RETINA SERVICES LTD.
NPI 1043395940
Ophthalmology in Chicago, IL

NPI Status: Active since October 26, 2006

Contact Information

7447 W TALCOTT AVE
145
CHICAGO, IL
ZIP 60631
Phone: (773) 631-4400

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  • Organization
  • Ophthalmology

About RETINA SERVICES LTD.

This page provides the complete NPI Profile along with additional information for Retina Services Ltd., a provider established in Chicago, Illinois operating as a Ophthalmology. The healthcare provider is registered in the NPI registry with number 1043395940 assigned on October 2006. The practitioner's primary taxonomy code is 207W00000X. The provider is registered as an organization and their NPI record was last updated 6 years ago. The organization operates as a Single Specialty Group with one or more individual practitioners, all of who practice with the same area of specialization. The provider's former legal business name is Retina Services Ltd.. The authorized official of this NPI record is Dr. Robert P Schroeder M.d. (President)

NPI
1043395940
Provider Legal Name
RETINA SERVICES LTD.
Other Organization Name
RETINA SERVICES LTD.
Other Name Type
Former Legal Business Name (4)
Entity Type
Organization
Location Address
7447 W TALCOTT AVE 145 CHICAGO, IL 60631
Location Phone
(773) 631-4400
Mailing Address
7447 W TALCOTT AVE 145 CHICAGO, IL 60631
Mailing Phone
(773) 631-4400
Is Sole Proprietor?
No
Is Organization Subpart?
No
Enumeration Date
10-26-2006
Last Update Date
08-22-2020
Code Navigator

Ophthalmologists like Retina Services Ltd. specialize in diagnosing and treating eye conditions. They may perform surgeries to correct vision issues or prevent vision loss due to diseases like glaucoma. Additionally, they can provide eyeglasses, prescribe contact lenses, and offer other vision-related services.

Location Map

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

Taxonomy Code
207W00000X
Type
Allopathic & Osteopathic Physicians
Taxonomy Description
An ophthalmologist has the knowledge and professional skills needed to provide comprehensive eye and vision care. Ophthalmologists are medically trained to diagnose, monitor and medically or surgically treat all ocular and visual disorders. This includes problems affecting the eye and its component structures, the eyelids, the orbit and the visual pathways. In so doing, an ophthalmologist prescribes vision services, including glasses and contact lenses.

Group Taxonomy 193400000X SINGLE SPECIALTY GROUP

This provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.

Authorized Official

The authorized official is the designated individual with the legal authority to make changes to the provider’s official NPI record. For organizations, the authorized official must be a general partner, chairman of the board, CEO, CFO or a direct owner holding at least a 5 percent stake in the medical organization.

Authorized Official Name

DR. ROBERT P SCHROEDER M.D.

Authorized Official Title
PRESIDENT
Authorized Official Phone
(773) 631-4400

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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 1043395940, we treat the final digit (0) 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 70. The final step is to find the difference between that total and the next multiple of ten (70 - 70 = 0).

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

Step 2: Add all digits plus the NPI constant

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

2 + 0 + 8 + 3 + 6 + 9 + 1 + 0 + 9 + 8 + 24 = 70

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

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

70 - 70 = 0
This NPI is valid
The calculated check digit is 0, which matches the last digit of 1043395940.

Other Providers at the Same Location


The following 19 providers are registered at the same or a nearby location.

Internal Medicine (Clinical Cardiac Electrophysiology)
7447 W TALCOTT AVE, SUITE 358
CHICAGO, IL 60631
Ophthalmology
7447 W TALCOTT AVE, SUITE 406
CHICAGO, IL 60631
Family Medicine
7447 W TALCOTT AVE, SUITE 216
CHICAGO, IL 60631
Internal Medicine (Interventional Cardiology)
7447 W TALCOTT AVE, SUITE 222
CHICAGO, IL 60631
Internal Medicine (Interventional Cardiology)
7447 W TALCOTT AVE, SUITE 222
CHICAGO, IL 60631
Internal Medicine (Cardiovascular Disease)
7447 W TALCOTT AVE, SUITE 262
CHICAGO, IL 60631
Internal Medicine
7447 W TALCOTT AVE, SUITE 262
CHICAGO, IL 60631
Otolaryngology
7447 W TALCOTT AVE, SUITE 360
CHICAGO, IL 60631
Family Medicine
7447 W TALCOTT AVE, #204
CHICAGO, IL 60631
Family Medicine
7447 W TALCOTT AVE, 204
CHICAGO, IL 60631
Internal Medicine
7447 W TALCOTT AVE, SUITE 304
CHICAGO, IL 60631
Internal Medicine (Cardiovascular Disease)
7447 W TALCOTT AVE, SUITE 304
CHICAGO, IL 60631
Internal Medicine (Cardiovascular Disease)
7447 W TALCOTT AVE, SUITE 304
CHICAGO, IL 60631
Pediatrics
7447 W TALCOTT AVE, SUITE 312
CHICAGO, IL 60631
Radiology (Radiation Oncology)
7447 W TALCOTT AVE, BUILDING C
CHICAGO, IL 60631
Family Medicine
7447 W TALCOTT AVE, STE 500, NORTHWEST ORTHOPAEDIC ASSOCIATES LTD
CHICAGO, IL 60631
Otolaryngology
7447 W TALCOTT AVE, SUITE 316
CHICAGO, IL 60631
Psychologist (Clinical)
7447 W TALCOTT AVE, SUITE 333
CHICAGO, IL 60631
Podiatrist (Foot & Ankle Surgery)
7447 W TALCOTT AVE, STE 214
CHICAGO, IL 60631

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1043395940, enumerated as an "organization" on October 26, 2006.

The provider is located at 7447 W TALCOTT AVE 145 CHICAGO, IL 60631 and the phone number is (773) 631-4400.

Ophthalmology with taxonomy code 207W00000X.