ROBERT COHEN LCPC
NPI 1689809733
Counselor - Professional in Silver Spring, MD

NPI Status: Active since May 19, 2009

Contact Information

8737 COLESVILLE RD STE 700
#700
SILVER SPRING, MD
ZIP 20910
Phone: (301) 588-8181
Fax: (301) 588-8180

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

Individual
Male
Counselor
Professional

About ROBERT COHEN

This page provides the complete NPI Profile along with additional information for Robert Cohen, a provider established in Silver Spring, Maryland with a medical specialization in Counselor, focusing in professional . The healthcare provider is registered in the NPI registry with number 1689809733 assigned on May 2009. The practitioner's primary taxonomy code is 101YP2500X with license number LC0090 (MD). The provider is registered as an individual and his NPI record was last updated 17 years ago.

NPI: 1689809733
Provider Name: ROBERT COHEN LCPC
Gender: Male
Entity Type: Individual
Location Address: 8737 COLESVILLE RD STE 700 #700 SILVER SPRING, MD 20910
Location Phone: (301) 588-8181
Location Fax: (301) 588-8180
Mailing Address: 11503 FEBRUARY CIR #304 SILVER SPRING, MD 20904
Is Sole Proprietor?: Yes
Enumeration Date: 05-19-2009
Last Update Date: 05-19-2009
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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: Counselor Professional
Taxonomy Code: 101YP2500X
Type: Behavioral Health & Social Service Providers
License No.: LC0090
License State: MD

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 1689809733, 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 77. The final step is to find the difference between that total and the next multiple of ten (80 - 77 = 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.

Pos 1

Doubled → 2

Pos 2

Unchanged

Pos 3

Doubled → 16 → 1 + 6

Pos 4

Unchanged

Pos 5

Doubled → 16 → 1 + 6

Pos 6

Unchanged

Pos 7

Doubled → 18 → 1 + 8

Pos 8

Unchanged

Pos 9

Doubled → 6

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 8 → 16 → 7 8 → 16 → 7 9 → 18 → 9 3 → 6

Step 2: Add all digits plus the NPI constant

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

2 + 6 + 1 + 6 + 9 + 1 + 6 + 0 + 1 + 8 + 7 + 6 + 24 = 77

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

The next multiple of ten after 77 is 80. The difference is the calculated check digit.

80 - 77 = 3

This NPI is valid

The calculated check digit is 3, which matches the last digit of 1689809733.