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HAROLD E QUAN M D INC
NPI 1730290958
Internal Medicine - Cardiovascular Disease in Newhall, CA

Active since August 31, 2006
23928 LYONS AVE, SUITE 101, NEWHALL, CA 91321(661) 255-8320(661) 255-0338 Get Directions Write a Review

NPPES record last updated: February 6, 2009. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Harold E Quan M D Inc NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

HAROLD E QUAN M D INC (NPI 1730290958) is a healthcare organization registered as a cardiovascular disease in Newhall, California and active in the NPI registry since August 2006. The organization lists Carol S Quan, Office Manager, as its authorized official.

NPPES Registry Identity

NPI1730290958
Entity TypeOrganization
Primary Taxonomy207RC0000X
Legal Business NameHAROLD E QUAN M D INC
Location Address23928 LYONS AVE, SUITE 101Newhall, CA 91321-2409
Mailing Address23928 Lyons Ave, Suite 101Newhall, CA 91321-2409 · (661) 255-8320 · Fax (661) 255-0338
Phone(661) 255-8320
Fax(661) 255-0338
Organization SubpartNo
Authorized OfficialCarol S QuanOffice Manager · (666) 255-8320
Enumeration DateAugust 31, 2006
Last NPPES UpdateFebruary 6, 2009
✔ NPI 1730290958 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Cardiovascular DiseaseAllopathic & Osteopathic Physicians
Taxonomy Code207RC0000X
Definition
An internist who specializes in diseases of the heart and blood vessels and manages complex cardiac conditions such as heart attacks and life-threatening, abnormal heartbeat rhythms.
23928 LYONS AVE, Newhall, CA 91321
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Other Identifiers 6

OtherW12999CA · Medicare Ptan
OtherDN5809Railroad Medicare Group Number
Medicare PINHW12999
OtherZZZ57676ZBlue Shield
Medicaid00A341820CA
Medicare PINW12999

Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

MR. MICHAEL C JEAN MD
Internal Medicine (Gastroenterology)
23928 LYONS AVE, SUITE 206
NEWHALL, CA 91321
Los Angeles County (661) 799-0615
HAROLD E QUAN
Internal Medicine (Cardiovascular Disease)
23928 LYONS AVE, SUITE 101
NEWHALL, CA 91321
Los Angeles County (661) 255-8321
VALLEY INFECTIONS DISEASE MEDICAL GROUP INC A MEDICAL CORPORATION
Specialist
23928 LYONS AVE, #208
NEWHALL, CA 91321
Los Angeles County (661) 255-8544
HIMANSHU V WICKRAMASINGHE MD INC
Internal Medicine (Pulmonary Disease)
23928 LYONS AVE
NEWHALL, CA 91321
Los Angeles County (661) 254-7216
SANTA CLARITA GASTROENTEROLOGY MEDICAL GROUP A PARTNERSHIP
Internal Medicine (Gastroenterology)
23928 LYONS AVE, SUITE 206
NEWHALL, CA 91321
Los Angeles County (661) 799-0615
STEVEN HARVEY BARON MD PHD
Internal Medicine (Endocrinology, Diabetes & Metabolism)
23928 LYONS AVE, #107
NEWHALL, CA 91321
Los Angeles County (661) 254-2220
WENDY GLASGOW CLOUGH M.D.
Internal Medicine (Infectious Disease)
23928 LYONS AVE, 208
NEWHALL, CA 91321
Los Angeles County (661) 255-8544
ANGELICA TORRES
Nurse Practitioner (Family)
23928 LYONS AVE
NEWHALL, CA 91321
Los Angeles County (661) 222-2300

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Harold E Quan M D Inc's NPI number?

The NPI number for Harold E Quan M D Inc is 1730290958. It was assigned to this organization in the NPPES registry on August 31, 2006.

Where is Harold E Quan M D Inc located?

Harold E Quan M D Inc is located at 23928 Lyons Ave Suite 101, Newhall, CA 91321. The listed phone number is (661) 255-8320.

What is Harold E Quan M D Inc's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Cardiovascular Disease, with taxonomy code 207RC0000X.

When was this NPI record last updated?

The NPPES record for Harold E Quan M D Inc was last updated on February 6, 2009. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.