GRETCHEN B. FRIEDLANDER LPC
NPI 1902108301
Counselor - Professional in Phoenix, AZ

NPI Status: Active since November 17, 2010

Contact Information

1536 E MARYLAND AVE
SUITE B-104
PHOENIX, AZ
ZIP 85014
Phone: (602) 614-8004

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  • Individual
  • Female
  • Counselor
  • Professional

About GRETCHEN FRIEDLANDER

This page provides the complete NPI Profile along with additional information for Gretchen Friedlander, a provider established in Phoenix, Arizona with a medical specialization in Counselor, focusing in professional . The healthcare provider is registered in the NPI registry with number 1902108301 assigned on November 2010. The practitioner's primary taxonomy code is 101YP2500X with license number LPC-12989 (AZ). The provider is registered as an individual and her NPI record was last updated 12 years ago.

NPI
1902108301
Provider Name
GRETCHEN B. FRIEDLANDER LPC
Gender
Female
Entity Type
Individual
Location Address
1536 E MARYLAND AVE SUITE B-104 PHOENIX, AZ 85014
Location Phone
(602) 614-8004
Mailing Address
1536 E MARYLAND AVE B-104 PHOENIX, AZ 85014
Mailing Phone
(602) 614-8004
Is Sole Proprietor?
Yes
Enumeration Date
11-17-2010
Last Update Date
07-25-2014
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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.
LPC-12989
License State
AZ

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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 1902108301, we treat the final digit (1) 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 49. The final step is to find the difference between that total and the next multiple of ten (50 - 49 = 1).

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

Step 2: Add all digits plus the NPI constant

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

2 + 9 + 0 + 2 + 2 + 0 + 1 + 6 + 3 + 0 + 24 = 49

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

The next multiple of ten after 49 is 50. The difference is the calculated check digit.

50 - 49 = 1
This NPI is valid
The calculated check digit is 1, which matches the last digit of 1902108301.

Other Providers at the Same Location


The following 4 providers are registered at the same or a nearby location.

Social Worker (Clinical)
1536 E MARYLAND AVE, SUITE C-101
PHOENIX, AZ 85014
Counselor (Mental Health)
1536 E MARYLAND AVE, SUITE A-100
PHOENIX, AZ 85014
Counselor (Professional)
1536 E MARYLAND AVE, SUITE A300
PHOENIX, AZ 85014
Counselor (Mental Health)
1536 E MARYLAND AVE
PHOENIX, AZ 85014

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1902108301, enumerated as an "individual" on November 17, 2010.

The provider is located at 1536 E MARYLAND AVE SUITE B-104 PHOENIX, AZ 85014 and the phone number is (602) 614-8004.

Counselor with taxonomy code 101YP2500X and a focus in Professional.