NPI Portal NPI Lookup & Verification

Mr. James Canfield Jr.

Mr. James Canfield Jr. is a Pulmonary Function Technologist provider (Pulmonary Function Technologist) practicing in Palo Alto, CA, registered in the NPPES registry with NPI 1790704476 since 2006.

✓ Active NPI ✓ Valid NPI checksum Sole proprietor

NPI 1790704476
Entity type Individual (Type 1)
Name Mr. James Canfield Jr.
Sex Male
Practice address Palo Alto, CA, 94304
Phone 6504935000
Enumeration date 2006-07-19
Last updated in NPPES 2007-07-08

Street address withheld — NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

Taxonomy code Specialty Primary License State
225B00000X Pulmonary Function Technologist Primary
Copy-ready billing details
Provider: James Canfield
NPI: 1790704476
Taxonomy: 225B00000X (Pulmonary Function Technologist)
Address: Palo Alto, CA, 94304

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1821914136 Vivian Lee Individual Continuing Education/Staff Development Registered Nurse Palo Alto, CA
1962405449 John Lavelle Individual Urology Physician Palo Alto, CA
1649270620 Dennis Hum Individual Foot & Ankle Surgery Podiatrist Palo Alto, CA
1295723559 Arlina Ahluwalia Individual Internal Medicine Physician Palo Alto, CA
1922099829 Ina Rhee Individual Medical Oncology Physician Palo Alto, CA
1235111402 Neelam Mohapatra Individual Internal Medicine Physician Palo Alto, CA
1518941400 Lawrence Onyejekwe Individual Family Medicine Physician Palo Alto, CA
1295711877 Robert Oh Individual Sports Medicine (Family Medicine) Physician Palo Alto, CA

Verify this record

Cross-check NPI 1790704476 against the authoritative CMS record: view Mr. James Canfield Jr. on the official NPPES registry .

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 or validate an NPI number.

Frequently asked questions

What specialty is James Canfield?
James Canfield is registered in NPPES with the primary taxonomy of Pulmonary Function Technologist. 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.

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2007-07-08.