PATHOLOGY ASSOCIATES OF ARCADIA
NPI 1659633493
Pathology - Anatomic Pathology & Clinical Pathology in Pasadena, CA

NPI Status: Active since June 07, 2012

Contact Information

405 LINDA VISTA AVE
PASADENA, CA
ZIP 91105
Phone: (323) 409-4600
Fax: (323) 441-8183

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  • Organization
  • Pathology
  • Anatomic Pathology & Clinical Pathology

About PATHOLOGY ASSOCIATES OF ARCADIA

This page provides the complete NPI Profile along with additional information for Pathology Associates Of Arcadia, a provider established in Pasadena, California operating as a Pathology, focusing in anatomic pathology & clinical pathology . The healthcare provider is registered in the NPI registry with number 1659633493 assigned on June 2012. The practitioner's primary taxonomy code is 207ZP0102X with license number A34284 (CA). The provider is registered as an organization and their NPI record was last updated March 2026. The organization operates as a Single Specialty Group with one or more individual practitioners, all of who practice with the same area of specialization. The authorized official of this NPI record is Parakrama T Chandrasoma Md (President)

NPI
1659633493
Provider Name
PATHOLOGY ASSOCIATES OF ARCADIA
Entity Type
Organization
Location Address
405 LINDA VISTA AVE PASADENA, CA 91105
Location Phone
(323) 409-4600
Location Fax
(323) 441-8183
Mailing Address
5700 SOUTHWYCK BLVD TOLEDO, OH 43614
Mailing Phone
(800) 288-8325
Mailing Fax
(323) 441-8183
Is Sole Proprietor?
No
Is Organization Subpart?
No
Enumeration Date
06-07-2012
Last Update Date
03-06-2026
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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

Pathology Anatomic Pathology & Clinical Pathology

Taxonomy Code
207ZP0102X
Type
Allopathic & Osteopathic Physicians
License No.
A34284
License State
CA
Taxonomy Description
A pathologist deals with the causes and nature of disease and contributes to diagnosis, prognosis and treatment through knowledge gained by the laboratory application of the biologic, chemical and physical sciences. A pathologist uses information gathered from the microscopic examination of tissue specimens, cells and body fluids, and from clinical laboratory tests on body fluids and secretions for the diagnosis, exclusion and monitoring of disease.

Group Taxonomy 193400000X SINGLE SPECIALTY GROUP

This provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.

Authorized Official

The authorized official is the designated individual with the legal authority to make changes to the provider’s official NPI record. For organizations, the authorized official must be a general partner, chairman of the board, CEO, CFO or a direct owner holding at least a 5 percent stake in the medical organization.

Authorized Official Name

PARAKRAMA T CHANDRASOMA MD

Authorized Official Title
PRESIDENT
Authorized Official Phone
(800) 288-8325

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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 1659633493, we treat the final digit (3) 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 67. The final step is to find the difference between that total and the next multiple of ten (70 - 67 = 3).

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
6
Doubled → 12 → 1 + 2
Pos 6
3
Unchanged
Pos 7
3
Doubled → 6
Pos 8
4
Unchanged
Pos 9
9
Doubled → 18 → 1 + 8
Check
3
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 6 → 12 → 3 3 → 6 9 → 18 → 9

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 + 2 + 3 + 6 + 4 + 1 + 8 + 24 = 67

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

The next multiple of ten after 67 is 70. The difference is the calculated check digit.

70 - 67 = 3
This NPI is valid
The calculated check digit is 3, which matches the last digit of 1659633493.

Other Providers at the Same Location


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

Pathology (Anatomic Pathology & Clinical Pathology)
405 LINDA VISTA AVE
PASADENA, CA 91105
Pathology (Anatomic Pathology & Clinical Pathology)
405 LINDA VISTA AVE
PASADENA, CA 91105

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1659633493, enumerated as an "organization" on June 07, 2012.

The provider is located at 405 LINDA VISTA AVE PASADENA, CA 91105 and the phone number is (323) 409-4600.

Pathology with taxonomy code 207ZP0102X and a focus in Anatomic Pathology & Clinical Pathology.