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ALAA HAJAL MD
NPI 1023831682
Internal Medicine in Diamond Bar, CA

Active since November 04, 2024
1111 GRAND AVE STE L, DIAMOND BAR, CA 91765(909) 551-0205(909) 345-7084 Get Directions Write a Review

NPPES record last updated: March 26, 2025. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Mar 26, 2025, Nov 4, 2024 (2 updates tracked since 2024).

About Alaa Hajal Md NPPES

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

ALAA HAJAL MD (NPI 1023831682), doing business as La Vista Medical Center, is a healthcare organization registered as an internal medicine in Diamond Bar, California and active in the NPI registry since November 2024. The organization lists Alaa Hajal, Owner, as its authorized official.

NPPES Registry Identity

NPI1023831682
Entity TypeOrganization
Primary Taxonomy207R00000X
Legal Business NameALAA HAJAL MD
Location Address1111 GRAND AVE STE LDiamond Bar, CA 91765-4172
Mailing Address11660 Church St Apt 166Rancho Cucamonga, CA 91730-8927 · (586) 382-5390
Phone(909) 551-0205
Fax(909) 345-7084
Organization SubpartNo
Authorized OfficialAlaa HajalOwner · (586) 382-5390
Enumeration DateNovember 4, 2024
Last NPPES UpdateMarch 26, 20252 updates tracked since enumeration
NPPES CertifiedMarch 26, 2025
✔ NPI 1023831682 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
1111 GRAND AVE STE L, Diamond Bar, CA 91765
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Other Names 1

Doing Business AsLa Vista Medical Center

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 2

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

MELISSA A TREVELLINE MD
Family Medicine
1111 GRAND AVE STE L
DIAMOND BAR, CA 91765
Los Angeles County (909) 551-0205
LA VISTA HEALTH
Family Medicine
1111 GRAND AVE STE L
DIAMOND BAR, CA 91765
Los Angeles County (909) 551-0205

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 Alaa Hajal MD's NPI number?

The NPI number for Alaa Hajal MD is 1023831682. It was assigned to this organization in the NPPES registry on November 4, 2024. The provider is doing business as La Vista Medical Center.

Where is Alaa Hajal MD located?

Alaa Hajal MD is located at 1111 Grand Ave Ste L, Diamond Bar, CA 91765. The listed phone number is (909) 551-0205.

What is Alaa Hajal MD's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

When was this NPI record last updated?

The NPPES record for Alaa Hajal MD was last updated on March 26, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 months 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.