (631) 462-2225

Fax (631) 670-2643

Enumeration date Oct 16, 2006

Last updated in NPPES Jun 25, 2013

Taxonomy & licenses

207XS0117X Orthopaedic Surgery of the Spine Physician Allopathic & Osteopathic Physicians · License 2357751 (NY) Primary

DO — Doctor of Osteopathic Medicine: A fully licensed physician trained in osteopathic medical schools, with the same practice rights as an MD. About the DO credential

Other identifiers

Identifier	Type	State	Issuer
235775-4W	Other	NY	WORKERS COMP
P4749122	Other	NY	OXFORD
1110111	Other	NY	VYTRA
235775-4W	Other	NY	NO FAULT
7780589	Other	NY	AETNA
2443569	Other	NY	UNITED HEALTHCARE

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 this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

What specialty is Christopher Frendo?

Christopher Frendo is registered in NPPES with the primary taxonomy of Orthopaedic Surgery of the Spine Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-06-25.