ALAA HAJAL MD
NPI 1023831682
Internal Medicine in Diamond Bar, CA
NPI Status: Active since November 04, 2024
Contact Information
1111 GRAND AVE STE L
DIAMOND BAR, CA
ZIP 91765
Phone: (909) 551-0205
Fax: (909) 345-7084
- Organization
- Internal Medicine
About ALAA HAJAL MD
This page provides the complete NPI Profile along with additional information for Alaa Hajal Md, an internist established in Diamond Bar, California operating as a Internal Medicine. The healthcare provider is registered in the NPI registry with number 1023831682 assigned on November 2024. The practitioner's primary taxonomy code is 207R00000X. The provider is registered as an organization and their NPI record was last updated March 2025. The organization operates as a single speciality business group with one or more individual providers who practice the same area of specialization. The provider's
- NPI
- 1023831682
- Provider Legal Name
- ALAA HAJAL MD
- Other Organization Name
- Other Name Type
- (6)
- Entity Type
- Organization
- Location Address
- 1111 GRAND AVE STE L DIAMOND BAR, CA 91765
- Location Phone
- (909) 551-0205
- Location Fax
- (909) 345-7084
- Mailing Address
- 11660 CHURCH ST APT 166 RANCHO CUCAMONGA, CA 91730
- Mailing Phone
- (586) 382-5390
- Is Sole Proprietor?
- No
- Is Organization Subpart?
- No
- Enumeration Date
- 11-04-2024
- Last Update Date
- 03-26-2025
- Code Navigator
An internist like Alaa Hajal Md is a physician who has completed an internal medicine residency and is board-certified or board-eligible in an internist specialty. Internists are trained to care for adults of all ages for many different medical conditions. An internist typically monitors chronic physical conditions, identifies acute diseases, provides family planning, provides counseling about wellness and disease prevention, etc.
Location Map
Specialty - Primary Taxonomy
The NPI enumerator requires providers to submit at least one taxonomy code. A taxonomy code is a unique 10-character code that describes the healthcare provider type, classification, and the area of specialization. There could be only one primary taxonomy code per NPI record. For individual NPIs the license data is associated to the taxonomy code.
- Classification
Internal Medicine
- Taxonomy Code
- 207R00000X
- Type
- Allopathic & Osteopathic Physicians
- Taxonomy Description
- 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.
Group Taxonomy 193400000X SINGLE SPECIALTY GROUP
This provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.
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NPI Validation Check Digit Calculation
The following table explains the step by step NPI number validation process using the ISO standard Luhn algorithm.
| Start with the original NPI number, the last digit is the check digit and is not used in the calculation. | |||||||||
| 1 | 0 | 2 | 3 | 8 | 3 | 1 | 6 | 8 | 2 |
| Step 1: Double the value of the alternate digits, beginning with the rightmost digit. | |||||||||
| 2 | 0 | 4 | 3 | 16 | 3 | 2 | 6 | 16 | |
| Step 2: Add all the doubled and unaffected individual digits from step 1 plus the constant number 24. | |||||||||
| 2 + 0 + 4 + 3 + 1 + 6 + 3 + 2 + 6 + 1 + 6 + 24 = 58 | |||||||||
| Step 3: Subtract the total obtained in step 2 from the next higher number ending in zero, the result is the check digit. | |||||||||
| 60 - 58 = 2 | 2 | ||||||||
The NPI number 1023831682 is valid because the calculated check digit 2 using the Luhn validation algorithm matches the last digit of the original NPI number.
Other Providers at the Same Location
The following 2 providers are registered at the same or nearby location.
| NPI | Name / Type | Taxonomy | Address |
|---|---|---|---|
| 1942817804 | LA VISTA HEALTH Organization | Family Medicine | 1111 GRAND AVE STE L DIAMOND BAR, CA 91765 (909) 551-0205 |
| 1063890929 | MELISSA A TREVELLINE MD Individual | Family Medicine | 1111 GRAND AVE STE L DIAMOND BAR, CA 91765 (909) 551-0205 |
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1023831682, enumerated in the NPI registry as an "organization" on November 04, 2024
The provider is located at 1111 Grand Ave Ste L Diamond Bar, Ca 91765 and the phone number is (909) 551-0205
This medical organization specializes in Internal Medicine with taxonomy code 207R00000X
This NPI record was last updated on November 04, 2024. To officially update your NPI information contact the National Plan and Provider Enumeration System (NPPES) at 1-800-465-3203 (NPI Toll-Free) or by email at [email protected].
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