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

Harold E Quan M D Inc

Organization Cardiovascular Disease Physician · NPI 1730290958

Harold E Quan M D Inc is a Cardiovascular Disease Physician in Newhall, California. Registered with an NPI since 2006.

In the registry since
2006
What do these letters mean?
Inc — Incorporated
A form of business registration, not a clinical qualification.

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Practice location Address checks out

23928 Lyons Ave Ste 101
Newhall, CA 91321-2409
Phone: (661) 255-8320
Fax: (661) 255-0338
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Cardiovascular Disease Physician (primary) Taxonomy 207RC0000X

Record details

NPI number1730290958
Entity typeOrganization (Type 2)
Organization subpartNo
Authorized official Carol Quan — Office Manager · (666) 255-8320
NPI enumeratedAugust 31, 2006
Last updated in NPPESFebruary 6, 2009
Mailing address23928 Lyons Ave, Suite 101, Newhall, CA 91321-2409

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