Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Calvin Khoa Tran, OTR/L

Occupational Therapist in San Francisco, CA · enumerated 2019.

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

National Provider Identifier

1205490158

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Registry record

Entity type Individual (Type 1)

Name Calvin Khoa Tran

Credential OTR/L

Sex Male

Practice address 2043 19th Ave, San Francisco, CA, 94116

Phone (415) 661-8787

Enumeration date Apr 25, 2019

Last updated in NPPES Apr 25, 2019

Taxonomy & licenses

225X00000X Occupational Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License 18226 (CA) Primary

Other identifiers

Identifier	Type	State	Issuer
0011485974	Other	CA	KAISER

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 specialty is Calvin Tran?

Calvin Tran is registered in NPPES with the primary taxonomy of Occupational Therapist. 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 2019-04-25.