COREY ROSENFELD LMSW
NPI 1669200564
Social Worker in New York, NY

NPI Status: Active since July 23, 2024

Contact Information

57 SAINT MARKS PL
NEW YORK, NY
ZIP 10003
Phone: (212) 982-3470

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  • Individual
  • Male
  • Social Worker

About COREY ROSENFELD

This page provides the complete NPI Profile along with additional information for Corey Rosenfeld, a provider established in New York, New York with a medical specialization in Social Worker. The healthcare provider is registered in the NPI registry with number 1669200564 assigned on July 2024. The practitioner's primary taxonomy code is 104100000X with license number 124265-01 (NY). The provider is registered as an individual and his NPI record was last updated April 2026.

NPI
1669200564
Provider Name
COREY ROSENFELD LMSW
Gender
Male
Entity Type
Individual
Location Address
57 SAINT MARKS PL NEW YORK, NY 10003
Location Phone
(212) 982-3470
Mailing Address
250 E 40TH ST APT 5F NEW YORK, NY 10016
Mailing Phone
(561) 654-3818
Is Sole Proprietor?
No
Enumeration Date
07-23-2024
Last Update Date
04-03-2026
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A social worker like Corey Rosenfeld helps patients solve and cope with problems in their everyday lives, diagnoses and treats mental, behavioral, and emotional problems. Social workers help in wide range of situations, such as adopting a child, illness, divorce, or unemployment.

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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

Taxonomy Code
104100000X
Type
Behavioral Health & Social Service Providers
License No.
124265-01
License State
NY
Taxonomy Description
A social worker is a person who is qualified by a Social Work degree, and licensed, certified or registered by the state as a social worker to practice within the scope of that license. A social worker provides assistance and counseling to clients and their families who are dealing with social, emotional and environmental problems. Social work services may be rendered to individuals, families, groups, and the public.

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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 1669200564, we treat the final digit (4) 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 56. The final step is to find the difference between that total and the next multiple of ten (60 - 56 = 4).

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
6
Unchanged
Pos 3
6
Doubled → 12 → 1 + 2
Pos 4
9
Unchanged
Pos 5
2
Doubled → 4
Pos 6
0
Unchanged
Pos 7
0
Doubled → 0
Pos 8
5
Unchanged
Pos 9
6
Doubled → 12 → 1 + 2
Check
4
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 6 → 12 → 3 2 → 4 0 → 0 6 → 12 → 3

Step 2: Add all digits plus the NPI constant

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

2 + 6 + 1 + 2 + 9 + 4 + 0 + 0 + 5 + 1 + 2 + 24 = 56

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

The next multiple of ten after 56 is 60. The difference is the calculated check digit.

60 - 56 = 4
This NPI is valid
The calculated check digit is 4, which matches the last digit of 1669200564.

Other Providers at the Same Location


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

Psychologist
57 SAINT MARKS PL
NEW YORK, NY 10003
Social Worker (Clinical)
57 SAINT MARKS PL
NEW YORK, NY 10003
Social Worker (Clinical)
57 SAINT MARKS PL
NEW YORK, NY 10003
Counselor (Addiction (Substance Use Disorder))
57 SAINT MARKS PL
NEW YORK, NY 10003
Psychiatry & Neurology (Psychiatry)
57 SAINT MARKS PL
NEW YORK, NY 10003
Marriage & Family Therapist
57 SAINT MARKS PL
NEW YORK, NY 10003
Counselor (Mental Health)
57 SAINT MARKS PL
NEW YORK, NY 10003
Marriage & Family Therapist
57 SAINT MARKS PL, UNITAS ST MARKS PLACE INSTITUTE
NEW YORK, NY 10003
Counselor
57 SAINT MARKS PL
NEW YORK, NY 10003
Counselor (Mental Health)
57 SAINT MARKS PL
NEW YORK, NY 10003
Counselor (Mental Health)
57 SAINT MARKS PL
NEW YORK, NY 10003
Counselor (Mental Health)
57 SAINT MARKS PL
NEW YORK, NY 10003
Counselor (Mental Health)
57 SAINT MARKS PL
NEW YORK, NY 10003
Counselor (Addiction (Substance Use Disorder))
57 SAINT MARKS PL
NEW YORK, NY 10003
Counselor (Mental Health)
57 SAINT MARKS PL
NEW YORK, NY 10003
Student in an Organized Health Care Education/Training Program
57 SAINT MARKS PL
NEW YORK, NY 10003
Student in an Organized Health Care Education/Training Program
57 SAINT MARKS PL
NEW YORK, NY 10003
Counselor
57 SAINT MARKS PL
NEW YORK, NY 10003
Counselor (Mental Health)
57 SAINT MARKS PL
NEW YORK, NY 10003
Counselor (Mental Health)
57 SAINT MARKS PL
NEW YORK, NY 10003

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1669200564, enumerated as an "individual" on July 23, 2024.

The provider is located at 57 SAINT MARKS PL NEW YORK, NY 10003 and the phone number is (212) 982-3470.

Social Worker with taxonomy code 104100000X.