MR. GAETANO BERNARDO ALTERIO
NPI 1619238516
Rehabilitation Practitioner in Fairfield, CA

NPI Status: Active since June 06, 2012

Contact Information

275 BECK AVENUE
FAIRFIELD, CA
ZIP 94533
Phone: (707) 784-4900

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  • Individual
  • Male
  • Rehabilitation Practitioner

About GAETANO ALTERIO

This page provides the complete NPI Profile along with additional information for Gaetano Alterio, a provider established in Fairfield, California with a medical specialization in Rehabilitation Practitioner. The healthcare provider is registered in the NPI registry with number 1619238516 assigned on June 2012. The practitioner's primary taxonomy code is 225400000X. The provider is registered as an individual and his NPI record was last updated one year ago.

NPI
1619238516
Provider Name
MR. GAETANO BERNARDO ALTERIO
Other Name
GUY BERNARDO ALTERIO
Other Name Type
Other Name (5)
Gender
Male
Entity Type
Individual
Location Address
275 BECK AVENUE FAIRFIELD, CA 94533
Location Phone
(707) 784-4900
Mailing Address
275 BECK AVE FAIRFIELD, CA 94533
Mailing Phone
(707) 784-8323
Is Sole Proprietor?
No
Enumeration Date
06-06-2012
Last Update Date
06-18-2025
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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

Rehabilitation Practitioner

Taxonomy Code
225400000X
Type
Respiratory, Developmental, Rehabilitative and Restorative Service Providers
Taxonomy Description
A health care practitioner who trains or retrains individuals disabled by disease or injury to help them attain their maximum functional capacity.

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)
1101Y00000XBehavioral Health & Social Service Providers

Counselor

 
2171M00000XOther Service Providers

Case Manager/Care Coordinator

(CA)
3172V00000XOther Service Providers

Community Health Worker

B9234612 (CA)

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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 1619238516, we treat the final digit (6) 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 64. The final step is to find the difference between that total and the next multiple of ten (70 - 64 = 6).

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

Step 2: Add all digits plus the NPI constant

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

2 + 6 + 2 + 9 + 4 + 3 + 1 + 6 + 5 + 2 + 24 = 64

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

The next multiple of ten after 64 is 70. The difference is the calculated check digit.

70 - 64 = 6
This NPI is valid
The calculated check digit is 6, which matches the last digit of 1619238516.

Other Providers at the Same Location


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

Community/Behavioral Health
275 BECK AVENUE
FAIRFIELD, CA 94533

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1619238516, enumerated as an "individual" on June 06, 2012.

The provider is located at 275 BECK AVENUE FAIRFIELD, CA 94533 and the phone number is (707) 784-4900.

Rehabilitation Practitioner with taxonomy code 225400000X.