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

Individual provider Student in an Organized Health Care Education/Training Program · NPI 1962527952

Dr. Diane Ruolin Sun, MD is a Student in an Organized Health Care Education/Training Program in Hayward, California. Licensed in California and Virginia. Registered with an NPI since 2007.

Licensed in
CA, VA
In the registry since
2007
Specialties on file
2
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

27303 Sleepy Hollow Ave S
Hayward, CA 94545-4203
Phone: (510) 454-1000
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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 C55116 (CA)
Student in an Organized Health Care Education/Training Program Taxonomy 390200000X · Licence 0101247713 (VA)

Record details

NPI number1962527952
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedMarch 20, 2007
Last updated in NPPESDecember 15, 2021
Mailing address27303 Sleepy Hollow Ave S, Hayward, CA 94545-4203

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