DR. DANA WILLIAMS PT
NPI 1811870108
Physical Therapist - Orthopedic in Concord, MA
NPI Status: Active since July 26, 2025
Contact Information
310 BAKER AVE
CONCORD, MA
ZIP 01742
Phone: (978) 287-8200
- Individual
- Female
- Physical Therapist
- Orthopedic
About DANA WILLIAMS
This page provides the complete NPI Profile along with additional information for Dana Williams, a provider established in Concord, Massachusetts with a medical specialization in Physical Therapist, focusing in orthopedic . The healthcare provider is registered in the NPI registry with number 1811870108 assigned on July 2025. The practitioner's primary taxonomy code is 2251X0800X with license number 24132 (MA). The provider is registered as an individual and her NPI record was last updated one year ago.
- NPI
- 1811870108
- Provider Name
- DR. DANA WILLIAMS PT
- Gender
- Female
- Entity Type
- Individual
- Location Address
- 310 BAKER AVE CONCORD, MA 01742
- Location Phone
- (978) 287-8200
- Mailing Address
- 779 SOMERVILLE AVE SOMERVILLE, MA 02143
- Is Sole Proprietor?
- No
- Enumeration Date
- 07-26-2025
- Last Update Date
- 07-26-2025
- 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
Physical Therapist Orthopedic
- Taxonomy Code
- 2251X0800X
- Type
- Respiratory, Developmental, Rehabilitative and Restorative Service Providers
- License No.
- 24132
- License State
- MA
- Taxonomy Description
- A licensed physical therapist, including but not limited to an individual who is a Board Certified Specialist in Orthopaedic Physical Therapy, who has demonstrated specialized knowledge and skill in human anatomy and physiology, movement science; pathology/pathophysiology, pain science, medical and surgical considerations, orthopaedic physical therapy theory and practice, and critical inquiry for evidence-based practice.
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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 1811870108, we treat the final digit (8) 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 52. The final step is to find the difference between that total and the next multiple of ten (60 - 52 = 8).
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 52 is 60. The difference is the calculated check digit.
Other Providers at the Same Location
The following 8 providers are registered at the same or a nearby location.
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1811870108, enumerated as an "individual" on July 26, 2025.
The provider is located at 310 BAKER AVE CONCORD, MA 01742 and the phone number is (978) 287-8200.
Physical Therapist with taxonomy code 2251X0800X and a focus in Orthopedic.
