ALFONSO DANIEL DE DIEGO
NPI 1457225989
Student in an Organized Health Care Education/Training Program in Atlanta, GA

NPI Status: Active since September 29, 2025

Contact Information

550 PEACHTREE ST NE
ATLANTA, GA
ZIP 30308
Phone: (404) 686-4411

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  • Individual
  • Male
  • Student in an Organized Health Care Educ...

About ALFONSO DE DIEGO

This page provides the complete NPI Profile along with additional information for Alfonso De Diego, a primary care provider established in Atlanta, Georgia with a medical specialization in Student In An Organized Health Care Education/training Program. The healthcare provider is registered in the NPI registry with number 1457225989 assigned on September 2025. The practitioner's primary taxonomy code is 390200000X. The provider is registered as an individual and his NPI record was last updated one year ago.

NPI
1457225989
Provider Name
ALFONSO DANIEL DE DIEGO
Gender
Male
Entity Type
Individual
Location Address
550 PEACHTREE ST NE ATLANTA, GA 30308
Location Phone
(404) 686-4411
Mailing Address
5903 KRANTZ DR FREDERICK, MD 21703
Mailing Phone
(240) 505-6831
Is Sole Proprietor?
No
Enumeration Date
09-29-2025
Last Update Date
09-29-2025
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A primary care provider (PCP) like Alfonso De Diego sees people with common medical problems. The primary care provider might be a doctor, physician assistant, nurse practitioner or clinic that are usually involved in your long-term care. A PCP might provide preventive care, treat common medical conditions, identify urgent medical problems and refer you to specialists when necessary. Primary care is usually provided in an outpatient facility but if you are admitted to a hospital your PCP may assist in your care. The most common medical conditions seen by primary care providers are: hypertension, upper respiratory tract infections, depression or anxiety, back pain, arthritis, dermatitis, diabetes, urinary tract infections, etc .

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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

Student in an Organized Health Care Education/Training Program

Taxonomy Code
390200000X
Type
Student, Health Care
License State
GA
Taxonomy Description
An individual who is enrolled in an organized health care education/training program leading to a degree, certification, registration, and/or licensure to provide health care.

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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 1457225989, we treat the final digit (9) 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 61. The final step is to find the difference between that total and the next multiple of ten (70 - 61 = 9).

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
4
Unchanged
Pos 3
5
Doubled → 10 → 1 + 0
Pos 4
7
Unchanged
Pos 5
2
Doubled → 4
Pos 6
2
Unchanged
Pos 7
5
Doubled → 10 → 1 + 0
Pos 8
9
Unchanged
Pos 9
8
Doubled → 16 → 1 + 6
Check
9
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 5 → 10 → 1 2 → 4 5 → 10 → 1 8 → 16 → 7

Step 2: Add all digits plus the NPI constant

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

2 + 4 + 1 + 0 + 7 + 4 + 2 + 1 + 0 + 9 + 1 + 6 + 24 = 61

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

The next multiple of ten after 61 is 70. The difference is the calculated check digit.

70 - 61 = 9
This NPI is valid
The calculated check digit is 9, which matches the last digit of 1457225989.

Other Providers at the Same Location


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

Internal Medicine (Gastroenterology)
550 PEACHTREE ST NE, SUITE 1600
ATLANTA, GA 30308
Emergency Medicine
550 PEACHTREE ST NE, EMORY UNIVERSITY CRAWFORD LONG HOSPITAL
ATLANTA, GA 30308
Internal Medicine
550 PEACHTREE ST NE, STE. 1625
ATLANTA, GA 30308
Internal Medicine (Gastroenterology)
550 PEACHTREE ST NE, SUITE 1600
ATLANTA, GA 30308
Psychiatry & Neurology (Neurology)
550 PEACHTREE ST NE, SUITE 1200
ATLANTA, GA 30308
Psychiatry & Neurology (Neurology)
550 PEACHTREE ST NE, SUITE 550
ATLANTA, GA 30308
Anesthesiology
550 PEACHTREE ST NE, DEPT. OF ANESTHESIOLOGY, EMORY CRAWFORD LONG HOSP
ATLANTA, GA 30308
Pediatrics
550 PEACHTREE ST NE, 3RD FL
ATLANTA, GA 30308
Physical Therapist
550 PEACHTREE ST NE, SUITE 1165
ATLANTA, GA 30308
Physician Assistant (Medical)
550 PEACHTREE ST NE, SUITE 1700
ATLANTA, GA 30308
Pediatrics (Neonatal-Perinatal Medicine)
550 PEACHTREE ST NE, CRAWFORD LONG HOSPTIAL
ATLANTA, GA 30308
Emergency Medicine
550 PEACHTREE ST NE
ATLANTA, GA 30308
Surgery
550 PEACHTREE ST NE, SUITE 1485
ATLANTA, GA 30308
Obstetrics & Gynecology (Maternal & Fetal Medicine)
550 PEACHTREE ST NE, SUITE 1275
ATLANTA, GA 30308
Neurological Surgery
550 PEACHTREE ST NE, #1770
ATLANTA, GA 30308
Emergency Medicine
550 PEACHTREE ST NE
ATLANTA, GA 30308
Orthopaedic Surgery
550 PEACHTREE ST NE, 19TH FLOOR
ATLANTA, GA 30308
Emergency Medicine
550 PEACHTREE ST NE
ATLANTA, GA 30308
Emergency Medicine
550 PEACHTREE ST NE
ATLANTA, GA 30308
Optometrist
550 PEACHTREE ST NE, 9TH FLOOR
ATLANTA, GA 30308

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1457225989, enumerated as an "individual" on September 29, 2025.

The provider is located at 550 PEACHTREE ST NE ATLANTA, GA 30308 and the phone number is (404) 686-4411.

Student in an Organized Health Care Education/Training Program with taxonomy code 390200000X.