DAVID NELSON FOSTER LMSW
NPI 1407658552
Social Worker in Baltimore, MD

NPI Status: Active since March 26, 2025

Contact Information

928 E NORTH AVE
BALTIMORE, MD
ZIP 21202
Phone: (410) 235-6633

Get Directions Write a Review

  • Individual
  • Male
  • Social Worker

About DAVID FOSTER

This page provides the complete NPI Profile along with additional information for David Foster, a provider established in Baltimore, Maryland with a medical specialization in Social Worker. The healthcare provider is registered in the NPI registry with number 1407658552 assigned on March 2025. The practitioner's primary taxonomy code is 104100000X with license number 31068 (MD). The provider is registered as an individual and his NPI record was last updated one year ago. The organization operates as a Single Specialty Group with one or more individual practitioners, all of who practice with the same area of specialization.

NPI
1407658552
Provider Name
DAVID NELSON FOSTER LMSW
Gender
Male
Entity Type
Individual
Location Address
928 E NORTH AVE BALTIMORE, MD 21202
Location Phone
(410) 235-6633
Mailing Address
1206 LINWORTH AVE APT 1D BALTIMORE, MD 21239
Is Sole Proprietor?
Yes
Enumeration Date
03-26-2025
Last Update Date
03-26-2025
Code Navigator

A social worker like David Foster 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 No.
31068
License State
MD
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 193400000X SINGLE SPECIALTY GROUP

This provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.

Reviews for DAVID NELSON FOSTER LMSW

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 1407658552, we treat the final digit (2) 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 58. The final step is to find the difference between that total and the next multiple of ten (60 - 58 = 2).

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
0
Doubled → 0
Pos 4
7
Unchanged
Pos 5
6
Doubled → 12 → 1 + 2
Pos 6
5
Unchanged
Pos 7
8
Doubled → 16 → 1 + 6
Pos 8
5
Unchanged
Pos 9
5
Doubled → 10 → 1 + 0
Check
2
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 0 → 0 6 → 12 → 3 8 → 16 → 7 5 → 10 → 1

Step 2: Add all digits plus the NPI constant

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

2 + 4 + 0 + 7 + 1 + 2 + 5 + 1 + 6 + 5 + 1 + 0 + 24 = 58

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

The next multiple of ten after 58 is 60. The difference is the calculated check digit.

60 - 58 = 2
This NPI is valid
The calculated check digit is 2, which matches the last digit of 1407658552.

Other Providers at the Same Location


The following 4 providers are registered at the same or a nearby location.

Social Worker (Clinical)
928 E NORTH AVE
BALTIMORE, MD 21202
Social Worker
928 E NORTH AVE
BALTIMORE, MD 21202
Counselor (Mental Health)
928 E NORTH AVE
BALTIMORE, MD 21202
Social Worker
928 E NORTH AVE
BALTIMORE, MD 21202

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1407658552, enumerated as an "individual" on March 26, 2025.

The provider is located at 928 E NORTH AVE BALTIMORE, MD 21202 and the phone number is (410) 235-6633.

Social Worker with taxonomy code 104100000X.