DR. WILLIAM CHARLES STEWART MD
NPI 1770722845
Ophthalmology in Cheyenne, WY

NPI Status: Active since February 13, 2009

Contact Information

109 E 17TH ST
SUITE 3407
CHEYENNE, WY
ZIP 82001
Phone: (843) 606-0776
Fax: (888) 808-9564

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  • Individual
  • Male
  • Ophthalmology

About WILLIAM STEWART

This page provides the complete NPI Profile along with additional information for William Stewart, a provider established in Cheyenne, Wyoming with a medical specialization in Ophthalmology. The healthcare provider is registered in the NPI registry with number 1770722845 assigned on February 2009. The practitioner's primary taxonomy code is 207W00000X with license number MD 13529 (SC). The provider is registered as an individual and his NPI record was last updated 11 years ago.

NPI
1770722845
Provider Name
DR. WILLIAM CHARLES STEWART MD
Gender
Male
Entity Type
Individual
Location Address
109 E 17TH ST SUITE 3407 CHEYENNE, WY 82001
Location Phone
(843) 606-0776
Location Fax
(888) 808-9564
Mailing Address
15 VINTAGE CANYON ST LAS VEGAS, NV 89141
Mailing Phone
(843) 327-0316
Mailing Fax
(888) 808-9564
Is Sole Proprietor?
Yes
Enumeration Date
02-13-2009
Last Update Date
01-18-2015
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Ophthalmologists like William Stewart 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
License No.
MD 13529
License State
SC
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.

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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 1770722845, we treat the final digit (5) 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 65. The final step is to find the difference between that total and the next multiple of ten (70 - 65 = 5).

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
7
Doubled → 14 → 1 + 4
Pos 4
0
Unchanged
Pos 5
7
Doubled → 14 → 1 + 4
Pos 6
2
Unchanged
Pos 7
2
Doubled → 4
Pos 8
8
Unchanged
Pos 9
4
Doubled → 8
Check
5
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 7 → 14 → 5 7 → 14 → 5 2 → 4 4 → 8

Step 2: Add all digits plus the NPI constant

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

2 + 7 + 1 + 4 + 0 + 1 + 4 + 2 + 4 + 8 + 8 + 24 = 65

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

The next multiple of ten after 65 is 70. The difference is the calculated check digit.

70 - 65 = 5
This NPI is valid
The calculated check digit is 5, which matches the last digit of 1770722845.

Other Providers at the Same Location


The following 6 providers are registered at the same or a nearby location.

Home Health
109 E 17TH ST, SUITE 4293
CHEYENNE, WY 82001
Counselor (Professional)
109 E 17TH ST
CHEYENNE, WY 82001
Community/Behavioral Health
109 E 17TH ST, SUITE 213
CHEYENNE, WY 82001
Social Worker
109 E 17TH ST, SUITE 213
CHEYENNE, WY 82001
Psychologist
109 E 17TH ST, SUITE 35
CHEYENNE, WY 82001
In Home Supportive Care
109 E 17TH ST
CHEYENNE, WY 82001

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1770722845, enumerated as an "individual" on February 13, 2009.

The provider is located at 109 E 17TH ST SUITE 3407 CHEYENNE, WY 82001 and the phone number is (843) 606-0776.

Ophthalmology with taxonomy code 207W00000X.