DR. CHARLES MARCO AQUILINA PSYD
NPI 1225553902
Psychologist - Addiction (Substance Use Disorder) in Oakland, CA

NPI Status: Active since August 03, 2017

Contact Information

380 W MACARTHUR BLVD
OAKLAND, CA
ZIP 94609
Phone: (510) 251-3917
Fax: (510) 251-3954

NPI Profile Information
Primary Taxonomy
Medicare Participation & PECOS Status
NPI Validation
Other Providers Same Location
Frequently Asked Questions

Individual
Male
Psychologist
Addiction (Substance Use Disorder)
PECOS Enrolled

About CHARLES AQUILINA

This page provides the complete NPI Profile along with additional information for Charles Aquilina, a provider established in Oakland, California with a medical specialization in Psychologist, focusing in addiction (substance use disorder) . The healthcare provider is registered in the NPI registry with number 1225553902 assigned on August 2017. The practitioner's primary taxonomy code is 103TA0400X with license number PSY33521 (CA). The provider is registered as an individual and his NPI record was last updated one year ago.

NPI: 1225553902
Provider Name: DR. CHARLES MARCO AQUILINA PSYD
Gender: Male
Entity Type: Individual
Location Address: 380 W MACARTHUR BLVD OAKLAND, CA 94609
Location Phone: (510) 251-3917
Location Fax: (510) 251-3954
Mailing Address: 380 W MACARTHUR BLVD OAKLAND, CA 94609
Mailing Phone: (510) 251-3917
Mailing Fax: (510) 251-3954
Is Sole Proprietor?: No
Enumeration Date: 08-03-2017
Last Update Date: 09-29-2025
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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: Psychologist Addiction (Substance Use Disorder)
Taxonomy Code: 103TA0400X
Type: Behavioral Health & Social Service Providers
License No.: PSY33521
License State: CA
Taxonomy Description: A psychologist with a proficiency that involves the application of psychological treatment of addiction stemming from the use of alcohol and other psychoactive substances (e.g., nicotine, marijuana, cocaine, heroin) or behavioral addictions (e.g., gambling) with the aim of cessation or reduction of use and/or the amelioration of emotional, behavioral, interpersonal and other problems arising from the addictive behavior.

Medicare Participation & PECOS Enrollment Status

Charles Aquilina is enrolled in PECOS and is eligible to order or refer health care services for Medicare patients. The provider is eligible to order or refer: Part B Clinical Laboratory and Imaging and Durable Medical Equipment (DME).

What is PECOS?
PECOS is the online Medicare enrollment management system or Provider, Enrollment, Chain and Ownership System. The PECOS system is a database of providers who have registered with CMS as providers or suppliers. PECOS is the primary source of information about verified Medicare professionals. Providers that want to participate in this program need to enroll in PECOS with their NPI number to avoid denied claims.

Is the provider registered in PECOS? Yes
Eligible to Order or Refer Part B Clinical Laboratory and Imaging: Yes
Eligible to Order or Refer Durable Medical Equipment (DMEPOS): Yes
Eligible to Order or Refer a Home Health Agency (HHA): No
Eligible to Order or Refer Power Mobility Devices: No

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 1225553902, 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 → 4

Pos 4

Unchanged

Pos 5

Doubled → 10 → 1 + 0

Pos 6

Unchanged

Pos 7

Doubled → 6

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 2 → 4 5 → 10 → 1 3 → 6 0 → 0

Step 2: Add all digits plus the NPI constant

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

2 + 2 + 4 + 5 + 1 + 0 + 5 + 6 + 9 + 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 1225553902.