DR. VIKRAMJIT DHILLON D.O.
NPI 1528688223
Internal Medicine - Hematology in Duarte, CA

NPI Status: Active since April 22, 2020

Contact Information

1500 DUARTE RD
DUARTE, CA
ZIP 91010
Phone: (313) 966-0880

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  • Individual
  • Male
  • Internal Medicine
  • Hematology

About VIKRAMJIT DHILLON

This page provides the complete NPI Profile along with additional information for Vikramjit Dhillon, an internist established in Duarte, California with a medical specialization in Internal Medicine, focusing in hematology . The healthcare provider is registered in the NPI registry with number 1528688223 assigned on April 2020. The practitioner's primary taxonomy code is 207RH0000X with license number 20A25331 (CA). The provider is registered as an individual and his NPI record was last updated June 2026.

NPI
1528688223
Provider Name
DR. VIKRAMJIT DHILLON D.O.
Gender
Male
Entity Type
Individual
Location Address
1500 DUARTE RD DUARTE, CA 91010
Location Phone
(313) 966-0880
Mailing Address
PO BOX 512185 LOS ANGELES, CA 90051
Is Sole Proprietor?
No
Enumeration Date
04-22-2020
Last Update Date
06-03-2026
Code Navigator

An internist like Vikramjit Dhillon 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 Hematology

Taxonomy Code
207RH0000X
Type
Allopathic & Osteopathic Physicians
License No.
20A25331
License State
CA
Taxonomy Description
An internist with additional training who specializes in diseases of the blood, spleen and lymph. This specialist treats conditions such as anemia, clotting disorders, sickle cell disease, hemophilia, leukemia and lymphoma.

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)
1207RH0003XAllopathic & Osteopathic Physicians

Internal Medicine
Hematology & Oncology

20A25331 (CA)

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NPI 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 1528688223, 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
2
Doubled → 4
Pos 4
8
Unchanged
Pos 5
6
Doubled → 12 → 1 + 2
Pos 6
8
Unchanged
Pos 7
8
Doubled → 16 → 1 + 6
Pos 8
2
Unchanged
Pos 9
2
Doubled → 4
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 2 → 4 6 → 12 → 3 8 → 16 → 7 2 → 4

Step 2: Add all digits plus the NPI constant

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

2 + 5 + 4 + 8 + 1 + 2 + 8 + 1 + 6 + 2 + 4 + 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 1528688223.

Other Providers at the Same Location


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

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Dietitian, Registered
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Dietitian, Registered
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Dietitian, Registered
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Pharmacist (Oncology)
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Nurse Practitioner
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Nurse Practitioner (Pediatrics)
1500 DUARTE RD, DPS-173, ROOM 153
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Pathology (Clinical Laboratory Director, Non-physician)
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Nurse Practitioner (Adult Health)
1500 DUARTE RD
DUARTE, CA 91010
Nurse Practitioner
1500 DUARTE RD
DUARTE, CA 91010
Nurse Practitioner (Family)
1500 DUARTE RD
DUARTE, CA 91010
Internal Medicine (Hematology & Oncology)
1500 DUARTE RD
DUARTE, CA 91010
Medical Genetics (Clinical Cytogenetics)
1500 DUARTE RD
DUARTE, CA 91010
Pathology (Blood Banking & Transfusion Medicine)
1500 DUARTE RD
DUARTE, CA 91010
Pathology (Clinical Laboratory Director, Non-physician)
1500 DUARTE RD
DUARTE, CA 91010
Clinical Medical Laboratory
1500 DUARTE RD, NORTHWEST BLD., ROOM 2255
DUARTE, CA 91010
Pathology (Anatomic Pathology & Clinical Pathology)
1500 DUARTE RD
DUARTE, CA 91010
Specialist (Research Study)
1500 DUARTE RD, MOB 4TH FLOOR
DUARTE, CA 91010

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1528688223, enumerated as an "individual" on April 22, 2020.

The provider is located at 1500 DUARTE RD DUARTE, CA 91010 and the phone number is (313) 966-0880.

Internal Medicine with taxonomy code 207RH0000X and a focus in Hematology.