DR. THOMAS A ONSTAD M.D.
NPI 1639155773
Specialist in Eugene, OR
NPI Status: Active since December 20, 2005
Contact Information
923 COUNTRY CLUB RD
SUITE 100
EUGENE, OR
ZIP 97401
Phone: (541) 343-1629
Fax: (541) 485-5944
- Individual
- Male
- Specialist
About THOMAS ONSTAD
This page provides the complete NPI Profile along with additional information for Thomas Onstad, a provider established in Eugene, Oregon with a medical specialization in Specialist. The healthcare provider is registered in the NPI registry with number 1639155773 assigned on December 2005. The practitioner's primary taxonomy code is 174400000X with license number MD07372 (OR). The provider is registered as an individual and his NPI record was last updated 19 years ago.
- NPI
- 1639155773
- Provider Name
- DR. THOMAS A ONSTAD M.D.
- Gender
- Male
- Entity Type
- Individual
- Location Address
- 923 COUNTRY CLUB RD SUITE 100 EUGENE, OR 97401
- Location Phone
- (541) 343-1629
- Location Fax
- (541) 485-5944
- Mailing Address
- 923 COUNTRY CLUB RD SUITE 100 EUGENE, OR 97401
- Mailing Phone
- (541) 343-1629
- Mailing Fax
- (541) 485-5944
- Is Sole Proprietor?
- Yes
- Enumeration Date
- 12-20-2005
- 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
Specialist
- Taxonomy Code
- 174400000X
- Type
- Other Service Providers
- License No.
- MD07372
- License State
- OR
- Taxonomy Description
- An individual educated and trained in an applied knowledge discipline used in the performance of work at a level requiring knowledge and skills beyond or apart from that provided by a general education or liberal arts degree.
Insurance Plans Accepted
According to publicly available information the provider might be accepting the following health plans from these health insurance companies:
Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.
Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.
*Please verify directly with this provider to make sure your insurance plan is currently accepted.
Additional Identifiers
The NPI Enumerator encourages providers to submit additional identifiers with their NPI application although the submission of this information is optional. The additional identifier(s) section includes other numbers or codes currently or formerly used as an identifier for the provider by other public healthcare entities. The identifiers may include UPIN, NSC, OSCAR, DEA, Medicaid State or PIN identification numbers.
| Identifier | Type / Code | Identifier State | Identifier Issuer |
|---|---|---|---|
| 106879 | MEDICARE ID-TYPE UNSPECIFIED (04) | OR | |
| 141481 | MEDICAID (05) | OR | |
| C93448 | MEDICARE UPIN (02) | OR |
Reviews for DR. THOMAS A ONSTAD M.D.
There are currently no reviews for this provider. Be the first person to share your experience with this provider by filling out our review form. Your insights are appreciated and will help others make informed decisions.
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 1639155773, 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 67. The final step is to find the difference between that total and the next multiple of ten (70 - 67 = 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 67 is 70. The difference is the calculated check digit.
Other Providers at the Same Location
The following 1 provider is registered at the same or a nearby location.
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1639155773, enumerated as an "individual" on December 20, 2005.
The provider is located at 923 COUNTRY CLUB RD SUITE 100 EUGENE, OR 97401 and the phone number is (541) 343-1629.
Specialist with taxonomy code 174400000X.
The provider might be accepting Accepts: Medicare and Medicaid. Please consult your insurance carrier or call the provider to verify.
