DR. CHRISTINA O'SULLIVAN JD, PHD
NPI 1831486000
Psychologist - Forensic in Orange, CA

NPI Status: Active since July 07, 2011

Contact Information

1588 N BATAVIA ST
ORANGE, CA
ZIP 92867
Phone: (559) 498-8265

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  • Individual
  • Female
  • Psychologist
  • Forensic

About CHRISTINA O'SULLIVAN

This page provides the complete NPI Profile along with additional information for Christina O'sullivan, a provider established in Orange, California with a medical specialization in Psychologist, focusing in forensic . The healthcare provider is registered in the NPI registry with number 1831486000 assigned on July 2011. The practitioner's primary taxonomy code is 103TF0200X with license number PSY24233 (CA). The provider is registered as an individual and her NPI record was last updated 14 years ago.

NPI
1831486000
Provider Name
DR. CHRISTINA O'SULLIVAN JD, PHD
Gender
Female
Entity Type
Individual
Location Address
1588 N BATAVIA ST ORANGE, CA 92867
Location Phone
(559) 498-8265
Mailing Address
1588 N BATAVIA ST SUNNYVALE, CA 94088
Is Sole Proprietor?
Yes
Enumeration Date
07-07-2011
Last Update Date
09-14-2012
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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 Forensic

Taxonomy Code
103TF0200X
Type
Behavioral Health & Social Service Providers
License No.
PSY24233
License State
CA
Taxonomy Description
A psychologist whose specialty is characterized by activities primarily intended to provide professional psychological expertise within the judicial and legal systems.

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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 1831486000, we treat the final digit (0) 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 60. The final step is to find the difference between that total and the next multiple of ten (60 - 60 = 0).

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
8
Unchanged
Pos 3
3
Doubled → 6
Pos 4
1
Unchanged
Pos 5
4
Doubled → 8
Pos 6
8
Unchanged
Pos 7
6
Doubled → 12 → 1 + 2
Pos 8
0
Unchanged
Pos 9
0
Doubled → 0
Check
0
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 3 → 6 4 → 8 6 → 12 → 3 0 → 0

Step 2: Add all digits plus the NPI constant

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

2 + 8 + 6 + 1 + 8 + 8 + 1 + 2 + 0 + 0 + 24 = 60

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

The next multiple of ten after 60 is 60. The difference is the calculated check digit.

60 - 60 = 0
This NPI is valid
The calculated check digit is 0, which matches the last digit of 1831486000.

Other Providers at the Same Location


The following 2 providers are registered at the same or a nearby location.

Clinic/Center (Prison Health)
1588 N BATAVIA ST
ORANGE, CA 92867
Clinic/Center (Prison Health)
1588 N BATAVIA ST
ORANGE, CA 92867

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1831486000, enumerated as an "individual" on July 07, 2011.

The provider is located at 1588 N BATAVIA ST ORANGE, CA 92867 and the phone number is (559) 498-8265.

Psychologist with taxonomy code 103TF0200X and a focus in Forensic.