CHRISTEN M ANDERSON NP
NPI 1982889986
Nurse Practitioner - Obstetrics & Gynecology in Waltham, MA
NPI Status: Active since January 08, 2008
Contact Information
130 SECOND AVE
WALTHAM, MA
ZIP 02451
Phone: (781) 434-6500
- Individual
- Female
- Nurse Practitioner
- Obstetrics & Gynecology
About CHRISTEN ANDERSON
This page provides the complete NPI Profile along with additional information for Christen Anderson, a provider established in Waltham, Massachusetts with a medical specialization in Nurse Practitioner, focusing in obstetrics & gynecology . The healthcare provider is registered in the NPI registry with number 1982889986 assigned on January 2008. The practitioner's primary taxonomy code is 363LX0001X with license number 264611 (MA). The provider is registered as an individual and her NPI record was last updated December 2025.
- NPI
- 1982889986
- Provider Name
- CHRISTEN M ANDERSON NP
- Gender
- Female
- Entity Type
- Individual
- Location Address
- 130 SECOND AVE WALTHAM, MA 02451
- Location Phone
- (781) 434-6500
- Mailing Address
- 132 DOVER ST MEDFORD, MA 02155
- Mailing Phone
- (781) 866-2648
- Is Sole Proprietor?
- Yes
- Enumeration Date
- 01-08-2008
- Last Update Date
- 12-16-2025
- Code Navigator
A nurse practitioner (NP) like Christen Anderson is an experienced registered nurse with a master’s or doctoral degree and advanced clinical training. Nurse practitioners can work in many different specialties including primary care, pediatrics, cardiology, emergency, women’s health, oncology or geriatrics. Nurse practitioners provide services like physical exams, order laboratory tests, manage diseases, write prescriptions, etc.
Location Map
Secondary Locations
- 132 Dover St
Medford, MA 02155
(781) 866-2648
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
Nurse Practitioner Obstetrics & Gynecology
- Taxonomy Code
- 363LX0001X
- Type
- Physician Assistants & Advanced Practice Nursing Providers
- License No.
- 264611
- License State
- MA
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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 1982889986, we treat the final digit (6) 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 84. The final step is to find the difference between that total and the next multiple of ten (90 - 84 = 6).
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 84 is 90. The difference is the calculated check digit.
Other Providers at the Same Location
The following 3 providers are registered at the same or a nearby location.
WALTHAM, MA 02451
WALTHAM, MA 02451
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1982889986, enumerated as an "individual" on January 08, 2008.
The provider is located at 130 SECOND AVE WALTHAM, MA 02451 and the phone number is (781) 434-6500.
Nurse Practitioner with taxonomy code 363LX0001X and a focus in Obstetrics & Gynecology.
