DR. ROBERT YOUDIN PH.D., LCSW
NPI 1881711638
Social Worker - Clinical in Princeton, NJ

NPI Status: Active since March 26, 2007

Contact Information

20 NASSAU ST
SUITE 401
PRINCETON, NJ
ZIP 08542
Phone: (609) 924-3319
Fax: (732) 290-7556

Get Directions Write a Review

  • Individual
  • Male
  • Social Worker
  • Clinical
  • Opted-Out Medicare

About ROBERT YOUDIN

This page provides the complete NPI Profile along with additional information for Robert Youdin, a provider established in Princeton, New Jersey with a medical specialization in Social Worker, focusing in clinical . The healthcare provider is registered in the NPI registry with number 1881711638 assigned on March 2007. The practitioner's primary taxonomy code is 1041C0700X with license number 44SC00132800 (NJ). The provider is registered as an individual and his NPI record was last updated 17 years ago.

NPI
1881711638
Provider Name
DR. ROBERT YOUDIN PH.D., LCSW
Other Name
DR. ROBERT YOUDIN PH.D., LCSW, LLC
Other Name Type
Professional Name (2)
Gender
Male
Entity Type
Individual
Location Address
20 NASSAU ST SUITE 401 PRINCETON, NJ 08542
Location Phone
(609) 924-3319
Location Fax
(732) 290-7556
Mailing Address
20 NASSAU ST SUITE 401 PRINCETON, NJ 08542
Mailing Phone
(609) 924-3319
Mailing Fax
(732) 290-7556
Is Sole Proprietor?
Yes
Enumeration Date
03-26-2007
Last Update Date
01-06-2010
Code Navigator

A clinical social worker like Robert Youdin 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.

The provider doesn't accept Medicare and has signed an affidavit to be excluded from the Medicare program. If you are a Medicare beneficiary this means a provider can charge whatever they want for services rendered but must follow certain rules to do so. Robert Youdin opted out of Medicare effective on 07-21-2025 until 07-21-2027. Opt out periods last for two years and cannot be terminated unless the provider is opting out for the very first time and the affidavit is terminated no later than 90 days after the opt out effective date. Opt-out affidavits might renew automatically renew every two years. The provider opted out of Medicare and cannot order and refer services to other healthcare providers.

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

Social Worker Clinical

Taxonomy Code
1041C0700X
Type
Behavioral Health & Social Service Providers
License No.
44SC00132800
License State
NJ
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.

Medicare Participation & PECOS Enrollment Status

What is PECOS?
PECOS is the online Medicare enrollment management system or Provider, Enrollment, Chain and Ownership System. The PECOS system is a database of providers who have registered with CMS as providers or suppliers. PECOS is the primary source of information about verified Medicare professionals. Providers that want to participate in this program need to enroll in PECOS with their NPI number to avoid denied claims.

  • Opted-Out of Medicare? Yes

  • Opt-Out Effective Date: 07-21-2025

  • Opt-Out End Date: 07-21-2027

  • Eligible to Order and Refer? No

Reviews for DR. ROBERT YOUDIN PH.D., LCSW

There are currently no reviews for this provider. Be the first person to share your experience with this provider by filling out our review form. Your insights are appreciated and will help others make informed decisions.

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 1881711638, 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 62. The final step is to find the difference between that total and the next multiple of ten (70 - 62 = 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
8
Unchanged
Pos 3
8
Doubled → 16 → 1 + 6
Pos 4
1
Unchanged
Pos 5
7
Doubled → 14 → 1 + 4
Pos 6
1
Unchanged
Pos 7
1
Doubled → 2
Pos 8
6
Unchanged
Pos 9
3
Doubled → 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 8 → 16 → 7 7 → 14 → 5 1 → 2 3 → 6

Step 2: Add all digits plus the NPI constant

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

2 + 8 + 1 + 6 + 1 + 1 + 4 + 1 + 2 + 6 + 6 + 24 = 62

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

The next multiple of ten after 62 is 70. The difference is the calculated check digit.

70 - 62 = 8
This NPI is valid
The calculated check digit is 8, which matches the last digit of 1881711638.

Other Providers at the Same Location


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

Psychologist (Clinical)
20 NASSAU ST, SUITE 302
PRINCETON, NJ 08542
Psychologist
20 NASSAU ST, SUITE 315
PRINCETON, NJ 08542
Social Worker (Clinical)
20 NASSAU ST, SUITE 119
PRINCETON, NJ 08542
Psychologist (Clinical)
20 NASSAU ST, SUITE 212
PRINCETON, NJ 08542
Psychologist
20 NASSAU ST, SUITE 306
PRINCETON, NJ 08542
Psychologist (Clinical)
20 NASSAU ST, SUITE 212
PRINCETON, NJ 08542
Psychologist (Clinical)
20 NASSAU ST
PRINCETON, NJ 08542
Psychologist
20 NASSAU ST, SUITE 313
PRINCETON, NJ 08542
Psychologist
20 NASSAU ST, SUITE 507
PRINCETON, NJ 08542
Psychiatry & Neurology (Child & Adolescent Psychiatry)
20 NASSAU ST
PRINCETON, NJ 08542
Counselor (Mental Health)
20 NASSAU ST, SUITE 511
PRINCETON, NJ 08542
Psychiatry & Neurology (Psychiatry)
20 NASSAU ST, SUITE 407
PRINCETON, NJ 08542
Counselor (Professional)
20 NASSAU ST, SUITE 413
PRINCETON, NJ 08542
Reflexologist
20 NASSAU ST, SUITE 247
PRINCETON, NJ 08542
Psychologist (Clinical)
20 NASSAU ST
PRINCETON, NJ 08542
Clinic/Center (Adult Mental Health)
20 NASSAU ST, SUITE #504
PRINCETON, NJ 08542
Social Worker (Clinical)
20 NASSAU ST, SUITE 227
PRINCETON, NJ 08542
Social Worker (Clinical)
20 NASSAU ST, SUITE 119
PRINCETON, NJ 08542
Internal Medicine (Endocrinology, Diabetes & Metabolism)
20 NASSAU ST, SUITE 208
PRINCETON, NJ 08542
Internal Medicine (Endocrinology, Diabetes & Metabolism)
20 NASSAU ST, SUITE 208
PRINCETON, NJ 08542

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1881711638, enumerated as an "individual" on March 26, 2007.

The provider is located at 20 NASSAU ST SUITE 401 PRINCETON, NJ 08542 and the phone number is (609) 924-3319.

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