MR. ROBERT EARL CROFTON JR. CPHT
NPI 1528458759
Pharmacy Technician in Silver Spring, MD

NPI Status: Active since January 26, 2015

Contact Information

12000 CHERRY HILL RD
SILVER SPRING, MD
ZIP 20904
Phone: (301) 586-0873
Fax: (301) 960-9141

NPI Profile Information
Primary Taxonomy
NPI Validation
Other Providers Same Location
Frequently Asked Questions

Individual
Male
Pharmacy Technician

About ROBERT CROFTON

This page provides the complete NPI Profile along with additional information for Robert Crofton, a provider established in Silver Spring, Maryland with a medical specialization in Pharmacy Technician. The healthcare provider is registered in the NPI registry with number 1528458759 assigned on January 2015. The practitioner's primary taxonomy code is 183700000X with license number T13433 (MD). The provider is registered as an individual and his NPI record was last updated 11 years ago.

NPI: 1528458759
Provider Name: MR. ROBERT EARL CROFTON JR. CPHT
Gender: Male
Entity Type: Individual
Location Address: 12000 CHERRY HILL RD SILVER SPRING, MD 20904
Location Phone: (301) 586-0873
Location Fax: (301) 960-9141
Mailing Address: 12000 CHERRY HILL RD SILVER SPRING, MD 20904
Mailing Phone: (301) 586-0873
Mailing Fax: (301) 960-9141
Is Sole Proprietor?: No
Enumeration Date: 01-26-2015
Last Update Date: 01-26-2015
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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: Pharmacy Technician
Taxonomy Code: 183700000X
Type: Pharmacy Service Providers
License No.: T13433
License State: MD
Taxonomy Description: A person who works under the direct supervision of a licensed pharmacist and performs many pharmacy-related functions that do not require the professional judgment of a pharmacist.

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 1528458759, 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 71. The final step is to find the difference between that total and the next multiple of ten (80 - 71 = 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

Doubled → 2

Pos 2

Unchanged

Pos 3

Doubled → 4

Pos 4

Unchanged

Pos 5

Doubled → 8

Pos 6

Unchanged

Pos 7

Doubled → 16 → 1 + 6

Pos 8

Unchanged

Pos 9

Doubled → 10 → 1 + 0

Check

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 4 → 8 8 → 16 → 7 5 → 10 → 1

Step 2: Add all digits plus the NPI constant

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

2 + 5 + 4 + 8 + 8 + 5 + 1 + 6 + 7 + 1 + 0 + 24 = 71

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

The next multiple of ten after 71 is 80. The difference is the calculated check digit.

80 - 71 = 9

This NPI is valid

The calculated check digit is 9, which matches the last digit of 1528458759.