JUSTIN SMITH PA
NPI 1639001407
Physician Assistant - Surgical in Pittsfield, MA
NPI Status: Active since June 03, 2026
Contact Information
725 NORTH ST
PITTSFIELD, MA
ZIP 01201
Phone: (413) 447-2000
- Individual
- Male
- Physician Assistant
- Surgical
About JUSTIN SMITH
This page provides the complete NPI Profile along with additional information for Justin Smith, a provider established in Pittsfield, Massachusetts with a medical specialization in Physician Assistant, focusing in surgical . The healthcare provider is registered in the NPI registry with number 1639001407 assigned on June 2026. The practitioner's primary taxonomy code is 363AS0400X. The provider is registered as an individual and his NPI record was last updated June 2026.
- NPI
- 1639001407
- Provider Name
- JUSTIN SMITH PA
- Gender
- Male
- Entity Type
- Individual
- Location Address
- 725 NORTH ST PITTSFIELD, MA 01201
- Location Phone
- (413) 447-2000
- Mailing Address
- 32 DWIGHT RD MARSHFIELD, MA 02050
- Mailing Phone
- (678) 699-9520
- Is Sole Proprietor?
- No
- Enumeration Date
- 06-03-2026
- Last Update Date
- 06-03-2026
- 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
Physician Assistant Surgical
- Taxonomy Code
- 363AS0400X
- Type
- Physician Assistants & Advanced Practice Nursing Providers
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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 1639001407, we treat the final digit (7) 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 53. The final step is to find the difference between that total and the next multiple of ten (60 - 53 = 7).
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 53 is 60. The difference is the calculated check digit.
Other Providers at the Same Location
The following 20 providers are registered at the same or a nearby location.
PITTSFIELD, MA 01201
PITTSFIELD, MA 01201
PITTSFIELD, MA 01201
PITTSFIELD, MA 01201
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1639001407, enumerated as an "individual" on June 03, 2026.
The provider is located at 725 NORTH ST PITTSFIELD, MA 01201 and the phone number is (413) 447-2000.
Physician Assistant with taxonomy code 363AS0400X and a focus in Surgical.
