RAJEEV RATAN TREHAN MBBS, MD, MPH
NPI 1841254703
Psychiatry & Neurology - Neurology in Topeka, KS
NPI Status: Active since April 16, 2006
Contact Information
2200 SW GAGE BLVD
VA MEDICAL CENTER
TOPEKA, KS
ZIP 66622
Phone: (785) 350-4308
- Individual
- Male
- Psychiatry & Neurology
- Neurology
About RAJEEV TREHAN
This page provides the complete NPI Profile along with additional information for Rajeev Trehan, a provider established in Topeka, Kansas with a medical specialization in Psychiatry & Neurology, focusing in neurology . The healthcare provider is registered in the NPI registry with number 1841254703 assigned on April 2006. The practitioner's primary taxonomy code is 2084N0400X with license number 025811 (CT). The provider is registered as an individual and his NPI record was last updated one year ago.
- NPI
- 1841254703
- Provider Name
- RAJEEV RATAN TREHAN MBBS, MD, MPH
- Gender
- Male
- Entity Type
- Individual
- Location Address
- 2200 SW GAGE BLVD VA MEDICAL CENTER TOPEKA, KS 66622
- Location Phone
- (785) 350-4308
- Mailing Address
- 4809 INNSBROOK DR LAWRENCE, KS 66047
- Mailing Phone
- (785) 856-2813
- Mailing Fax
- Is Sole Proprietor?
- Yes
- Enumeration Date
- 04-16-2006
- Last Update Date
- 09-11-2025
- Code Navigator
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
Psychiatry & Neurology Neurology
- Taxonomy Code
- 2084N0400X
- Type
- Allopathic & Osteopathic Physicians
- License No.
- 025811
- License State
- CT
- Taxonomy Description
- A Neurologist specializes in the diagnosis and treatment of diseases or impaired function of the brain, spinal cord, peripheral nerves, muscles, autonomic nervous system, and blood vessels that relate to these structures.
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) |
|---|---|---|---|---|
| 1 | 2084N0400X | Allopathic & Osteopathic Physicians | Psychiatry & Neurology | D28483 (MD) |
| 2 | 2084N0400X | Allopathic & Osteopathic Physicians | Psychiatry & Neurology | 045621 (MI) |
| 3 | 2084N0400X | Allopathic & Osteopathic Physicians | Psychiatry & Neurology | 036068498 (IL) |
| 4 | 2084P0800X | Allopathic & Osteopathic Physicians | Psychiatry & Neurology | D28483 (MD) |
| 5 | 2084P0800X | Allopathic & Osteopathic Physicians | Psychiatry & Neurology | 045621 (MI) |
| 6 | 2084P0800X | Allopathic & Osteopathic Physicians | Psychiatry & Neurology | 036068498 (IL) |
| 7 | 2084P0800X | Allopathic & Osteopathic Physicians | Psychiatry & Neurology | 025811 (CT) |
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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 1841254703, 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.
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.
Step 2: Add all digits plus the NPI constant
Add the transformed values, the unchanged digits, and the constant 24.
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.
Other Providers at the Same Location
The following 20 providers are registered at the same or a nearby location.
TOPEKA, KS 66622
TOPEKA, KS 66622
TOPEKA, KS 66622
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1841254703, enumerated as an "individual" on April 16, 2006.
The provider is located at 2200 SW GAGE BLVD VA MEDICAL CENTER TOPEKA, KS 66622 and the phone number is (785) 350-4308.
Psychiatry & Neurology with taxonomy code 2084N0400X and a focus in Neurology.
