MACKENZIE R GAMBLE OTD
NPI 1659914968
Occupational Therapist in Novato, CA

NPI Status: Active since October 21, 2019

Contact Information

250 BEL MARIN KEYS BLVD STE 103
NOVATO, CA
ZIP 94949
Phone: (415) 339-8800

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  • Individual
  • Female
  • Occupational Therapist

About MACKENZIE GAMBLE

This page provides the complete NPI Profile along with additional information for Mackenzie Gamble, a provider established in Novato, California with a medical specialization in Occupational Therapist. The healthcare provider is registered in the NPI registry with number 1659914968 assigned on October 2019. The practitioner's primary taxonomy code is 225X00000X with license number 22764 (CA). The provider is registered as an individual and her NPI record was last updated one year ago.

NPI
1659914968
Provider Name
MACKENZIE R GAMBLE OTD
Gender
Female
Entity Type
Individual
Location Address
250 BEL MARIN KEYS BLVD STE 103 NOVATO, CA 94949
Location Phone
(415) 339-8800
Mailing Address
1112 RUHLMAN LN NOVATO, CA 94945
Is Sole Proprietor?
No
Enumeration Date
10-21-2019
Last Update Date
10-13-2025
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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

Occupational Therapist

Taxonomy Code
225X00000X
Type
Respiratory, Developmental, Rehabilitative and Restorative Service Providers
License No.
22764
License State
CA
Taxonomy Description
An occupational therapist is a person who has graduated from an entry-level occupational therapy program accredited by the Accreditation Council for Occupational Therapy Education (ACOTE) or predecessor organizations, or approved by the World Federation of Occupational Therapists (WFOT), or an equivalent international occupational therapy education program; has successfully completed a period of supervised fieldwork experience required by the occupational therapy program; has passed a nationally recognized entry-level examination for occupational therapists, and fulfills state requirements for licensure, certification, or registration. An occupational therapist provides interventions based on evaluation and which emphasize the therapeutic use of everyday life activities (i.e., occupations) with individuals or groups for the purpose of facilitating participation in roles and situations and in home, school, workplace, community and other settings. Occupational therapy services are provided for the purpose of promoting health and wellness and are provided to those who have or are at risk for developing an illness, injury, disease, disorder, condition, impairment, disability, activity limitation, or participation restriction. Occupational therapists address the physical, cognitive, psychosocial, sensory, and other aspects of occupational performance in a variety of contexts to support engagement in everyday life activities that affect health, well-being, and quality of life.

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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 1659914968, 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 72. The final step is to find the difference between that total and the next multiple of ten (80 - 72 = 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
6
Unchanged
Pos 3
5
Doubled → 10 → 1 + 0
Pos 4
9
Unchanged
Pos 5
9
Doubled → 18 → 1 + 8
Pos 6
1
Unchanged
Pos 7
4
Doubled → 8
Pos 8
9
Unchanged
Pos 9
6
Doubled → 12 → 1 + 2
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 5 → 10 → 1 9 → 18 → 9 4 → 8 6 → 12 → 3

Step 2: Add all digits plus the NPI constant

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

2 + 6 + 1 + 0 + 9 + 1 + 8 + 1 + 8 + 9 + 1 + 2 + 24 = 72

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

The next multiple of ten after 72 is 80. The difference is the calculated check digit.

80 - 72 = 8
This NPI is valid
The calculated check digit is 8, which matches the last digit of 1659914968.

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1659914968, enumerated as an "individual" on October 21, 2019.

The provider is located at 250 BEL MARIN KEYS BLVD STE 103 NOVATO, CA 94949 and the phone number is (415) 339-8800.

Occupational Therapist with taxonomy code 225X00000X.