ANGEL JOEL CADENA TEJADA SR.
NPI 1821658915
Psychiatry & Neurology - Neurology in Farmington, CT

NPI Status: Active since June 19, 2019

Contact Information

263 FARMINGTON AVE
FARMINGTON, CT
ZIP 06030
Phone: (860) 679-4888
Fax: (860) 679-0131

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  • Individual
  • Male
  • Psychiatry & Neurology
  • Neurology

About ANGEL CADENA TEJADA

This page provides the complete NPI Profile along with additional information for Angel Cadena Tejada, a provider established in Farmington, Connecticut with a medical specialization in Psychiatry & Neurology, focusing in neurology . The healthcare provider is registered in the NPI registry with number 1821658915 assigned on June 2019. The practitioner's primary taxonomy code is 2084N0400X with license number 82947 (CT). The provider is registered as an individual and his NPI record was last updated June 2026.

NPI
1821658915
Provider Name
ANGEL JOEL CADENA TEJADA SR.
Gender
Male
Entity Type
Individual
Location Address
263 FARMINGTON AVE FARMINGTON, CT 06030
Location Phone
(860) 679-4888
Location Fax
(860) 679-0131
Mailing Address
6431 FANNIN ST HOUSTON, TX 77030
Mailing Phone
(713) 500-6128
Mailing Fax
(860) 679-0131
Is Sole Proprietor?
No
Enumeration Date
06-19-2019
Last Update Date
06-09-2026
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Location Map

Secondary Locations

  • 6431 Fannin st.
    Houston, TX 77030
    (713) 500-6128

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.
82947
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)
12084N0400XAllopathic & Osteopathic Physicians

Psychiatry & Neurology
Neurology

LL82877 (SC)
22084N0400XAllopathic & Osteopathic Physicians

Psychiatry & Neurology
Neurology

V1419 (TX)

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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 1821658915, we treat the final digit (5) 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 65. The final step is to find the difference between that total and the next multiple of ten (70 - 65 = 5).

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

Step 2: Add all digits plus the NPI constant

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

2 + 8 + 4 + 1 + 1 + 2 + 5 + 1 + 6 + 9 + 2 + 24 = 65

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

The next multiple of ten after 65 is 70. The difference is the calculated check digit.

70 - 65 = 5
This NPI is valid
The calculated check digit is 5, which matches the last digit of 1821658915.

Other Providers at the Same Location


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

Neurological Surgery
263 FARMINGTON AVE
FARMINGTON, CT 06030
Internal Medicine
263 FARMINGTON AVE
FARMINGTON, CT 06030
Pathology (Anatomic Pathology)
263 FARMINGTON AVE
FARMINGTON, CT 06030
Psychiatry & Neurology (Psychiatry)
263 FARMINGTON AVE
FARMINGTON, CT 06030
Internal Medicine (Gastroenterology)
263 FARMINGTON AVE
FARMINGTON, CT 06030
Dietitian, Registered
263 FARMINGTON AVE
FARMINGTON, CT 06030
Internal Medicine
263 FARMINGTON AVE
FARMINGTON, CT 06030
Nurse Anesthetist, Certified Registered
263 FARMINGTON AVE
FARMINGTON, CT 06030
Psychiatry & Neurology (Neurology)
263 FARMINGTON AVE
FARMINGTON, CT 06030
Internal Medicine (Hematology & Oncology)
263 FARMINGTON AVE
FARMINGTON, CT 06030
Dermatology
263 FARMINGTON AVE
FARMINGTON, CT 06030
Radiology (Diagnostic Radiology)
263 FARMINGTON AVE
FARMINGTON, CT 06030
Family Medicine (Geriatric Medicine)
263 FARMINGTON AVE
FARMINGTON, CT 06030
Surgery (Vascular Surgery)
263 FARMINGTON AVE
FARMINGTON, CT 06030
Internal Medicine
263 FARMINGTON AVE
FARMINGTON, CT 06030
Internal Medicine (Hematology & Oncology)
263 FARMINGTON AVE
FARMINGTON, CT 06030
Orthopaedic Surgery
263 FARMINGTON AVE
FARMINGTON, CT 06030
Dentist
263 FARMINGTON AVE
FARMINGTON, CT 06030
Dentist
263 FARMINGTON AVE
FARMINGTON, CT 06030
Nurse Anesthetist, Certified Registered
263 FARMINGTON AVE
FARMINGTON, CT 06030

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1821658915, enumerated as an "individual" on June 19, 2019.

The provider is located at 263 FARMINGTON AVE FARMINGTON, CT 06030 and the phone number is (860) 679-4888.

Psychiatry & Neurology with taxonomy code 2084N0400X and a focus in Neurology.