DR. FREDERIC JOHN-EDWARD WASHBURN DO
NPI 1841811213
Orthopaedic Surgery in San Francisco, CA
NPI Status: Active since April 27, 2020
Contact Information
1500 OWENS ST
SAN FRANCISCO, CA
ZIP 94158
Phone: (415) 353-2808
- Individual
- Male
- Orthopaedic Surgery
About FREDERIC WASHBURN
This page provides the complete NPI Profile along with additional information for Frederic Washburn, a provider established in San Francisco, California with a medical specialization in Orthopaedic Surgery. The healthcare provider is registered in the NPI registry with number 1841811213 assigned on April 2020. The practitioner's primary taxonomy code is 207X00000X with license number 21021 (CA). The provider is registered as an individual and his NPI record was last updated April 2026.
- NPI
- 1841811213
- Provider Name
- DR. FREDERIC JOHN-EDWARD WASHBURN DO
- Gender
- Male
- Entity Type
- Individual
- Location Address
- 1500 OWENS ST SAN FRANCISCO, CA 94158
- Location Phone
- (415) 353-2808
- Mailing Address
- 251 E HURON ST CHICAGO, IL 60611
- Mailing Phone
- (312) 926-2000
- Is Sole Proprietor?
- No
- Enumeration Date
- 04-27-2020
- Last Update Date
- 04-13-2026
- Code Navigator
Location Map
Secondary Locations
- 251 E Huron St
Chicago, IL 60611
(312) 926-2000 - 147 N Brent St
Ventura, CA 93003
(805) 652-5011
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.
- 21021
- License State
- CA
- 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.
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 | 207XX0004X | Allopathic & Osteopathic Physicians | Orthopaedic Surgery | 125085120 (IL) |
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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 1841811213, 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 57. The final step is to find the difference between that total and the next multiple of ten (60 - 57 = 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.
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 57 is 60. 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.
SAN FRANCISCO, CA 94158
SAN FRANCISCO, CA 94158
SAN FRANCISCO, CA 94158
SAN FRANCISCO, CA 94158
SAN FRANCISCO, CA 94158
SAN FRANCISCO, CA 94158
SAN FRANCISCO, CA 94158
SAN FRANCISCO, CA 94158
SAN FRANCISCO, CA 94158
SAN FRANCISCO, CA 94158
SAN FRANCISCO, CA 94158
SAN FRANCISCO, CA 94158
SAN FRANCISCO, CA 94158
SAN FRANCISCO, CA 94158
SAN FRANCISCO, CA 94158
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1841811213, enumerated as an "individual" on April 27, 2020.
The provider is located at 1500 OWENS ST SAN FRANCISCO, CA 94158 and the phone number is (415) 353-2808.
Orthopaedic Surgery with taxonomy code 207X00000X.
