DR. PETER C. WU M.D.
NPI 1134239981
Surgery - Surgical Oncology in Seattle, WA
NPI Status: Active since August 30, 2006
Contact Information
1660 S COLUMBIAN WAY # S-112
SEATTLE, WA
ZIP 98108
Phone: (206) 764-2141
NPPES record last updated: July 8, 2007. Verified against the NPPES registry weekly; last sync: July 12, 2026.
- Individual
- Male
- Surgery
- Surgical Oncology
About PETER WU
This page provides the complete NPI Profile along with additional information for Peter Wu, a provider established in Seattle, Washington with a medical specialization in Surgery, focusing in surgical oncology . The healthcare provider is registered in the NPI registry with number 1134239981 assigned on August 2006. The practitioner's primary taxonomy code is 2086X0206X with license number MD00044554 (WA). The provider is registered as an individual and his NPI record was last updated 19 years ago.
- NPI
- 1134239981
- Provider Name
- DR. PETER C. WU M.D.
- Gender
- Male
- Entity Type
- Individual
- Location Address
- 1660 S COLUMBIAN WAY # S-112 SEATTLE, WA 98108
- Location Phone
- (206) 764-2141
- Mailing Address
- 1423 NE KATSURA ST ISSAQUAH, WA 98029
- Mailing Phone
- (425) 391-8598
- Is Sole Proprietor?
- No
- Enumeration Date
- 08-30-2006
- Last Update Date
- 07-08-2007
- 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
Surgery Surgical Oncology
- Taxonomy Code
- 2086X0206X
- Type
- Allopathic & Osteopathic Physicians
- License No.
- MD00044554
- License State
- WA
- Taxonomy Description
- A surgical oncologist is a well-qualified surgeon who has obtained additional training and experience in the multidisciplinary approach to the prevention, diagnosis, treatment, and rehabilitation of cancer patients, and devotes a major portion of his or her professional practice to these activities and cancer research.
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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 1134239981, we treat the final digit (1) 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 69. The final step is to find the difference between that total and the next multiple of ten (70 - 69 = 1).
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 69 is 70. The difference is the calculated check digit.
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1134239981, enumerated as an "individual" on August 30, 2006.
The provider is located at 1660 S COLUMBIAN WAY # S-112 SEATTLE, WA 98108 and the phone number is (206) 764-2141.
Surgery with taxonomy code 2086X0206X and a focus in Surgical Oncology.
