LOIDA QUIJANO
NPI 1124966163
Ophthalmology - Retina Specialist in Boston, MA

NPI Status: Active since March 23, 2026

Contact Information

330 BROOKLINE AVE
BOSTON, MA
ZIP 02215
Phone: (617) 632-8422
Fax: (617) 632-9150

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  • Individual
  • Female
  • Ophthalmology
  • Retina Specialist

About LOIDA QUIJANO

This page provides the complete NPI Profile along with additional information for Loida Quijano, a provider established in Boston, Massachusetts with a medical specialization in Ophthalmology, focusing in retina specialist . The healthcare provider is registered in the NPI registry with number 1124966163 assigned on March 2026. The practitioner's primary taxonomy code is 207WX0107X with license number 3020016 (MA). The provider is registered as an individual and her NPI record was last updated March 2026.

NPI
1124966163
Provider Name
LOIDA QUIJANO
Gender
Female
Entity Type
Individual
Location Address
330 BROOKLINE AVE BOSTON, MA 02215
Location Phone
(617) 632-8422
Location Fax
(617) 632-9150
Mailing Address
19555 BENT TREE TER UNIT 103 LEESBURG, VA 20176
Mailing Phone
(907) 821-7401
Is Sole Proprietor?
No
Enumeration Date
03-23-2026
Last Update Date
03-23-2026
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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

Ophthalmology Retina Specialist

Taxonomy Code
207WX0107X
Type
Allopathic & Osteopathic Physicians
License No.
3020016
License State
MA
Taxonomy Description
An ophthalmologist who specializes in the diagnosis and treatment of vitreoretinal diseases.

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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 1124966163, we treat the final digit (3) 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 57. The final step is to find the difference between that total and the next multiple of ten (60 - 57 = 3).

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

Step 2: Add all digits plus the NPI constant

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

2 + 1 + 4 + 4 + 1 + 8 + 6 + 1 + 2 + 1 + 1 + 2 + 24 = 57

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

The next multiple of ten after 57 is 60. The difference is the calculated check digit.

60 - 57 = 3
This NPI is valid
The calculated check digit is 3, which matches the last digit of 1124966163.

Other Providers at the Same Location


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

Obstetrics & Gynecology (Maternal & Fetal Medicine)
330 BROOKLINE AVE, KS 306
BOSTON, MA 02215
Internal Medicine (Cardiovascular Disease)
330 BROOKLINE AVE
BOSTON, MA 02215
Anesthesiology
330 BROOKLINE AVE, DEPT OF ANESTHESIA ST-308
BOSTON, MA 02215
Internal Medicine (Critical Care Medicine)
330 BROOKLINE AVE, GZ 405
BOSTON, MA 02215
Radiology (Radiation Oncology)
330 BROOKLINE AVE, FINARD BUILDING B25
BOSTON, MA 02215
Psychiatry & Neurology (Neurology)
330 BROOKLINE AVE
BOSTON, MA 02215
Pathology (Neuropathology)
330 BROOKLINE AVE, DEPT. OF NEUROLOGY
BOSTON, MA 02215
Internal Medicine (Cardiovascular Disease)
330 BROOKLINE AVE
BOSTON, MA 02215
Hospitalist
330 BROOKLINE AVE
BOSTON, MA 02215
Internal Medicine
330 BROOKLINE AVE
BOSTON, MA 02215
Internal Medicine (Pulmonary Disease)
330 BROOKLINE AVE, GZ-402
BOSTON, MA 02215
Internal Medicine (Pulmonary Disease)
330 BROOKLINE AVE, KSB23, BIDMC PULMONARY
BOSTON, MA 02215
Pathology (Anatomic Pathology)
330 BROOKLINE AVE, DEPT OF MEDICINE
BOSTON, MA 02215
Pediatrics (Neonatal-Perinatal Medicine)
330 BROOKLINE AVE, ROSE BUILDING ROOM 318
BOSTON, MA 02215
Internal Medicine (Gastroenterology)
330 BROOKLINE AVE
BOSTON, MA 02215
Internal Medicine
330 BROOKLINE AVE, SHAPIRO 6
BOSTON, MA 02215
Internal Medicine (Pulmonary Disease)
330 BROOKLINE AVE, BETH ISRAEL DEACONESS MEDICAL CENTER
BOSTON, MA 02215
Internal Medicine (Infectious Disease)
330 BROOKLINE AVE, RESEARCH EAST 113 BETH ISRAEL DEACONESS HOSPITAL
BOSTON, MA 02215
Orthopaedic Surgery
330 BROOKLINE AVE, BIDMC - STONEMAN 10
BOSTON, MA 02215
Optometrist
330 BROOKLINE AVE
BOSTON, MA 02215

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1124966163, enumerated as an "individual" on March 23, 2026.

The provider is located at 330 BROOKLINE AVE BOSTON, MA 02215 and the phone number is (617) 632-8422.

Ophthalmology with taxonomy code 207WX0107X and a focus in Retina Specialist.