WILLIAM JAMES KARAKASH MD
NPI 1285432195
Orthopaedic Surgery in Chicago, IL
NPI Status: Active since March 05, 2025
Contact Information
251 E HURON ST
CHICAGO, IL
ZIP 60611
Phone: (303) 929-0961
Some details in this NPI profile have been updated in the NPI registry within the last 30 days.
- Individual
- Male
- Orthopaedic Surgery
About WILLIAM KARAKASH
This page provides the complete NPI Profile along with additional information for William Karakash, a provider established in Chicago, Illinois with a medical specialization in Orthopaedic Surgery. The healthcare provider is registered in the NPI registry with number 1285432195 assigned on March 2025. The practitioner's primary taxonomy code is 207X00000X with license number 125.087908 (IL). The provider is registered as an individual and his NPI record was last updated June 2026.
- NPI
- 1285432195
- Provider Name
- WILLIAM JAMES KARAKASH MD
- Gender
- Male
- Entity Type
- Individual
- Location Address
- 251 E HURON ST CHICAGO, IL 60611
- Location Phone
- (303) 929-0961
- Mailing Address
- 1636 N ORCHARD ST APT 3 CHICAGO, IL 60614
- Mailing Phone
- (303) 929-0961
- Is Sole Proprietor?
- No
- Enumeration Date
- 03-05-2025
- Last Update Date
- 06-16-2026
- 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
Orthopaedic Surgery
- Taxonomy Code
- 207X00000X
- Type
- Allopathic & Osteopathic Physicians
- License No.
- 125.087908
- License State
- IL
- Taxonomy Description
- An orthopaedic surgeon is trained in the preservation, investigation and restoration of the form and function of the extremities, spine and associated structures by medical, surgical and physical means. An orthopaedic surgeon is involved with the care of patients whose musculoskeletal problems include congenital deformities, trauma, infections, tumors, metabolic disturbances of the musculoskeletal system, deformities, injuries and degenerative diseases of the spine, hands, feet, knee, hip, shoulder and elbow in children and adults. An orthopaedic surgeon is also concerned with primary and secondary muscular problems and the effects of central or peripheral nervous system lesions of the musculoskeletal system.
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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 1285432195, we treat the final digit (5) 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 65. The final step is to find the difference between that total and the next multiple of ten (70 - 65 = 5).
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 65 is 70. The difference is the calculated check digit.
Other Providers at the Same Location
The following 20 providers are registered at the same or a nearby location.
CHICAGO, IL 60611
CHICAGO, IL 60611
CHICAGO, IL 60611
CHICAGO, IL 60611
CHICAGO, IL 60611
CHICAGO, IL 60611
CHICAGO, IL 60611
CHICAGO, IL 60611
CHICAGO, IL 60611
CHICAGO, IL 60611
CHICAGO, IL 60611
CHICAGO, IL 60611
CHICAGO, IL 60611
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1285432195, enumerated as an "individual" on March 05, 2025.
The provider is located at 251 E HURON ST CHICAGO, IL 60611 and the phone number is (303) 929-0961.
Orthopaedic Surgery with taxonomy code 207X00000X.
