T & K INCORPORATED
NPI 1215254735
Optometrist in Portland, OR
NPI Status: Active since April 23, 2010
Contact Information
4200 SE 82ND AVE
PORTLAND, OR
ZIP 97266
Phone: (503) 788-5343
- Organization
- Optometrist
- CLIA Number: 38D1051424
- CLIA Cert. Type: Other - PLASMAPHERESIS
- CLIA Exp. Date: 01-21-2028
About T & K INCORPORATED
This page provides the complete NPI Profile along with additional information for T & K Incorporated, a provider established in Portland, Oregon operating as a Optometrist. The healthcare provider is registered in the NPI registry with number 1215254735 assigned on April 2010. The practitioner's primary taxonomy code is 152W00000X with license number 2637AT (OR). The provider is registered as an organization and their NPI record was last updated 11 years ago. T & K Incorporated operates as a Multi-Specialty Group with one or more individual practitioners, who practice different areas of specialization. The authorized official of this NPI record is Mrs. Khanh T Nguyen O.d. (Optometrist)
- NPI
- 1215254735
- Provider Name
- T & K INCORPORATED
- Entity Type
- Organization
- Location Address
- 4200 SE 82ND AVE PORTLAND, OR 97266
- Location Phone
- (503) 788-5343
- Mailing Address
- 5625 SE 48TH AVE PORTLAND, OR 97206
- Mailing Phone
- (503) 317-0332
- Is Sole Proprietor?
- No
- Is Organization Subpart?
- No
- Enumeration Date
- 04-23-2010
- Last Update Date
- 12-04-2015
- 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
Optometrist
- Taxonomy Code
- 152W00000X
- Type
- Eye and Vision Services Providers
- License No.
- 2637AT
- License State
- OR
- Taxonomy Description
- Doctors of optometry (ODs) are the primary health care professionals for the eye. Optometrists examine, diagnose, treat, and manage diseases, injuries, and disorders of the visual system, the eye, and associated structures as well as identify related systemic conditions affecting the eye. An optometrist has completed pre-professional undergraduate education in a college or university and four years of professional education at a college of optometry, leading to the doctor of optometry (O.D.) degree. Some optometrists complete an optional residency in a specific area of practice. Optometrists are eye health care professionals state-licensed to diagnose and treat diseases and disorders of the eye and visual system.
Group Taxonomy 193200000X MULTI-SPECIALTY GROUP
This provider is a business group of one or more individual practitioners, who practice with different areas of specialization.
CLIA Information
The Clinical Laboratory Improvement Amendments (CLIA) of 1988 applies to facilities or sites that test human specimens for health assessment or to diagnose, prevent, or treat disease. The CLIA Program sets standards for clinical laboratory testing and issues certificates. The NPI / CLIA crosswalk information for this NPI number is:
- CLIA Number
- 38D1051424
- Facility Type
- Other - PLASMAPHERESIS
- Certificate Effective Date
- January 22, 2026
- Certificate Expiration Date
- January 21, 2028
- Laboratory Director
- STEPHEN SLATTERY
- Certificate Type
- Certificate of Accreditation
- Certificate Type Description
- This is a CLIA certificate is issued to T & K Incorporated on the basis of the laboratory's accreditation by an accreditation organization approved by CMS. This type of certificate is issued to a laboratories tha perform nonwaived (moderate and/or high complexity) testing.
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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 1215254735, 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 4 providers are registered at the same or a nearby location.
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1215254735, enumerated as an "organization" on April 23, 2010.
The provider is located at 4200 SE 82ND AVE PORTLAND, OR 97266 and the phone number is (503) 788-5343.
Optometrist with taxonomy code 152W00000X.
