TIMOTHY THEOBALD DDS PLLC
NPI 1508701962
Clinic/Center - Dental in North Chicago, IL
NPI Status: Active since April 22, 2026
Contact Information
2127 GREEN BAY RD
NORTH CHICAGO, IL
ZIP 60064
Phone: (847) 336-8478
- Organization
- Clinic/Center
- Dental
About TIMOTHY THEOBALD DDS PLLC
This page provides the complete NPI Profile along with additional information for Timothy Theobald Dds Pllc, a provider established in North Chicago, Illinois operating as a Clinic/center, focusing in dental . The healthcare provider is registered in the NPI registry with number 1508701962 assigned on April 2026. The practitioner's primary taxonomy code is 261QD0000X. The provider is registered as an organization and their NPI record was last updated April 2026. The authorized official of this NPI record is Dr. Timothy David Theobald (Owner)
- NPI
- 1508701962
- Provider Name
- TIMOTHY THEOBALD DDS PLLC
- Entity Type
- Organization
- Location Address
- 2127 GREEN BAY RD NORTH CHICAGO, IL 60064
- Location Phone
- (847) 336-8478
- Mailing Address
- 2127 GREEN BAY RD NORTH CHICAGO, IL 60064
- Mailing Phone
- (847) 336-8478
- Is Sole Proprietor?
- No
- Is Organization Subpart?
- No
- Enumeration Date
- 04-22-2026
- Last Update Date
- 04-22-2026
- 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
Clinic/Center Dental
- Taxonomy Code
- 261QD0000X
- Type
- Ambulatory Health Care Facilities
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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 1508701962, we treat the final digit (2) 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 58. The final step is to find the difference between that total and the next multiple of ten (60 - 58 = 2).
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 58 is 60. The difference is the calculated check digit.
Other Providers at the Same Location
The following 11 providers are registered at the same or a nearby location.
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1508701962, enumerated as an "organization" on April 22, 2026.
The provider is located at 2127 GREEN BAY RD NORTH CHICAGO, IL 60064 and the phone number is (847) 336-8478.
Clinic/Center with taxonomy code 261QD0000X and a focus in Dental.
