DR. CARRIE TILTON CALLAHAN PHARMD
NPI 1013856426
Pharmacist - Pharmacotherapy in Atlanta, GA

NPI Status: Active since March 28, 2026

Contact Information

1364 CLIFTON RD NE
ATLANTA, GA
ZIP 30322
Phone: (404) 712-7883
Fax: (872) 241-0289

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  • Individual
  • Female
  • Pharmacist
  • Pharmacotherapy

About CARRIE CALLAHAN

This page provides the complete NPI Profile along with additional information for Carrie Callahan, a provider established in Atlanta, Georgia with a medical specialization in Pharmacist, focusing in pharmacotherapy . The healthcare provider is registered in the NPI registry with number 1013856426 assigned on March 2026. The practitioner's primary taxonomy code is 1835P1200X with license number RPH030512 (GA). The provider is registered as an individual and her NPI record was last updated March 2026.

NPI
1013856426
Provider Name
DR. CARRIE TILTON CALLAHAN PHARMD
Gender
Female
Entity Type
Individual
Location Address
1364 CLIFTON RD NE ATLANTA, GA 30322
Location Phone
(404) 712-7883
Location Fax
(872) 241-0289
Mailing Address
1364 CLIFTON RD NE ATLANTA, GA 30322
Mailing Phone
(404) 712-7883
Mailing Fax
(872) 241-0289
Is Sole Proprietor?
No
Enumeration Date
03-28-2026
Last Update Date
03-28-2026
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A pharmacist like Carrie Callahan fills prescription medications, verifying instructions from physicians and offers expertise in the safe use of prescriptions. Pharmacists instruct patients on how to take a prescribed medicine and educate patients about potential side effects. Pharmacists might also conduct health and wellness screenings, provide immunizations, oversee the medications given to patients, and provide advice on healthy lifestyles.

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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

Pharmacist Pharmacotherapy

Taxonomy Code
1835P1200X
Type
Pharmacy Service Providers
License No.
RPH030512
License State
GA
Taxonomy Description
A licensed pharmacist who has demonstrated specialized knowledge and skill in optimizing pharmacotherapeutic care of patients, by developing, implementing, monitoring, and modifying complex treatment plans, providing advanced level education and consultation, and collaborating with other health professionals in the management of therapy.

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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 1013856426, we treat the final digit (6) 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 54. The final step is to find the difference between that total and the next multiple of ten (60 - 54 = 6).

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
0
Unchanged
Pos 3
1
Doubled → 2
Pos 4
3
Unchanged
Pos 5
8
Doubled → 16 → 1 + 6
Pos 6
5
Unchanged
Pos 7
6
Doubled → 12 → 1 + 2
Pos 8
4
Unchanged
Pos 9
2
Doubled → 4
Check
6
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 1 → 2 8 → 16 → 7 6 → 12 → 3 2 → 4

Step 2: Add all digits plus the NPI constant

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

2 + 0 + 2 + 3 + 1 + 6 + 5 + 1 + 2 + 4 + 4 + 24 = 54

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

The next multiple of ten after 54 is 60. The difference is the calculated check digit.

60 - 54 = 6
This NPI is valid
The calculated check digit is 6, which matches the last digit of 1013856426.

Other Providers at the Same Location


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

Pharmacist (Pharmacotherapy)
1364 CLIFTON RD NE
ATLANTA, GA 30322
Pharmacist (Pharmacotherapy)
1364 CLIFTON RD NE, DEPARTMENT OF PHARMACY EG22
ATLANTA, GA 30322
Nurse Anesthetist, Certified Registered
1364 CLIFTON RD NE, STE B3
ATLANTA, GA 30322
Surgery
1364 CLIFTON RD NE, SUITE A3300
ATLANTA, GA 30322
Nurse Practitioner (Family)
1364 CLIFTON RD NE
ATLANTA, GA 30322
Pathology (Clinical Pathology/Laboratory Medicine)
1364 CLIFTON RD NE, ROOM F145
ATLANTA, GA 30322
Pathology (Anatomic Pathology)
1364 CLIFTON RD NE, RM. G144
ATLANTA, GA 30322
Pathology (Anatomic Pathology & Clinical Pathology)
1364 CLIFTON RD NE, ROOM H184
ATLANTA, GA 30322
Pathology (Anatomic Pathology & Clinical Pathology)
1364 CLIFTON RD NE
ATLANTA, GA 30322
Pathology (Anatomic Pathology & Clinical Pathology)
1364 CLIFTON RD NE, ROOM H171
ATLANTA, GA 30322
Pathology (Clinical Pathology/Laboratory Medicine)
1364 CLIFTON RD NE, ROOM F147A
ATLANTA, GA 30322
Radiology (Neuroradiology)
1364 CLIFTON RD NE
ATLANTA, GA 30322
Nurse Practitioner (Family)
1364 CLIFTON RD NE
ATLANTA, GA 30322
Registered Nurse (Critical Care Medicine)
1364 CLIFTON RD NE
ATLANTA, GA 30322
Anesthesiologist Assistant
1364 CLIFTON RD NE
ATLANTA, GA 30322
Anesthesiologist Assistant
1364 CLIFTON RD NE, 3B ANESTHESIOLOGY
ATLANTA, GA 30322
Radiology (Diagnostic Radiology)
1364 CLIFTON RD NE
ATLANTA, GA 30322
Radiology (Neuroradiology)
1364 CLIFTON RD NE, ROOM B-115
ATLANTA, GA 30322
Anesthesiologist Assistant
1364 CLIFTON RD NE, 3B ANESTHESIOLOGY
ATLANTA, GA 30322
Anesthesiology
1364 CLIFTON RD NE
ATLANTA, GA 30322

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1013856426, enumerated as an "individual" on March 28, 2026.

The provider is located at 1364 CLIFTON RD NE ATLANTA, GA 30322 and the phone number is (404) 712-7883.

Pharmacist with taxonomy code 1835P1200X and a focus in Pharmacotherapy.