KIRSTEN MADELINE JOHNSON OD
NPI 1841784394
Optometrist in Boston, MA

NPI Status: Active since June 19, 2018

Contact Information

800 WASHINGTON ST
BOSTON, MA
ZIP 02111
Phone: (916) 803-7579

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  • Individual
  • Female
  • Optometrist

About KIRSTEN JOHNSON

This page provides the complete NPI Profile along with additional information for Kirsten Johnson, a provider established in Boston, Massachusetts with a medical specialization in Optometrist. The healthcare provider is registered in the NPI registry with number 1841784394 assigned on June 2018. The practitioner's primary taxonomy code is 152W00000X with license number 008787 (NY). The provider is registered as an individual and her NPI record was last updated 8 years ago.

NPI
1841784394
Provider Name
KIRSTEN MADELINE JOHNSON OD
Gender
Female
Entity Type
Individual
Location Address
800 WASHINGTON ST BOSTON, MA 02111
Location Phone
(916) 803-7579
Mailing Address
15 ENGLEWOOD AVE # 3 BROOKLINE, MA 02445
Mailing Phone
(916) 803-7579
Is Sole Proprietor?
Yes
Enumeration Date
06-19-2018
Last Update Date
06-19-2018
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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

Optometrist

Taxonomy Code
152W00000X
Type
Eye and Vision Services Providers
License No.
008787
License State
NY
Taxonomy Description
Doctors of optometry (ODs) are the primary health care professionals for the eye. Optometrists examine, diagnose, treat, and manage diseases, injuries, and disorders of the visual system, the eye, and associated structures as well as identify related systemic conditions affecting the eye. An optometrist has completed pre-professional undergraduate education in a college or university and four years of professional education at a college of optometry, leading to the doctor of optometry (O.D.) degree. Some optometrists complete an optional residency in a specific area of practice. Optometrists are eye health care professionals state-licensed to diagnose and treat diseases and disorders of the eye and visual system.

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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 1841784394, we treat the final digit (4) 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 76. The final step is to find the difference between that total and the next multiple of ten (80 - 76 = 4).

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
8
Unchanged
Pos 3
4
Doubled → 8
Pos 4
1
Unchanged
Pos 5
7
Doubled → 14 → 1 + 4
Pos 6
8
Unchanged
Pos 7
4
Doubled → 8
Pos 8
3
Unchanged
Pos 9
9
Doubled → 18 → 1 + 8
Check
4
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 4 → 8 7 → 14 → 5 4 → 8 9 → 18 → 9

Step 2: Add all digits plus the NPI constant

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

2 + 8 + 8 + 1 + 1 + 4 + 8 + 8 + 3 + 1 + 8 + 24 = 76

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

The next multiple of ten after 76 is 80. The difference is the calculated check digit.

80 - 76 = 4
This NPI is valid
The calculated check digit is 4, which matches the last digit of 1841784394.

Other Providers at the Same Location


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

Internal Medicine
800 WASHINGTON ST, BOX 63
BOSTON, MA 02111
Psychiatry & Neurology (Psychosomatic Medicine)
800 WASHINGTON ST, TUFTS MEDICAL CENTER BOX 1007
BOSTON, MA 02111
Pediatrics
800 WASHINGTON ST, DEPT. OF PEDIATRICS
BOSTON, MA 02111
Psychiatry & Neurology (Neurology)
800 WASHINGTON ST, #314
BOSTON, MA 02111
Pathology (Clinical Pathology/Laboratory Medicine)
800 WASHINGTON ST, BOX 115
BOSTON, MA 02111
Nurse Practitioner
800 WASHINGTON ST, GI LIVER GROUP P.C.TUFTS MEDICAL CENTER
BOSTON, MA 02111
Pediatrics (Developmental - Behavioral Pediatrics)
800 WASHINGTON ST, BOX 334
BOSTON, MA 02111
Pediatrics
800 WASHINGTON ST, BOX 286 DEPT. OF PEDIATRICS
BOSTON, MA 02111
Specialist
800 WASHINGTON ST, # 450
BOSTON, MA 02111
Anesthesiology
800 WASHINGTON ST, TUFT-NEMC BOX 298
BOSTON, MA 02111
Pediatrics (Developmental - Behavioral Pediatrics)
800 WASHINGTON ST, CCSN # 334
BOSTON, MA 02111
Pediatrics (Pediatric Hematology-Oncology)
800 WASHINGTON ST, FLOATING HOSPITAL FOR CHILDREN AT TUFTS MEDICAL CENTER
BOSTON, MA 02111
Surgery
800 WASHINGTON ST, BOX 7105
BOSTON, MA 02111
Pediatrics (Pediatric Pulmonology)
800 WASHINGTON ST, TMC BOX# 343
BOSTON, MA 02111
Pediatrics (Pediatric Cardiology)
800 WASHINGTON ST, #313
BOSTON, MA 02111
Orthopaedic Surgery (Hand Surgery)
800 WASHINGTON ST, BOX 26
BOSTON, MA 02111
Pediatrics
800 WASHINGTON ST, GENERAL PEDIATRICS - FLOATING HOSPITAL FOR CHILDREN
BOSTON, MA 02111
Pediatrics (Neonatal-Perinatal Medicine)
800 WASHINGTON ST
BOSTON, MA 02111
Emergency Medicine
800 WASHINGTON ST, BOX #311
BOSTON, MA 02111
Psychiatry & Neurology (Neurology with Special Qualifications in Child Neurology)
800 WASHINGTON ST
BOSTON, MA 02111

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1841784394, enumerated as an "individual" on June 19, 2018.

The provider is located at 800 WASHINGTON ST BOSTON, MA 02111 and the phone number is (916) 803-7579.

Optometrist with taxonomy code 152W00000X.