GLEN ONG O.D.
NPI 1336558212
Optometrist in Boston, MA

NPI Status: Active since August 05, 2014

Contact Information

243 CHARLES STREET
BOSTON, MA
ZIP 02114
Phone: (617) 523-7900

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  • Individual
  • Male
  • Optometrist

About GLEN ONG

This page provides the complete NPI Profile along with additional information for Glen Ong, a provider established in Boston, Massachusetts with a medical specialization in Optometrist. The healthcare provider is registered in the NPI registry with number 1336558212 assigned on August 2014. The practitioner's primary taxonomy code is 152W00000X with license number 5025 (MA). The provider is registered as an individual and his NPI record was last updated 12 years ago.

NPI
1336558212
Provider Name
GLEN ONG O.D.
Gender
Male
Entity Type
Individual
Location Address
243 CHARLES STREET BOSTON, MA 02114
Location Phone
(617) 523-7900
Mailing Address
243 CHARLES STREET BOSTON, MA 02114
Mailing Phone
(617) 523-7900
Is Sole Proprietor?
No
Enumeration Date
08-05-2014
Last Update Date
08-05-2014
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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.
5025
License State
MA
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 1336558212, 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 58. The final step is to find the difference between that total and the next multiple of ten (60 - 58 = 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
3
Unchanged
Pos 3
3
Doubled → 6
Pos 4
6
Unchanged
Pos 5
5
Doubled → 10 → 1 + 0
Pos 6
5
Unchanged
Pos 7
8
Doubled → 16 → 1 + 6
Pos 8
2
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 3 → 6 5 → 10 → 1 8 → 16 → 7 1 → 2

Step 2: Add all digits plus the NPI constant

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

2 + 3 + 6 + 6 + 1 + 0 + 5 + 1 + 6 + 2 + 2 + 24 = 58

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

The next multiple of ten after 58 is 60. The difference is the calculated check digit.

60 - 58 = 2
This NPI is valid
The calculated check digit is 2, which matches the last digit of 1336558212.

Other Providers at the Same Location


The following 15 providers are registered at the same or a nearby location.

Anesthesiology
243 CHARLES STREET, MEEI DEPT OF ANESTHESIOLOGY SUITE 712
BOSTON, MA 02114
Oral & Maxillofacial Surgery
243 CHARLES STREET, MASS EYE AND EAR INFIRMARY
BOSTON, MA 02114
Ophthalmology
243 CHARLES STREET, MASSACHUSETTS EYE & EAR INFIRMARY
BOSTON, MA 02114
Technician/Technologist (Optician)
243 CHARLES STREET
BOSTON, MA 02114
Ophthalmology
243 CHARLES STREET
BOSTON, MA 02114
Pharmacist
243 CHARLES STREET
BOSTON, MA 02114
Pharmacist
243 CHARLES STREET
BOSTON, MA 02114
Otolaryngology
243 CHARLES STREET, MASSACHUSETTS EYE AND EAR INFIRMARY
BOSTON, MA 02114
Ophthalmology
243 CHARLES STREET
BOSTON, MA 02114
Nurse Practitioner (Pediatrics)
243 CHARLES STREET, ANESTHESIA DEPARTMENT
BOSTON, MA 02114
Ophthalmology
243 CHARLES STREET, MASSACHUSETTS EYE AND EAR INFIRMARY
BOSTON, MA 02114
Anesthesiology
243 CHARLES STREET, MASSACHUSETTS EYE AND EAR INFIRMARY
BOSTON, MA 02114
Dermatology
243 CHARLES STREET
BOSTON, MA 02114
Student in an Organized Health Care Education/Training Program
243 CHARLES STREET, MASS EYE & EAR INFIRMARY
BOSTON, MA 02114
Otolaryngology
243 CHARLES STREET, DEPARTMENT OF OTOLARYNGOLOGY - LEVEL 4
BOSTON, MA 02114

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1336558212, enumerated as an "individual" on August 05, 2014.

The provider is located at 243 CHARLES STREET BOSTON, MA 02114 and the phone number is (617) 523-7900.

Optometrist with taxonomy code 152W00000X.