PAYTON HUMPHREY PA-C
NPI 1942131990
Physician Assistant - Surgical in Portsmouth, NH
NPI Status: Active since May 28, 2026
Contact Information
1900 LAFAYETTE RD
PORTSMOUTH, NH
ZIP 03801
Phone: (603) 431-1121
This NPI profile has been added to the NPI registry within the last 30 days.
- Individual
- Female
- Physician Assistant
- Surgical
About PAYTON HUMPHREY
This page provides the complete NPI Profile along with additional information for Payton Humphrey, a provider established in Portsmouth, New Hampshire with a medical specialization in Physician Assistant, focusing in surgical . The healthcare provider is registered in the NPI registry with number 1942131990 assigned on May 2026. The practitioner's primary taxonomy code is 363AS0400X. The provider is registered as an individual and her NPI record was last updated May 2026.
- NPI
- 1942131990
- Provider Name
- PAYTON HUMPHREY PA-C
- Gender
- Female
- Entity Type
- Individual
- Location Address
- 1900 LAFAYETTE RD PORTSMOUTH, NH 03801
- Location Phone
- (603) 431-1121
- Mailing Address
- 1900 LAFAYETTE RD PORTSMOUTH, NH 03801
- Is Sole Proprietor?
- No
- Enumeration Date
- 05-28-2026
- Last Update Date
- 05-28-2026
- 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 1942131990, we treat the final digit (0) 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 70. The final step is to find the difference between that total and the next multiple of ten (70 - 70 = 0).
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 70 is 70. 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.
PORTSMOUTH, NH 03801
PORTSMOUTH, NH 03801
PORTSMOUTH, NH 03801
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1942131990, enumerated as an "individual" on May 28, 2026.
The provider is located at 1900 LAFAYETTE RD PORTSMOUTH, NH 03801 and the phone number is (603) 431-1121.
Physician Assistant with taxonomy code 363AS0400X and a focus in Surgical.
