Newly Listed Provider — this NPI profile has been added to the NPI registry within the last 30 days.

GIA GIORDANO
NPI 1174442743
Counselor - Mental Health in Lexington, MA

Active since July 15, 2026
81 HARTWELL AVE STE 310, LEXINGTON, MA 02421(781) 918-6869 Get DirectionsWrite a Review

NPPES record added: July 15, 2026. Verified against the NPPES registry weekly; last sync: July 19, 2026.

  • Individual
  • Female
  • Counselor
  • Mental Health

About GIA GIORDANO

This page provides the complete NPI Profile along with additional information for Gia Giordano, a provider established in Lexington, Massachusetts with a medical specialization in Counselor, focusing in mental health . The healthcare provider is registered in the NPI registry with number 1174442743 assigned on July 2026. The practitioner's primary taxonomy code is 101YM0800X. The provider is registered as an individual and her NPI record was last updated July 2026.

NPI
1174442743
Provider Name
GIA GIORDANO
Gender
Female
Entity Type
Individual
Location Address
81 HARTWELL AVE STE 310 LEXINGTON, MA 02421
Location Phone
(781) 918-6869
Mailing Address
81 HARTWELL AVE STE 310 LEXINGTON, MA 02421
Mailing Phone
(781) 918-6869
Is Sole Proprietor?
No
Enumeration Date
07-15-2026
Last Update Date
07-15-2026
Code Navigator

A mental health counselor like Gia Giordano provides treatment to individuals, families, couples, and groups for mental and emotional health issues and relationship problems. Mental health counselors treat clients with a variety of conditions, including anxiety, depression, grief, low self-esteem, stress, and suicidal impulses.

Location Map

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 Mental Health

Taxonomy Code
101YM0800X
Type
Behavioral Health & Social Service Providers

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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 1174442743, 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 67. The final step is to find the difference between that total and the next multiple of ten (70 - 67 = 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
1
Doubled → 2
Pos 2
1
Unchanged
Pos 3
7
Doubled → 14 → 1 + 4
Pos 4
4
Unchanged
Pos 5
4
Doubled → 8
Pos 6
4
Unchanged
Pos 7
2
Doubled → 4
Pos 8
7
Unchanged
Pos 9
4
Doubled → 8
Check
3
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 7 → 14 → 5 4 → 8 2 → 4 4 → 8

Step 2: Add all digits plus the NPI constant

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

2 + 1 + 1 + 4 + 4 + 8 + 4 + 4 + 7 + 8 + 24 = 67

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

The next multiple of ten after 67 is 70. The difference is the calculated check digit.

70 - 67 = 3
This NPI is valid
The calculated check digit is 3, which matches the last digit of 1174442743.

Other Providers at the Same Location


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

Psychologist (Cognitive & Behavioral)
81 HARTWELL AVE STE 310
LEXINGTON, MA 02421
Counselor (Mental Health)
81 HARTWELL AVE STE 310
LEXINGTON, MA 02421
Psychologist (Clinical Child & Adolescent)
81 HARTWELL AVE STE 310
LEXINGTON, MA 02421
Psychologist
81 HARTWELL AVE STE 310
LEXINGTON, MA 02421
Psychologist (Clinical)
81 HARTWELL AVE STE 310
LEXINGTON, MA 02421
Counselor (Mental Health)
81 HARTWELL AVE STE 310
LEXINGTON, MA 02421
Counselor (Mental Health)
81 HARTWELL AVE STE 310
LEXINGTON, MA 02421
Psychologist (Clinical)
81 HARTWELL AVE STE 310
LEXINGTON, MA 02421
Counselor (Mental Health)
81 HARTWELL AVE STE 310
LEXINGTON, MA 02421
Counselor (Mental Health)
81 HARTWELL AVE STE 310
LEXINGTON, MA 02421
Counselor (Mental Health)
81 HARTWELL AVE STE 310
LEXINGTON, MA 02421
Counselor (Mental Health)
81 HARTWELL AVE STE 310
LEXINGTON, MA 02421
Counselor (Mental Health)
81 HARTWELL AVE STE 310
LEXINGTON, MA 02421
Counselor (Mental Health)
81 HARTWELL AVE STE 310
LEXINGTON, MA 02421
Counselor (Mental Health)
81 HARTWELL AVE STE 310
LEXINGTON, MA 02421
Student in an Organized Health Care Education/Training Program
81 HARTWELL AVE STE 310
LEXINGTON, MA 02421
Counselor (Mental Health)
81 HARTWELL AVE STE 310
LEXINGTON, MA 02421
Counselor
81 HARTWELL AVE STE 310
LEXINGTON, MA 02421
Counselor (Mental Health)
81 HARTWELL AVE STE 310
LEXINGTON, MA 02421
Counselor (Mental Health)
81 HARTWELL AVE STE 310
LEXINGTON, MA 02421

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1174442743, enumerated as an "individual" on July 15, 2026.

The provider is located at 81 HARTWELL AVE STE 310 LEXINGTON, MA 02421 and the phone number is (781) 918-6869.

Counselor with taxonomy code 101YM0800X and a focus in Mental Health.