Alaa Hajal MD
NPI 1023831682 · Internal Medicine Physician · Diamond Bar, CA
Enrolled with Medicare as Part B Supplier - Clinic/Group Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Alaa Hajal MD is a Internal Medicine Physician organization in Diamond Bar, CA (NPI 1023831682).
Provider details
- NPI number
- 1023831682
- Entity type
- Organization
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Alaa Hajal, Owner(586) 382-5390
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
1 yr in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Other names (DBA / former)
- Doing business as
- La Vista Medical Center
Registry dates
- Enumerated
- 2024-11-04
- Last updated
- 2025-03-26
- Certified
- 2025-03-26
Frequently asked questions
- What is Alaa Hajal MD's NPI number?
- Alaa Hajal MD's National Provider Identifier (NPI) is 1023831682, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Alaa Hajal MD?
- Alaa Hajal MD is classified in the NPPES registry as Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Alaa Hajal MD located?
- Alaa Hajal MD's practice location on file with NPPES is 1111 Grand Ave Ste L, Diamond Bar, CA 91765-4172.
- What is Alaa Hajal MD's phone number?
- The practice phone number listed in the NPPES registry for Alaa Hajal MD is (909) 551-0205.
- Does Alaa Hajal MD accept Medicare?
- Alaa Hajal MD is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Who is the authorized official for Alaa Hajal MD?
- The authorized official listed on Alaa Hajal MD's NPPES record is Alaa Hajal, Owner. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Alaa Hajal MD's NPI active?
- Yes — Alaa Hajal MD's NPI (1023831682) is active in the NPPES registry as of the last update on 2025-03-26.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.