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

Individual provider Emergency Medicine Physician · NPI 1649212408

Arnold Yin Fai Sin, MD is an Emergency Medicine in Colton, California. Graduated from Loma Linda University School of Medicine in 1986, 40 years ago. Practices with Centinela Freeman Emergency Medical Associates Inc, an 18-clinician group and accepts Medicare assignment. Licensed in California.

Years since qualifying
40
Trained at
Loma Linda University School 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

400 N Pepper Ave
Colton, CA 92324-1801
Phone: (909) 580-1400
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Emergency Medicine Physician (primary) Taxonomy 207P00000X · Licence G60935 (CA)

Record details

NPI number1649212408
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 12, 2006
Last updated in NPPESJuly 25, 2012

Medicare enrollment

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

Medicare specialtyEMERGENCY MEDICINE
Medical schoolLOMA LINDA UNIVERSITY SCHOOL OF MEDICINE
Graduated 1986 (40 years in practice)
Group practice Centinela Freeman Emergency Medical Associates Inc — 18 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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