Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 30 days.

AREN EBRAHIMI DO
NPI 1548880503
Internal Medicine - Medical Oncology in La Jolla, CA

Active since April 20, 2020
10666 N TORREY PINES RD, LA JOLLA, CA 92037(858) 554-3200 Get Directions Write a Review

NPPES record last updated: July 14, 2026. Verified against the NPPES registry weekly; last sync: July 19, 2026.

Record update history: Jul 14, 2026, Apr 20, 2020 (2 updates tracked since 2020).

  • Individual
  • Male
  • Internal Medicine
  • Medical Oncology

About AREN EBRAHIMI

This page provides the complete NPI Profile along with additional information for Aren Ebrahimi, an internist established in La Jolla, California with a medical specialization in Internal Medicine, focusing in medical oncology . The healthcare provider is registered in the NPI registry with number 1548880503 assigned on April 2020. The practitioner's primary taxonomy code is 207RX0202X with license number 70113878 (WA). The provider is registered as an individual and his NPI record was last updated July 2026.

NPI
1548880503
Provider Name
AREN EBRAHIMI DO
Gender
Male
Entity Type
Individual
Location Address
10666 N TORREY PINES RD LA JOLLA, CA 92037
Location Phone
(858) 554-3200
Mailing Address
10790 RANCHO BERNARDO RD # 4S-205 SAN DIEGO, CA 92127
Mailing Phone
(858) 554-3200
Is Sole Proprietor?
No
Enumeration Date
04-20-2020
Last Update Date
07-14-2026
Code Navigator

An internist like Aren Ebrahimi 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 Medical Oncology

Taxonomy Code
207RX0202X
Type
Allopathic & Osteopathic Physicians
License No.
70113878
License State
WA
Taxonomy Description
An internist who specializes in the diagnosis and treatment of all types of cancer and other benign and malignant tumors. This specialist decides on and administers therapy for these malignancies as well as consults with surgeons and radiotherapists on other treatments for cancer.

Secondary Taxonomies

The provider has reported to the NPI enumerator additional taxonomy codes. Multiple taxonomy codes may represent subspecialties or other areas of specialization the provider maybe licensed to practice.

No. Taxonomy Code Type Classification /
Specialization
License No. (State)
1207R00000XAllopathic & Osteopathic Physicians

Internal Medicine

70113878 (WA)

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NPI Number Validation

How NPI Validation Works

The NPI validation process uses the ISO-standard Luhn algorithm, a mathematical "handshake", to ensure that a provider's 10-digit ID is authentic and free of common typing errors.

To verify the NPI 1548880503, we treat the final digit (3) as the Check Digit—the target answer we need to reach. The process begins by taking the first nine digits and adding a constant value of 24, which accounts for the "80840" prefix required for all U.S. health identifiers. We then double every other digit starting from the right and sum the individual digits of those results together. For this specific NPI, that total comes to 67. The final step is to find the difference between that total and the next multiple of ten (70 - 67 = 3).

Digit-by-digit view

Use the first nine digits for the calculation. Starting from the right, double every other digit. The last digit is the check digit and is not part of the calculation.

Pos 1
1
Doubled → 2
Pos 2
5
Unchanged
Pos 3
4
Doubled → 8
Pos 4
8
Unchanged
Pos 5
8
Doubled → 16 → 1 + 6
Pos 6
8
Unchanged
Pos 7
0
Doubled → 0
Pos 8
5
Unchanged
Pos 9
0
Doubled → 0
Check
3
Target digit
Regular digit Doubled digit Check digit

Step 1: Double every other digit from the right

Starting with the rightmost digit of the first nine digits, double every other value. If doubling creates a two-digit number, add those digits together.

1 → 2 4 → 8 8 → 16 → 7 0 → 0 0 → 0

Step 2: Add all digits plus the NPI constant

Add the transformed values, the unchanged digits, and the constant 24.

2 + 5 + 8 + 8 + 1 + 6 + 8 + 0 + 5 + 0 + 24 = 67

Step 3: Find the amount needed to reach the next multiple of 10

The next multiple of ten after 67 is 70. The difference is the calculated check digit.

70 - 67 = 3
This NPI is valid
The calculated check digit is 3, which matches the last digit of 1548880503.

Other Providers at the Same Location


The following 20 providers are registered at the same or a nearby location.

Ophthalmology
10666 N TORREY PINES RD, SCMG DIVISION OF OPHTHALMOLOGY
LA JOLLA, CA 92037
Clinic/Center (Multi-Specialty)
10666 N TORREY PINES RD
LA JOLLA, CA 92037
Internal Medicine
10666 N TORREY PINES RD
LA JOLLA, CA 92037
Radiology (Diagnostic Radiology)
10666 N TORREY PINES RD
LA JOLLA, CA 92037
Internal Medicine
10666 N TORREY PINES RD
LA JOLLA, CA 92037
Pathology (Anatomic Pathology & Clinical Pathology)
10666 N TORREY PINES RD
LA JOLLA, CA 92037
Physician Assistant
10666 N TORREY PINES RD
LA JOLLA, CA 92037
Internal Medicine (Nephrology)
10666 N TORREY PINES RD
LA JOLLA, CA 92037
Internal Medicine (Geriatric Medicine)
10666 N TORREY PINES RD
LA JOLLA, CA 92037
Nurse Practitioner
10666 N TORREY PINES RD
LA JOLLA, CA 92037
Psychiatry & Neurology (Neurology)
10666 N TORREY PINES RD
LA JOLLA, CA 92037
Nurse Practitioner
10666 N TORREY PINES RD
LA JOLLA, CA 92037
Internal Medicine
10666 N TORREY PINES RD
LA JOLLA, CA 92037
Orthopaedic Surgery
10666 N TORREY PINES RD
LA JOLLA, CA 92037
Internal Medicine (Hematology & Oncology)
10666 N TORREY PINES RD
LA JOLLA, CA 92037
Emergency Medicine
10666 N TORREY PINES RD
LA JOLLA, CA 92037
Internal Medicine (Nephrology)
10666 N TORREY PINES RD
LA JOLLA, CA 92037
Physician Assistant
10666 N TORREY PINES RD
LA JOLLA, CA 92037
Nurse Practitioner
10666 N TORREY PINES RD
LA JOLLA, CA 92037
Orthopaedic Surgery
10666 N TORREY PINES RD
LA JOLLA, CA 92037

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1548880503, enumerated as an "individual" on April 20, 2020.

The provider is located at 10666 N TORREY PINES RD LA JOLLA, CA 92037 and the phone number is (858) 554-3200.

Internal Medicine with taxonomy code 207RX0202X and a focus in Medical Oncology.