GREGORY M HROSTEK LPCA, NCC
NPI 1538871488
Counselor in Bridgeport, CT

NPI Status: Active since December 21, 2022

Contact Information

350 GROVERS AVE UNIT 6A
BRIDGEPORT, CT
ZIP 06605
Phone: (203) 515-5185
Fax: (802) 497-2187

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  • Individual
  • Male
  • Counselor

About GREGORY HROSTEK

This page provides the complete NPI Profile along with additional information for Gregory Hrostek, a provider established in Bridgeport, Connecticut with a medical specialization in Counselor. The healthcare provider is registered in the NPI registry with number 1538871488 assigned on December 2022. The practitioner's primary taxonomy code is 101Y00000X with license number 46.005111-ASOC (CT). The provider is registered as an individual and his NPI record was last updated 4 years ago.

NPI
1538871488
Provider Name
GREGORY M HROSTEK LPCA, NCC
Gender
Male
Entity Type
Individual
Location Address
350 GROVERS AVE UNIT 6A BRIDGEPORT, CT 06605
Location Phone
(203) 515-5185
Location Fax
(802) 497-2187
Mailing Address
191 QUAKER FARMS RD OXFORD, CT 06478
Mailing Phone
(203) 583-6353
Is Sole Proprietor?
No
Enumeration Date
12-21-2022
Last Update Date
01-06-2023
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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

Taxonomy Code
101Y00000X
Type
Behavioral Health & Social Service Providers
License No.
46.005111-ASOC
License State
CT
Taxonomy Description
A provider who is trained and educated in the performance of behavior health services through interpersonal communications and analysis. Training and education at the specialty level usually requires a master's degree and clinical experience and supervision for licensure or certification.

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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 1538871488, we treat the final digit (8) 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 72. The final step is to find the difference between that total and the next multiple of ten (80 - 72 = 8).

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

Step 2: Add all digits plus the NPI constant

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

2 + 5 + 6 + 8 + 1 + 6 + 7 + 2 + 4 + 1 + 6 + 24 = 72

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

The next multiple of ten after 72 is 80. The difference is the calculated check digit.

80 - 72 = 8
This NPI is valid
The calculated check digit is 8, which matches the last digit of 1538871488.

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1538871488, enumerated as an "individual" on December 21, 2022.

The provider is located at 350 GROVERS AVE UNIT 6A BRIDGEPORT, CT 06605 and the phone number is (203) 515-5185.

Counselor with taxonomy code 101Y00000X.