Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Dr. Arthur J Daigneault, MD

Individual provider Internal Medicine Physician · NPI 1609845361

Dr. Arthur J Daigneault, MD is an Internal Medicine in Laguna Hills, California. Graduated from University of California, Irvine, California College of Medicine in 1993, 33 years ago. Practices with Saddleback Medical Group Inc, a 28-clinician group and accepts Medicare assignment. Licensed in California.

Years since qualifying
33
Trained at
University of California, Irvine, California College of Medicine
Licensed in
CA
In the registry since
2006
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

24221 Calle De La Louisa Ste 200
Laguna Hills, CA 92653-7638
Phone: (949) 588-8700
Fax: (949) 465-8159
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence G79967 (CA)

Record details

NPI number1609845361
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMarch 15, 2006
Last updated in NPPESNovember 15, 2025
Certification dateNovember 15, 2025

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyINTERNAL MEDICINE
Medical schoolUNIVERSITY OF CALIFORNIA, IRVINE, CALIFORNIA COLLEGE OF MEDICINE
Graduated 1993 (33 years in practice)
Group practice Saddleback Medical Group Inc — 28 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations3 on file with Medicare

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