MARK FERRY LMSW
NPI 1487440624
Social Worker in Danbury, CT

NPI Status: Active since April 15, 2025

Contact Information

24 HOSPITAL AVE
DANBURY, CT
ZIP 06810
Phone: (203) 739-7007
Fax: (203) 749-9025

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  • Individual
  • Male
  • Social Worker

About MARK FERRY

This page provides the complete NPI Profile along with additional information for Mark Ferry, a provider established in Danbury, Connecticut with a medical specialization in Social Worker. The healthcare provider is registered in the NPI registry with number 1487440624 assigned on April 2025. The practitioner's primary taxonomy code is 104100000X. The provider is registered as an individual and his NPI record was last updated one year ago. Mark Ferry operates as a Multi-Specialty Group with one or more individual practitioners, who practice different areas of specialization.

NPI
1487440624
Provider Name
MARK FERRY LMSW
Gender
Male
Entity Type
Individual
Location Address
24 HOSPITAL AVE DANBURY, CT 06810
Location Phone
(203) 739-7007
Location Fax
(203) 749-9025
Mailing Address
52 OBTUSE RD S BROOKFIELD, CT 06804
Mailing Phone
(203) 240-0771
Is Sole Proprietor?
Yes
Enumeration Date
04-15-2025
Last Update Date
04-15-2025
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A social worker like Mark Ferry 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.

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

Taxonomy Code
104100000X
Type
Behavioral Health & Social Service Providers
License State
CT
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.

Group Taxonomy 193200000X MULTI-SPECIALTY GROUP

This provider is a business group of one or more individual practitioners, who practice with different areas of specialization.

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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 1487440624, 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 66. The final step is to find the difference between that total and the next multiple of ten (70 - 66 = 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
4
Unchanged
Pos 3
8
Doubled → 16 → 1 + 6
Pos 4
7
Unchanged
Pos 5
4
Doubled → 8
Pos 6
4
Unchanged
Pos 7
0
Doubled → 0
Pos 8
6
Unchanged
Pos 9
2
Doubled → 4
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 8 → 16 → 7 4 → 8 0 → 0 2 → 4

Step 2: Add all digits plus the NPI constant

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

2 + 4 + 1 + 6 + 7 + 8 + 4 + 0 + 6 + 4 + 24 = 66

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

The next multiple of ten after 66 is 70. The difference is the calculated check digit.

70 - 66 = 4
This NPI is valid
The calculated check digit is 4, which matches the last digit of 1487440624.

Other Providers at the Same Location


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

Nurse Anesthetist, Certified Registered
24 HOSPITAL AVE
DANBURY, CT 06810
Radiology (Diagnostic Radiology)
24 HOSPITAL AVE
DANBURY, CT 06810
Radiology (Diagnostic Radiology)
24 HOSPITAL AVE
DANBURY, CT 06810
Emergency Medicine
24 HOSPITAL AVE
DANBURY, CT 06810
Radiology (Diagnostic Radiology)
24 HOSPITAL AVE
DANBURY, CT 06810
Radiology (Diagnostic Radiology)
24 HOSPITAL AVE
DANBURY, CT 06810
Radiology (Diagnostic Radiology)
24 HOSPITAL AVE
DANBURY, CT 06810
Internal Medicine (Pulmonary Disease)
24 HOSPITAL AVE
DANBURY, CT 06810
Nurse Anesthetist, Certified Registered
24 HOSPITAL AVE
DANBURY, CT 06810
Physician Assistant
24 HOSPITAL AVE
DANBURY, CT 06810
Radiology (Radiation Oncology)
24 HOSPITAL AVE
DANBURY, CT 06810
Pathology (Anatomic Pathology & Clinical Pathology)
24 HOSPITAL AVE
DANBURY, CT 06810
Internal Medicine
24 HOSPITAL AVE
DANBURY, CT 06810
Anesthesiology
24 HOSPITAL AVE, ANESTHESIOLOGY DEPARTMENT
DANBURY, CT 06810
Physician Assistant (Medical)
24 HOSPITAL AVE
DANBURY, CT 06810
Nurse Anesthetist, Certified Registered
24 HOSPITAL AVE
DANBURY, CT 06810
Physician Assistant (Surgical)
24 HOSPITAL AVE
DANBURY, CT 06810
Physician Assistant (Medical)
24 HOSPITAL AVE
DANBURY, CT 06810
Pathology (Anatomic Pathology & Clinical Pathology)
24 HOSPITAL AVE, DEPARTMENT OF PATHOLOGY
DANBURY, CT 06810
Internal Medicine (Hematology & Oncology)
24 HOSPITAL AVE
DANBURY, CT 06810

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1487440624, enumerated as an "individual" on April 15, 2025.

The provider is located at 24 HOSPITAL AVE DANBURY, CT 06810 and the phone number is (203) 739-7007.

Social Worker with taxonomy code 104100000X.