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Dr. Derek T Tong, O.D.

Vision Therapy Optometrist in Pasadena, CA · enumerated 2006 · practices at Parkway Chiropractic.

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

National Provider Identifier

1972574614

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Registry record

Entity type Individual (Type 1)
Name Dr. Derek T Tong
Credential O.D.
Sex Male
Practice address 2700 E Foothill Blvd, Ste 207, Pasadena, CA, 91107
Phone (626) 578-9685
Fax (626) 578-9737
Enumeration date Jan 31, 2006
Last updated in NPPES Sep 1, 2016

Taxonomy & licenses

152W00000X Optometrist Eye and Vision Services Providers · License 12008T (CA) Secondary
152WV0400X Vision Therapy Optometrist Eye and Vision Services Providers · License 12008T (CA) Primary
OD · Doctor of Optometry: A licensed optometrist providing primary vision care, eye exams, and corrective lenses. About the OD 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

What specialty is Derek Tong?
Derek Tong is registered in NPPES with the primary taxonomy of Vision Therapy Optometrist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
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.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2016-09-01.