MARGARET ANNE GOY CO, LO
NPI 1710815899
Orthotist in Chicago, IL

NPI Status: Active since May 11, 2026

Contact Information

820 S DAMEN AVE
CHICAGO, IL
ZIP 60612
Phone: (312) 569-7118

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  • Individual
  • Female
  • Orthotist

About MARGARET GOY

This page provides the complete NPI Profile along with additional information for Margaret Goy, a provider established in Chicago, Illinois with a medical specialization in Orthotist. The healthcare provider is registered in the NPI registry with number 1710815899 assigned on May 2026. The practitioner's primary taxonomy code is 222Z00000X with license number CO005492 (IL). The provider is registered as an individual and her NPI record was last updated May 2026.

NPI
1710815899
Provider Name
MARGARET ANNE GOY CO, LO
Gender
Female
Entity Type
Individual
Location Address
820 S DAMEN AVE CHICAGO, IL 60612
Location Phone
(312) 569-7118
Mailing Address
820 S DAMEN AVE CHICAGO, IL 60612
Mailing Phone
(312) 569-7118
Is Sole Proprietor?
No
Enumeration Date
05-11-2026
Last Update Date
05-11-2026
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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

Orthotist

Taxonomy Code
222Z00000X
Type
Respiratory, Developmental, Rehabilitative and Restorative Service Providers
License No.
CO005492
License State
IL
Taxonomy Description
A health care professional who is specifically educated and trained to manage comprehensive orthotic patient care, including musculoskeletal and neuromuscular anomalies resulting from injuries or disease processes involving the lower extremity, upper extremity or spinal segment/s and positional deformation of the cranium. Orthotists assess specific patient needs, formulate an appropriate treatment plan, implement the treatment plan and provide follow-up care.

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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 1710815899, we treat the final digit (9) 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 61. The final step is to find the difference between that total and the next multiple of ten (70 - 61 = 9).

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
7
Unchanged
Pos 3
1
Doubled → 2
Pos 4
0
Unchanged
Pos 5
8
Doubled → 16 → 1 + 6
Pos 6
1
Unchanged
Pos 7
5
Doubled → 10 → 1 + 0
Pos 8
8
Unchanged
Pos 9
9
Doubled → 18 → 1 + 8
Check
9
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 1 → 2 8 → 16 → 7 5 → 10 → 1 9 → 18 → 9

Step 2: Add all digits plus the NPI constant

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

2 + 7 + 2 + 0 + 1 + 6 + 1 + 1 + 0 + 8 + 1 + 8 + 24 = 61

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

The next multiple of ten after 61 is 70. The difference is the calculated check digit.

70 - 61 = 9
This NPI is valid
The calculated check digit is 9, which matches the last digit of 1710815899.

Other Providers at the Same Location


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

General Acute Care Hospital (Critical Access)
820 S DAMEN AVE
CHICAGO, IL 60612
Pharmacist
820 S DAMEN AVE
CHICAGO, IL 60612
Internal Medicine
820 S DAMEN AVE
CHICAGO, IL 60612
Nurse Practitioner
820 S DAMEN AVE
CHICAGO, IL 60612
Clinical Nurse Specialist (Critical Care Medicine)
820 S DAMEN AVE, ROOM 4230
CHICAGO, IL 60612
Nurse Practitioner (Adult Health)
820 S DAMEN AVE, MC 118
CHICAGO, IL 60612
Registered Nurse (Psychiatric/Mental Health, Adult)
820 S DAMEN AVE
CHICAGO, IL 60612
Nurse Practitioner
820 S DAMEN AVE, #118
CHICAGO, IL 60612
Nurse Practitioner (Adult Health)
820 S DAMEN AVE
CHICAGO, IL 60612
Nurse Practitioner
820 S DAMEN AVE, NURSING-118
CHICAGO, IL 60612
Registered Nurse (Psychiatric/Mental Health, Adult)
820 S DAMEN AVE
CHICAGO, IL 60612
Nurse Practitioner
820 S DAMEN AVE, EMPLOYEE HEALTH
CHICAGO, IL 60612
Nurse Anesthetist, Certified Registered
820 S DAMEN AVE, DEPT OF ANESTHESIA
CHICAGO, IL 60612
Nurse Practitioner (Family)
820 S DAMEN AVE, JBVAMC (11F)
CHICAGO, IL 60612
Family Medicine (Adult Medicine)
820 S DAMEN AVE
CHICAGO, IL 60612
Psychologist (Clinical)
820 S DAMEN AVE
CHICAGO, IL 60612
Occupational Therapist (Neurorehabilitation)
820 S DAMEN AVE, PM&R #117
CHICAGO, IL 60612
Optometrist
820 S DAMEN AVE, JESSE BROWN VAMC, 170-F
CHICAGO, IL 60612
Physical Medicine & Rehabilitation
820 S DAMEN AVE, M/C 117, PM&R
CHICAGO, IL 60612
Physical Therapist
820 S DAMEN AVE
CHICAGO, IL 60612

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1710815899, enumerated as an "individual" on May 11, 2026.

The provider is located at 820 S DAMEN AVE CHICAGO, IL 60612 and the phone number is (312) 569-7118.

Orthotist with taxonomy code 222Z00000X.