TAL SPIEGEL ADAR
NPI 1407797228
Developmental Therapist in Cambridge, MA

NPI Status: Active since April 04, 2026

Contact Information

18 ROBINSON ST APT 21
CAMBRIDGE, MA
ZIP 02138
Phone: (857) 331-8412

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  • Individual
  • Female
  • Developmental Therapist

About TAL SPIEGEL ADAR

This page provides the complete NPI Profile along with additional information for Tal Spiegel Adar, a provider established in Cambridge, Massachusetts with a medical specialization in Developmental Therapist. The healthcare provider is registered in the NPI registry with number 1407797228 assigned on April 2026. The practitioner's primary taxonomy code is 222Q00000X. The provider is registered as an individual and her NPI record was last updated April 2026.

NPI
1407797228
Provider Name
TAL SPIEGEL ADAR
Gender
Female
Entity Type
Individual
Location Address
18 ROBINSON ST APT 21 CAMBRIDGE, MA 02138
Location Phone
(857) 331-8412
Mailing Address
18 ROBINSON ST APT 21 CAMBRIDGE, MA 02138
Mailing Phone
(857) 331-8412
Is Sole Proprietor?
Yes
Enumeration Date
04-04-2026
Last Update Date
04-04-2026
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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

Developmental Therapist

Taxonomy Code
222Q00000X
Type
Respiratory, Developmental, Rehabilitative and Restorative Service Providers
Taxonomy Description
A Developmental Therapist is a person qualified by completion of an approved program in Developmental Therapy and where applicable credentialed by the state and practicing within the scope of the credential, or credentialed by completion of education experiences as approved by the state and practicing within the scope of that credential or, where state credentialing does not exist, certified by the Board of the Developmental Therapy Association. A developmental therapist evaluates children's global development in order to identify areas of developmental delay whether arising from physiological, neurological, or environmental factors, or a combination of factors; and designs, implements, and modifies therapeutic interventions for the child and the family to promote the child's acquisition of skills in a variety of developmental areas, including cognitive processes and social interaction in order to maximize functional independence and developmental homeostasis, and improve the quality of life at home and in the community; and provides consultation for the parents and other professionals working with the family on global development.

Secondary Taxonomies

The provider has reported to the NPI enumerator additional taxonomy codes. Multiple taxonomy codes may represent subspecialties or other areas of specialization the provider maybe licensed to practice.

No. Taxonomy Code Type Classification /
Specialization
License No. (State)
1101YM0800XBehavioral Health & Social Service Providers

Counselor
Mental Health

 

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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 1407797228, 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
4
Unchanged
Pos 3
0
Doubled → 0
Pos 4
7
Unchanged
Pos 5
7
Doubled → 14 → 1 + 4
Pos 6
9
Unchanged
Pos 7
7
Doubled → 14 → 1 + 4
Pos 8
2
Unchanged
Pos 9
2
Doubled → 4
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 0 → 0 7 → 14 → 5 7 → 14 → 5 2 → 4

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 + 4 + 9 + 1 + 4 + 2 + 4 + 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 1407797228.

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1407797228, enumerated as an "individual" on April 04, 2026.

The provider is located at 18 ROBINSON ST APT 21 CAMBRIDGE, MA 02138 and the phone number is (857) 331-8412.

Developmental Therapist with taxonomy code 222Q00000X.