CATHY SIZER NP
NPI 1467449512
Nurse Practitioner - Pediatrics in Westford, MA

NPI Status: Active since October 04, 2005

Contact Information

133 LITTLETON RD
SUITE 101
WESTFORD, MA
ZIP 01886
Phone: (978) 577-0437
Fax: (978) 692-9904

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  • Individual
  • Female
  • Nurse Practitioner
  • Pediatrics

About CATHY SIZER

This page provides the complete NPI Profile along with additional information for Cathy Sizer, a provider established in Westford, Massachusetts with a medical specialization in Nurse Practitioner, focusing in pediatrics . The healthcare provider is registered in the NPI registry with number 1467449512 assigned on October 2005. The practitioner's primary taxonomy code is 363LP0200X with license number 153270 (MA). The provider is registered as an individual and her NPI record was last updated 19 years ago.

NPI
1467449512
Provider Name
CATHY SIZER NP
Gender
Female
Entity Type
Individual
Location Address
133 LITTLETON RD SUITE 101 WESTFORD, MA 01886
Location Phone
(978) 577-0437
Location Fax
(978) 692-9904
Mailing Address
346 BACON ST WALTHAM, MA 02451
Is Sole Proprietor?
Yes
Enumeration Date
10-04-2005
Last Update Date
07-08-2007
Code Navigator

A nurse practitioner (NP) like Cathy Sizer 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

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 Pediatrics

Taxonomy Code
363LP0200X
Type
Physician Assistants & Advanced Practice Nursing Providers
License No.
153270
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 1467449512, we treat the final digit (2) 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 68. The final step is to find the difference between that total and the next multiple of ten (70 - 68 = 2).

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

Step 2: Add all digits plus the NPI constant

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

2 + 4 + 1 + 2 + 7 + 8 + 4 + 1 + 8 + 5 + 2 + 24 = 68

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

The next multiple of ten after 68 is 70. The difference is the calculated check digit.

70 - 68 = 2
This NPI is valid
The calculated check digit is 2, which matches the last digit of 1467449512.

Other Providers at the Same Location


The following 20 providers are registered at the same or a nearby location.

Pediatrics
133 LITTLETON RD, SUITE 101
WESTFORD, MA 01886
Pediatrics
133 LITTLETON RD, SUITE 101
WESTFORD, MA 01886
Pediatrics
133 LITTLETON RD, SUITE 101
WESTFORD, MA 01886
Pediatrics
133 LITTLETON RD, SUITE 101
WESTFORD, MA 01886
Pediatrics
133 LITTLETON RD, SUITE 101
WESTFORD, MA 01886
Dermatology
133 LITTLETON RD, SUITE 205
WESTFORD, MA 01886
Internal Medicine
133 LITTLETON RD, SUITE 202
WESTFORD, MA 01886
Internal Medicine
133 LITTLETON RD, SUITE 202
WESTFORD, MA 01886
Internal Medicine
133 LITTLETON RD, SUITE 202
WESTFORD, MA 01886
Internal Medicine
133 LITTLETON RD, SUITE 202
WESTFORD, MA 01886
Internal Medicine
133 LITTLETON RD, SUITE 202
WESTFORD, MA 01886
Family Medicine
133 LITTLETON RD, SUITE 202
WESTFORD, MA 01886
Nurse Practitioner (Pediatrics)
133 LITTLETON RD, SUITE 101
WESTFORD, MA 01886
Dentist (General Practice)
133 LITTLETON RD, SUITE 203
WESTFORD, MA 01886
Pediatrics
133 LITTLETON RD, SUITE 101
WESTFORD, MA 01886
Nurse Practitioner (Adult Health)
133 LITTLETON RD, SUITE 202
WESTFORD, MA 01886
Dentist
133 LITTLETON RD, SUITE #203
WESTFORD, MA 01886
Clinic/Center (Urgent Care)
133 LITTLETON RD, SUITE 101
WESTFORD, MA 01886
Nurse Practitioner (Pediatrics)
133 LITTLETON RD, SUITE 101
WESTFORD, MA 01886
Internal Medicine
133 LITTLETON RD, SUITE 202
WESTFORD, MA 01886

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1467449512, enumerated as an "individual" on October 04, 2005.

The provider is located at 133 LITTLETON RD SUITE 101 WESTFORD, MA 01886 and the phone number is (978) 577-0437.

Nurse Practitioner with taxonomy code 363LP0200X and a focus in Pediatrics.