AZ SPEECH THERAPY SOLUTIONS LLC
NPI 1710443874
Speech-Language Pathologist in Phoenix, AZ

NPI Status: Active since February 13, 2019

Contact Information

28213 N 21ST AVE
PHOENIX, AZ
ZIP 85085
Phone: (623) 326-5043
Fax: (602) 633-4857

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  • Organization
  • Speech-Language Pathologist

About AZ SPEECH THERAPY SOLUTIONS LLC

This page provides the complete NPI Profile along with additional information for Az Speech Therapy Solutions Llc, a provider established in Phoenix, Arizona operating as a Speech-language Pathologist. The healthcare provider is registered in the NPI registry with number 1710443874 assigned on February 2019. The practitioner's primary taxonomy code is 235Z00000X. The provider is registered as an organization and their NPI record was last updated February 2026. Az Speech Therapy Solutions Llc operates as a Multi-Specialty Group with one or more individual practitioners, who practice different areas of specialization. The authorized official of this NPI record is Serena Singh Ms (Owner/speech-language Pathologist)

NPI
1710443874
Provider Name
AZ SPEECH THERAPY SOLUTIONS LLC
Entity Type
Organization
Location Address
28213 N 21ST AVE PHOENIX, AZ 85085
Location Phone
(623) 326-5043
Location Fax
(602) 633-4857
Mailing Address
28213 N 21ST AVE PHOENIX, AZ 85085
Mailing Phone
(623) 326-5043
Mailing Fax
(602) 633-4857
Is Sole Proprietor?
No
Is Organization Subpart?
No
Enumeration Date
02-13-2019
Last Update Date
02-17-2026
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Location Map

Secondary Locations

  • 21640 N 19th Ave Ste C6
    Phoenix, AZ 85027
    (602) 633-4857
  • 28213 N 21st Ave
    Phoenix, AZ 85085
    (623) 326-5043
  • 21640 N 19th Ave Ste C6
    Phoenix, AZ 85027
    (602) 633-4857

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

Speech-Language Pathologist

Taxonomy Code
235Z00000X
Type
Speech, Language and Hearing Service Providers
Taxonomy Description
The speech-language pathologist is the professional who engages in clinical services, prevention, advocacy, education, administration, and research in the areas of communication and swallowing across the life span from infancy through geriatrics. Speech-language pathologists address typical and atypical impairments and disorders related to communication and swallowing in the areas of speech sound production, resonance, voice, fluency, language (comprehension and expression), cognition, and feeding and swallowing.

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)
1224Z00000XRespiratory, Developmental, Rehabilitative and Restorative Service Providers

Occupational Therapy Assistant

 
2225100000XRespiratory, Developmental, Rehabilitative and Restorative Service Providers

Physical Therapist

 
3225200000XRespiratory, Developmental, Rehabilitative and Restorative Service Providers

Physical Therapy Assistant

 
4225X00000XRespiratory, Developmental, Rehabilitative and Restorative Service Providers

Occupational Therapist

 
52355S0801XSpeech, Language and Hearing Service Providers

Specialist/Technologist
Speech-Language Assistant

 

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.

Authorized Official

The authorized official is the designated individual with the legal authority to make changes to the provider’s official NPI record. For organizations, the authorized official must be a general partner, chairman of the board, CEO, CFO or a direct owner holding at least a 5 percent stake in the medical organization.

Authorized Official Name

SERENA SINGH MS

Authorized Official Title
OWNER/SPEECH-LANGUAGE PATHOLOGIST
Authorized Official Phone
(623) 326-5043

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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 1710443874, 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
7
Unchanged
Pos 3
1
Doubled → 2
Pos 4
0
Unchanged
Pos 5
4
Doubled → 8
Pos 6
4
Unchanged
Pos 7
3
Doubled → 6
Pos 8
8
Unchanged
Pos 9
7
Doubled → 14 → 1 + 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 1 → 2 4 → 8 3 → 6 7 → 14 → 5

Step 2: Add all digits plus the NPI constant

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

2 + 7 + 2 + 0 + 8 + 4 + 6 + 8 + 1 + 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 1710443874.

Other Providers at the Same Location


The following 1 provider is registered at the same or a nearby location.

Speech-Language Pathologist
28213 N 21ST AVE
PHOENIX, AZ 85085

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1710443874, enumerated as an "organization" on February 13, 2019.

The provider is located at 28213 N 21ST AVE PHOENIX, AZ 85085 and the phone number is (623) 326-5043.

Speech-Language Pathologist with taxonomy code 235Z00000X.