MADELYN HERNANDEZ LCSW
NPI 1770427510
Social Worker - Clinical in New Haven, CT

NPI Status: Active since April 14, 2026

Contact Information

374 GRAND AVE
NEW HAVEN, CT
ZIP 06513
Phone: (203) 777-7411

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  • Individual
  • Female
  • Social Worker
  • Clinical

About MADELYN HERNANDEZ

This page provides the complete NPI Profile along with additional information for Madelyn Hernandez, a provider established in New Haven, Connecticut with a medical specialization in Social Worker, focusing in clinical . The healthcare provider is registered in the NPI registry with number 1770427510 assigned on April 2026. The practitioner's primary taxonomy code is 1041C0700X with license number 16652 (CT). The provider is registered as an individual and her NPI record was last updated April 2026.

NPI
1770427510
Provider Name
MADELYN HERNANDEZ LCSW
Gender
Female
Entity Type
Individual
Location Address
374 GRAND AVE NEW HAVEN, CT 06513
Location Phone
(203) 777-7411
Mailing Address
374 GRAND AVE NEW HAVEN, CT 06513
Mailing Phone
(203) 777-7411
Is Sole Proprietor?
No
Enumeration Date
04-14-2026
Last Update Date
04-14-2026
Code Navigator

A clinical social worker like Madelyn Hernandez is licensed to diagnose and treat mental, behavioral, and emotional disorders. A clinical social worker helps patients develop strategies to change behavior or cope with difficult situations and refer patients to other resources or services, such as support groups or other mental health professionals.

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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

Social Worker Clinical

Taxonomy Code
1041C0700X
Type
Behavioral Health & Social Service Providers
License No.
16652
License State
CT
Taxonomy Description
A social worker who holds a master's or doctoral degree in social work from an accredited school of social work in addition to at least two years of post-master's supervised experience in a clinical setting. The social worker must be licensed, certified, or registered at the clinical level in the jurisdiction of practice. A clinical social worker provides direct services, including interventions focused on interpersonal interactions, intrapsychic dynamics, and life management issues. Clinical social work services are based on bio-psychosocial perspectives. Services consist of assessment, diagnosis, treatment (including psychotherapy and counseling), client-centered advocacy, consultation, evaluation, and prevention of mental illness, emotional, or behavioral disturbances.

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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 1770427510, we treat the final digit (0) 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 60. The final step is to find the difference between that total and the next multiple of ten (60 - 60 = 0).

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
7
Unchanged
Pos 3
7
Doubled → 14 → 1 + 4
Pos 4
0
Unchanged
Pos 5
4
Doubled → 8
Pos 6
2
Unchanged
Pos 7
7
Doubled → 14 → 1 + 4
Pos 8
5
Unchanged
Pos 9
1
Doubled → 2
Check
0
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 7 → 14 → 5 1 → 2

Step 2: Add all digits plus the NPI constant

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

2 + 7 + 1 + 4 + 0 + 8 + 2 + 1 + 4 + 5 + 2 + 24 = 60

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

The next multiple of ten after 60 is 60. The difference is the calculated check digit.

60 - 60 = 0
This NPI is valid
The calculated check digit is 0, which matches the last digit of 1770427510.

Other Providers at the Same Location


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

Advanced Practice Midwife
374 GRAND AVE
NEW HAVEN, CT 06513
Pediatrics
374 GRAND AVE, FAIR HAVEN COMMUNITY HEALTH CENTER
NEW HAVEN, CT 06513
Physician Assistant
374 GRAND AVE, FAIR HAVEN COMMUNITY HEALTH CENTER
NEW HAVEN, CT 06513
Internal Medicine
374 GRAND AVE, FAIR HAVEN COMMUNITY HEALTH CENTER
NEW HAVEN, CT 06513
Advanced Practice Midwife
374 GRAND AVE, FAIR HAVEN COMMUNITY HEALTH CENTER
NEW HAVEN, CT 06513
Advanced Practice Midwife
374 GRAND AVE, FAIR HAVEN COMMUNITY HEALTH CENTER
NEW HAVEN, CT 06513
Family Medicine
374 GRAND AVE, FAIR HAVEN COMMUNITY HEALTH CTR
NEW HAVEN, CT 06513
Family Medicine
374 GRAND AVE
NEW HAVEN, CT 06513
Internal Medicine
374 GRAND AVE
NEW HAVEN, CT 06513
Internal Medicine
374 GRAND AVE, FAIR HAVEN COMMUNITY HEALTH CTR
NEW HAVEN, CT 06513
Internal Medicine
374 GRAND AVE, FAIR HAVEN COMMUNITY HEALTH CENTER
NEW HAVEN, CT 06513
Pediatrics
374 GRAND AVE, FAIR HAVEN COMMUNITY HEALTH CTR
NEW HAVEN, CT 06513
Advanced Practice Midwife
374 GRAND AVE, FAIR HAVEN COMMUNITY HEALTH CTR
NEW HAVEN, CT 06513
Nurse Practitioner (Pediatrics)
374 GRAND AVE, FAIR HAVEN COMMUNITY HEALTH CENTER
NEW HAVEN, CT 06513
Nurse Practitioner (Family)
374 GRAND AVE
NEW HAVEN, CT 06513
Dietitian, Registered
374 GRAND AVE
NEW HAVEN, CT 06513
Family Medicine
374 GRAND AVE
NEW HAVEN, CT 06513
Internal Medicine
374 GRAND AVE
NEW HAVEN, CT 06513
Family Medicine
374 GRAND AVE
NEW HAVEN, CT 06513
Internal Medicine
374 GRAND AVE
NEW HAVEN, CT 06513

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1770427510, enumerated as an "individual" on April 14, 2026.

The provider is located at 374 GRAND AVE NEW HAVEN, CT 06513 and the phone number is (203) 777-7411.

Social Worker with taxonomy code 1041C0700X and a focus in Clinical.