TERISA MARIE HALL MEDI-CAL CPSS, RADT
NPI 1811860802
Peer Specialist in Ontario, CA

NPI Status: Active since September 25, 2025

Contact Information

3286 E GUASTI RD STE 100
ONTARIO, CA
ZIP 91761
Phone: (909) 476-2023
Fax: (855) 702-2557

NPI Profile Information
Primary Taxonomy
Secondary Locations
NPI Validation
Other Providers Same Location
Frequently Asked Questions

Individual
Female
Peer Specialist

About TERISA HALL

This page provides the complete NPI Profile along with additional information for Terisa Hall, a provider established in Ontario, California with a medical specialization in Peer Specialist. The healthcare provider is registered in the NPI registry with number 1811860802 assigned on September 2025. The practitioner's primary taxonomy code is 175T00000X. The provider is registered as an individual and her NPI record was last updated one year ago.

NPI: 1811860802
Provider Name: TERISA MARIE HALL MEDI-CAL CPSS, RADT
Gender: Female
Entity Type: Individual
Location Address: 3286 E GUASTI RD STE 100 ONTARIO, CA 91761
Location Phone: (909) 476-2023
Location Fax: (855) 702-2557
Mailing Address: 3286 E GUASTI RD STE 100 ONTARIO, CA 91761
Mailing Phone: (909) 476-2023
Mailing Fax: (855) 702-2557
Is Sole Proprietor?: No
Enumeration Date: 09-25-2025
Last Update Date: 09-25-2025
Code Navigator

Location Map

Secondary Locations

227 N Palm Ave
Upland, CA 91786
(909) 256-3897
23950 Prado Ln
Colton, CA 92324
(909) 514-1558
2511 S McCarty Dr
Colton, CA 92324
(909) 264-3181
239 W 9th St
Upland, CA 91786
(909) 981-6121
11646 Encanto Ln
Colton, CA 92324
(909) 222-4073

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: Peer Specialist
Taxonomy Code: 175T00000X
Type: Other Service Providers
License State: CA
Taxonomy Description: Individuals certified to perform peer support services through a training process defined by a government agency, such as the Department of Veterans Affairs or a state mental health department/certification/licensing authority.

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 1811860802, 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

Doubled → 2

Pos 2

Unchanged

Pos 3

Doubled → 2

Pos 4

Unchanged

Pos 5

Doubled → 16 → 1 + 6

Pos 6

Unchanged

Pos 7

Doubled → 0

Pos 8

Unchanged

Pos 9

Doubled → 0

Check

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 8 → 16 → 7 0 → 0 0 → 0

Step 2: Add all digits plus the NPI constant

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

2 + 8 + 2 + 1 + 1 + 6 + 6 + 0 + 8 + 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 1811860802.