THOMAS W WEIR M.D.
NPI 1639278260
Dermatology - Dermatopathology in Bellevue, WA
NPI Status: Active since September 21, 2006
Contact Information
1515 116TH AVE NE STE 202
BELLEVUE, WA
ZIP 98004
Phone: (425) 455-9945
Fax: (425) 455-9947
- Individual
- Male
- Dermatology
- Dermatopathology
About THOMAS WEIR
This page provides the complete NPI Profile along with additional information for Thomas Weir, a provider established in Bellevue, Washington with a medical specialization in Dermatology, focusing in dermatopathology . The healthcare provider is registered in the NPI registry with number 1639278260 assigned on September 2006. The practitioner's primary taxonomy code is 207ND0900X with license number MD00010736 (WA). The provider is registered as an individual and his NPI record was last updated one year ago.
- NPI
- 1639278260
- Provider Name
- THOMAS W WEIR M.D.
- Gender
- Male
- Entity Type
- Individual
- Location Address
- 1515 116TH AVE NE STE 202 BELLEVUE, WA 98004
- Location Phone
- (425) 455-9945
- Location Fax
- (425) 455-9947
- Mailing Address
- 1515 116TH AVE NE STE 202 BELLEVUE, WA 98004
- Mailing Phone
- (425) 455-9945
- Mailing Fax
- (425) 455-9947
- Is Sole Proprietor?
- No
- Enumeration Date
- 09-21-2006
- 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
Dermatology Dermatopathology
- Taxonomy Code
- 207ND0900X
- Type
- Allopathic & Osteopathic Physicians
- License No.
- MD00010736
- License State
- WA
- Taxonomy Description
- A dermatopathologist has the expertise to diagnose and monitor diseases of the skin including infectious, immunologic, degenerative and neoplastic diseases. This entails the examination and interpretation of specially prepared tissue sections, cellular scrapings and smears of skin lesions by means of routine and special (electron and fluorescent) microscopes.
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 | 207N00000X | Allopathic & Osteopathic Physicians | Dermatology | MD00010736 (WA) |
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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 1639278260, we treat the final digit (0) 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 70. The final step is to find the difference between that total and the next multiple of ten (70 - 70 = 0).
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 70 is 70. The difference is the calculated check digit.
Other Providers at the Same Location
The following 3 providers are registered at the same or a nearby location.
BELLEVUE, WA 98004
BELLEVUE, WA 98004
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1639278260, enumerated as an "individual" on September 21, 2006.
The provider is located at 1515 116TH AVE NE STE 202 BELLEVUE, WA 98004 and the phone number is (425) 455-9945.
Dermatology with taxonomy code 207ND0900X and a focus in Dermatopathology.
