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

Dr. Patrick S Chang, MD

Individual provider Internal Medicine Physician · NPI 1861467656

Dr. Patrick S Chang, MD is an Internal Medicine Physician in Mather, California. Licensed in Arizona. Registered with an NPI since 2006.

Licensed in
AZ
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

10535 Hospital Way
Mather, CA 95655-4200
Phone: (916) 843-7000
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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 21908 (AZ)

Record details

NPI number1861467656
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedFebruary 23, 2006
Last updated in NPPESDecember 26, 2025
Certification dateDecember 26, 2025
Mailing address10535 Hospital Way, Mather, CA 95655-4200

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