KHOSROW MAHDAVI, M.D., INC
NPI 1124229554
Clinic/Center - Oncology in Newport Beach, CA
NPI Status: Active since May 31, 2007
Contact Information
4000 W COAST HWY
SUITE 3D
NEWPORT BEACH, CA
ZIP 92663
Phone: (949) 642-8566
Fax: (949) 642-0746
- Organization
- Clinic/Center
- Oncology
About KHOSROW MAHDAVI, M.D., INC
This page provides the complete NPI Profile along with additional information for Khosrow Mahdavi, M.d., Inc, a provider established in Newport Beach, California operating as a Clinic/center, focusing in oncology . The healthcare provider is registered in the NPI registry with number 1124229554 assigned on May 2007. The practitioner's primary taxonomy code is 261QX0200X with license number A33589 (CA). The provider is registered as an organization and their NPI record was last updated one year ago. The authorized official of this NPI record is Dr. Khosrow Mahdavi Md (President)
- NPI
- 1124229554
- Provider Name
- KHOSROW MAHDAVI, M.D., INC
- Entity Type
- Organization
- Location Address
- 4000 W COAST HWY SUITE 3D NEWPORT BEACH, CA 92663
- Location Phone
- (949) 642-8566
- Location Fax
- (949) 642-0746
- Mailing Address
- 4000 W COAST HWY SUITE 3D NEWPORT BEACH, CA 92663
- Mailing Phone
- (949) 642-8566
- Mailing Fax
- (949) 642-0746
- Is Sole Proprietor?
- No
- Is Organization Subpart?
- No
- Enumeration Date
- 05-31-2007
- Last Update Date
- 09-11-2025
- Code Navigator
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
Clinic/Center Oncology
- Taxonomy Code
- 261QX0200X
- Type
- Ambulatory Health Care Facilities
- License No.
- A33589
- License State
- CA
- Taxonomy Description
- An entity, facility, or distinct part of a facility providing diagnostic, treatment and prescriptive services related to cancerous conditions. Services include chemotherapy infusions and monitoring of implanted chemotherapeutic agents.
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) |
|---|---|---|---|---|
| 1 | 261QI0500X | Ambulatory Health Care Facilities | Clinic/Center | A33589 (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 1124229554, we treat the final digit (4) 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 56. The final step is to find the difference between that total and the next multiple of ten (60 - 56 = 4).
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.
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.
Step 2: Add all digits plus the NPI constant
Add the transformed values, the unchanged digits, and the constant 24.
Step 3: Find the amount needed to reach the next multiple of 10
The next multiple of ten after 56 is 60. The difference is the calculated check digit.
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1124229554, enumerated as an "organization" on May 31, 2007.
The provider is located at 4000 W COAST HWY SUITE 3D NEWPORT BEACH, CA 92663 and the phone number is (949) 642-8566.
Clinic/Center with taxonomy code 261QX0200X and a focus in Oncology.
