STEPHEN P CASSIS MD
NPI 1770663866
Ophthalmology in Charleston, WV
NPI Status: Active since October 16, 2006
Contact Information
301 49TH ST SE STE A
CHARLESTON, WV
ZIP 25304
Phone: (304) 925-3937
Fax: (304) 925-4336
- Organization
- Ophthalmology
- CLIA Number: 51D0690271
- CLIA Cert. Type: Physician Office
- CLIA Exp. Date: 08-31-2026
About STEPHEN P CASSIS MD
This page provides the complete NPI Profile along with additional information for Stephen P Cassis Md, a provider established in Charleston, West Virginia operating as a Ophthalmology. The healthcare provider is registered in the NPI registry with number 1770663866 assigned on October 2006. The practitioner's primary taxonomy code is 207W00000X with license number 12950 (WV). The provider is registered as an organization and their NPI record was last updated 10 years ago. Stephen P Cassis Md operates as a Multi-Specialty Group with one or more individual practitioners, who practice different areas of specialization. The authorized official of this NPI record is Mrs. Melisa Cassis (Office Manager)
- NPI
- 1770663866
- Provider Name
- STEPHEN P CASSIS MD
- Entity Type
- Organization
- Location Address
- 301 49TH ST SE STE A CHARLESTON, WV 25304
- Location Phone
- (304) 925-3937
- Location Fax
- (304) 925-4336
- Mailing Address
- 301 49TH ST SE STE A CHARLESTON, WV 25304
- Mailing Phone
- (304) 925-3937
- Mailing Fax
- (304) 925-4336
- Is Sole Proprietor?
- No
- Is Organization Subpart?
- No
- Enumeration Date
- 10-16-2006
- Last Update Date
- 10-11-2016
- Code Navigator
Ophthalmologists like Stephen P Cassis Md 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.
- 12950
- License State
- WV
- 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.
Secondary Taxonomies
The provider has reported to the NPI enumerator additional taxonomy codes. Multiple taxonomy codes may represent subspecialties or other areas of specialization the provider maybe licensed to practice.
| No. | Taxonomy Code | Type | Classification / Specialization |
License No. (State) |
|---|---|---|---|---|
| 1 | 152W00000X | Eye and Vision Services Providers | Optometrist | 2026-IOD1 (WV) |
Group Taxonomy 193200000X MULTI-SPECIALTY GROUP
This provider is a business group of one or more individual practitioners, who practice with different areas of specialization.
CLIA Information
The Clinical Laboratory Improvement Amendments (CLIA) of 1988 applies to facilities or sites that test human specimens for health assessment or to diagnose, prevent, or treat disease. The CLIA Program sets standards for clinical laboratory testing and issues certificates. The NPI / CLIA crosswalk information for this NPI number is:
- CLIA Number
- 51D0690271
- Facility Type
- Physician Office
- Certificate Effective Date
- September 01, 2024
- Certificate Expiration Date
- August 31, 2026
- Laboratory Director
- STEPHEN K. MILROY MD
- Certificate Type
- Certificate for Provider-Performed Microscopy Procedures (PPMP)
- Certificate Type Description
- This CLIA certificate is issued to Stephen P Cassis Md in which a physician, midlevel practitioner or dentist that performs specific microscopy procedures during the course of a patient's visit. A limited list of provider-performed microscopy procedures is included under this certificate type, which are categorized as moderate complexity testing.
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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 1770663866, we treat the final digit (6) 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 64. The final step is to find the difference between that total and the next multiple of ten (70 - 64 = 6).
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.
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.
Step 2: Add all digits plus the NPI constant
Add the transformed values, the unchanged digits, and the constant 24.
Step 3: Find the amount needed to reach the next multiple of 10
The next multiple of ten after 64 is 70. The difference is the calculated check digit.
Other Providers at the Same Location
The following 1 provider is registered at the same or a nearby location.
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1770663866, enumerated as an "organization" on October 16, 2006.
The provider is located at 301 49TH ST SE STE A CHARLESTON, WV 25304 and the phone number is (304) 925-3937.
Ophthalmology with taxonomy code 207W00000X.
