MS. ELLEN CARELLA R.D.O
NPI 1639290638
Technician/Technologist - Optician in Georgetown, MA

NPI Status: Active since April 03, 2007

Contact Information

1 PATRIOT LN
UNIT 12
GEORGETOWN, MA
ZIP 01833
Phone: (978) 595-5359

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  • Individual
  • Female
  • Technician/Technologist
  • Optician

About ELLEN CARELLA

This page provides the complete NPI Profile along with additional information for Ellen Carella, a provider established in Georgetown, Massachusetts with a medical specialization in Technician/technologist, focusing in optician . The healthcare provider is registered in the NPI registry with number 1639290638 assigned on April 2007. The practitioner's primary taxonomy code is 156FX1800X with license number 6021 (MA). The provider is registered as an individual and her NPI record was last updated 15 years ago.

NPI
1639290638
Provider Name
MS. ELLEN CARELLA R.D.O
Other Name
MS. ELLEN VALENTON R.D.O
Other Name Type
Professional Name (2)
Gender
Female
Entity Type
Individual
Location Address
1 PATRIOT LN UNIT 12 GEORGETOWN, MA 01833
Location Phone
(978) 595-5359
Mailing Address
4 GRANT ST 3L HAVERHILL, MA 01830
Mailing Phone
(617) 797-4871
Is Sole Proprietor?
No
Enumeration Date
04-03-2007
Last Update Date
06-03-2011
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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

Technician/Technologist Optician

Taxonomy Code
156FX1800X
Type
Eye and Vision Services Providers
License No.
6021
License State
MA
Taxonomy Description
Opticians help fit eyeglasses and contact lenses, following prescriptions from Ophthalmologists and Optometrists. They also help customers decide which eyeglass frame or contact lenses to buy.

Secondary Taxonomies

The provider has reported to the NPI enumerator additional taxonomy codes. Multiple taxonomy codes may represent subspecialties or other areas of specialization the provider maybe licensed to practice.

No. Taxonomy Code Type Classification /
Specialization
License No. (State)
1156FX1800XEye and Vision Services Providers

Technician/Technologist
Optician

8089 (NY)

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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 1639290638, we treat the final digit (8) 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 72. The final step is to find the difference between that total and the next multiple of ten (80 - 72 = 8).

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
6
Unchanged
Pos 3
3
Doubled → 6
Pos 4
9
Unchanged
Pos 5
2
Doubled → 4
Pos 6
9
Unchanged
Pos 7
0
Doubled → 0
Pos 8
6
Unchanged
Pos 9
3
Doubled → 6
Check
8
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 3 → 6 2 → 4 0 → 0 3 → 6

Step 2: Add all digits plus the NPI constant

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

2 + 6 + 6 + 9 + 4 + 9 + 0 + 6 + 6 + 24 = 72

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

The next multiple of ten after 72 is 80. The difference is the calculated check digit.

80 - 72 = 8
This NPI is valid
The calculated check digit is 8, which matches the last digit of 1639290638.

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1639290638, enumerated as an "individual" on April 03, 2007.

The provider is located at 1 PATRIOT LN UNIT 12 GEORGETOWN, MA 01833 and the phone number is (978) 595-5359.

Technician/Technologist with taxonomy code 156FX1800X and a focus in Optician.