Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 30 days.

JEANETTE MARIE MADDIX APRN BC CS
NPI 1316984065
Clinical Nurse Specialist in Sudbury, MA

Active since June 01, 2006
323 BOSTON POST RD, SUDBURY, MA 01776(508) 243-6076(978) 443-3717 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: July 19, 2026.

  • Individual
  • Female
  • Clinical Nurse Specialist

About JEANETTE MADDIX

This page provides the complete NPI Profile along with additional information for Jeanette Maddix, a provider established in Sudbury, Massachusetts with a medical specialization in Clinical Nurse Specialist. The healthcare provider is registered in the NPI registry with number 1316984065 assigned on June 2006. The practitioner's primary taxonomy code is 364S00000X with license number 146433 (MA). The provider is registered as an individual and her NPI record was last updated July 2026.

NPI
1316984065
Provider Name
JEANETTE MARIE MADDIX APRN BC CS
Gender
Female
Entity Type
Individual
Location Address
323 BOSTON POST RD SUDBURY, MA 01776
Location Phone
(508) 243-6076
Location Fax
(978) 443-3717
Mailing Address
43 SAXONY DR SUDBURY, MA 01776
Mailing Phone
(978) 443-6083
Mailing Fax
(978) 443-3717
Is Sole Proprietor?
No
Enumeration Date
06-01-2006
Last Update Date
07-13-2026
Code Navigator

A Clinical Nurse Specialist (CNS) like Jeanette Maddix is a type of advanced practice registered nurse (APRN) that provides direct patient care in various nursing specialties, including pediatrics or psychiatric-mental health. CNSs collaborate with other nurses and medical professionals to improve patient care quality. CNSs are often positioned in leadership roles where they may provide education and mentorship to other nursing personnel. Additionally, CNSs may also conduct research and advocate for certain healthcare policies.

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

Clinical Nurse Specialist

Taxonomy Code
364S00000X
Type
Physician Assistants & Advanced Practice Nursing Providers
License No.
146433
License State
MA
Taxonomy Description
A registered nurse who, through a graduate degree program in nursing, or through a formal post-basic education program or continuing education courses and clinical experience, is expert in a specialty area of nursing practice within one or more of the components of direct patient/client care, consultation, education, research and administration.

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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 1316984065, we treat the final digit (5) 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 65. The final step is to find the difference between that total and the next multiple of ten (70 - 65 = 5).

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.

Pos 1
1
Doubled → 2
Pos 2
3
Unchanged
Pos 3
1
Doubled → 2
Pos 4
6
Unchanged
Pos 5
9
Doubled → 18 → 1 + 8
Pos 6
8
Unchanged
Pos 7
4
Doubled → 8
Pos 8
0
Unchanged
Pos 9
6
Doubled → 12 → 1 + 2
Check
5
Target digit
Regular digit Doubled digit Check digit

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.

1 → 2 1 → 2 9 → 18 → 9 4 → 8 6 → 12 → 3

Step 2: Add all digits plus the NPI constant

Add the transformed values, the unchanged digits, and the constant 24.

2 + 3 + 2 + 6 + 1 + 8 + 8 + 8 + 0 + 1 + 2 + 24 = 65

Step 3: Find the amount needed to reach the next multiple of 10

The next multiple of ten after 65 is 70. The difference is the calculated check digit.

70 - 65 = 5
This NPI is valid
The calculated check digit is 5, which matches the last digit of 1316984065.

Other Providers at the Same Location


The following 7 providers are registered at the same or a nearby location.

Chiropractor
323 BOSTON POST RD, #2A
SUDBURY, MA 01776
Chiropractor
323 BOSTON POST RD, #2A
SUDBURY, MA 01776
Dentist (General Practice)
323 BOSTON POST RD
SUDBURY, MA 01776
Registered Nurse (Psychiatric/Mental Health)
323 BOSTON POST RD, UNIT 4C
SUDBURY, MA 01776
Clinical Nurse Specialist (Psychiatric/Mental Health, Adult)
323 BOSTON POST RD
SUDBURY, MA 01776
Chiropractor
323 BOSTON POST RD, #2A
SUDBURY, MA 01776
Nurse Practitioner (Psychiatric/Mental Health)
323 BOSTON POST RD, UNIT 4C
SUDBURY, MA 01776

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1316984065, enumerated as an "individual" on June 01, 2006.

The provider is located at 323 BOSTON POST RD SUDBURY, MA 01776 and the phone number is (508) 243-6076.

Clinical Nurse Specialist with taxonomy code 364S00000X.