XAVIER J. CARO M.D., A MEDICAL CORPORATION
NPI 1477833853
Internal Medicine - Rheumatology in Northridge, CA

NPI Status: Active since August 17, 2011

Contact Information

18350 ROSCOE BLVD STE 418
NORTHRIDGE, CA
ZIP 91325
Phone: (818) 993-0125
Fax: (818) 993-4319

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  • Organization
  • Internal Medicine
  • Rheumatology
  • CLIA Number: 05D0558189
  • CLIA Cert. Type: Physician Office
  • CLIA Exp. Date: 03-19-2027

About XAVIER J. CARO M.D., A MEDICAL CORPORATION

This page provides the complete NPI Profile along with additional information for Xavier J. Caro M.d., A Medical Corporation, an internist established in Northridge, California operating as a Internal Medicine, focusing in rheumatology . The healthcare provider is registered in the NPI registry with number 1477833853 assigned on August 2011. The practitioner's primary taxonomy code is 207RR0500X with license number G28544 (CA). The provider is registered as an organization and their NPI record was last updated 15 years ago. 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 Dr. Xavier Joseph Caro M.d. (Owner)

NPI
1477833853
Provider Name
XAVIER J. CARO M.D., A MEDICAL CORPORATION
Entity Type
Organization
Location Address
18350 ROSCOE BLVD STE 418 NORTHRIDGE, CA 91325
Location Phone
(818) 993-0125
Location Fax
(818) 993-4319
Mailing Address
18350 ROSCOE BLVD STE 418 NORTHRIDGE, CA 91325
Mailing Phone
(818) 993-0125
Mailing Fax
(818) 993-4319
Is Sole Proprietor?
No
Is Organization Subpart?
No
Enumeration Date
08-17-2011
Last Update Date
08-26-2011
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An internist like Xavier J. Caro M.d., A Medical Corporation is a physician who has completed an internal medicine residency and is board-certified or board-eligible in an internist specialty. Internists are trained to care for adults of all ages for many different medical conditions. An internist typically monitors chronic physical conditions, identifies acute diseases, provides family planning, provides counseling about wellness and disease prevention, etc.

Location Map

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

Internal Medicine Rheumatology

Taxonomy Code
207RR0500X
Type
Allopathic & Osteopathic Physicians
License No.
G28544
License State
CA
Taxonomy Description
An internist who treats diseases of joints, muscle, bones and tendons. This specialist diagnoses and treats arthritis, back pain, muscle strains, common athletic injuries and collagen diseases.

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.

Insurance Plans Accepted

According to publicly available information the provider might be accepting the following health plans from these health insurance companies:

Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.

Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.

*Please verify directly with this provider to make sure your insurance plan is currently accepted.

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

DR. XAVIER JOSEPH CARO M.D.

Authorized Official Title
OWNER
Authorized Official Phone
(818) 993-0125

Additional Identifiers

The NPI Enumerator encourages providers to submit additional identifiers with their NPI application although the submission of this information is optional. The additional identifier(s) section includes other numbers or codes currently or formerly used as an identifier for the provider by other public healthcare entities. The identifiers may include UPIN, NSC, OSCAR, DEA, Medicaid State or PIN identification numbers.

Identifier Type / Code Identifier State Identifier Issuer
G28544MEDICARE PIN (08)CA 

CLIA Information

The Clinical Laboratory Improvement Amendments (CLIA) of 1988 applies to facilities or sites that test human specimens for health assessment or to diagnose, prevent, or treat disease. The CLIA Program sets standards for clinical laboratory testing and issues certificates. The NPI / CLIA crosswalk information for this NPI number is:

CLIA Number
05D0558189
Facility Type
Physician Office
Certificate Effective Date
March 20, 2025
Certificate Expiration Date
March 19, 2027
Laboratory Director
XAVIER J. CARO MD
Certificate Type
Certificate of Waiver
Certificate Type Description
This CLIA certificate is issued to Xavier J. Caro M.d., A Medical Corporation to perform only waived tests. CLIA defines waived tests as simple tests with a low risk for an incorrect result. Waived tests include certain tests listed in CLIA regulations, tests cleared by the FDA for home use and tests approved by the FDA for waived status and that meet CLIA waiver criteria.

Reviews for XAVIER J. CARO M.D., A MEDICAL CORPORATION

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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 1477833853, 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
4
Unchanged
Pos 3
7
Doubled → 14 → 1 + 4
Pos 4
7
Unchanged
Pos 5
8
Doubled → 16 → 1 + 6
Pos 6
3
Unchanged
Pos 7
3
Doubled → 6
Pos 8
8
Unchanged
Pos 9
5
Doubled → 10 → 1 + 0
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 7 → 14 → 5 8 → 16 → 7 3 → 6 5 → 10 → 1

Step 2: Add all digits plus the NPI constant

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

2 + 4 + 1 + 4 + 7 + 1 + 6 + 3 + 6 + 8 + 1 + 0 + 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 1477833853.

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1477833853, enumerated as an "organization" on August 17, 2011.

The provider is located at 18350 ROSCOE BLVD STE 418 NORTHRIDGE, CA 91325 and the phone number is (818) 993-0125.

Internal Medicine with taxonomy code 207RR0500X and a focus in Rheumatology.

The provider might be accepting Accepts: Medicare and Medicaid. Please consult your insurance carrier or call the provider to verify.