CALIFORNIA EYE CLINIC
NPI 1982909289
Ophthalmology in San Ramon, CA

NPI Status: Active since January 18, 2011

Contact Information

2723 CROW CANYON RD
SUTIE 110
SAN RAMON, CA
ZIP 94583
Phone: (925) 855-9912

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  • Organization
  • Ophthalmology

About CALIFORNIA EYE CLINIC

This page provides the complete NPI Profile along with additional information for California Eye Clinic, a provider established in San Ramon, California operating as a Ophthalmology. The healthcare provider is registered in the NPI registry with number 1982909289 assigned on January 2011. The practitioner's primary taxonomy code is 207W00000X. The provider is registered as an organization and their NPI record was last updated 15 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 authorized official of this NPI record is Dr. Ivan P Hwang Md (Partiner)

NPI
1982909289
Provider Name
CALIFORNIA EYE CLINIC
Entity Type
Organization
Location Address
2723 CROW CANYON RD SUTIE 110 SAN RAMON, CA 94583
Location Phone
(925) 855-9912
Mailing Address
2723 CROW CANYON RD SUITE 110 SAN RAMON, CA 94583
Mailing Phone
(925) 855-9912
Is Sole Proprietor?
No
Is Organization Subpart?
No
Enumeration Date
01-18-2011
Last Update Date
01-18-2011
Code Navigator

Ophthalmologists like California Eye Clinic 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. IVAN P HWANG MD

Authorized Official Title
PARTINER
Authorized Official Phone
(925) 855-9912

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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 1982909289, 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 71. The final step is to find the difference between that total and the next multiple of ten (80 - 71 = 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
9
Unchanged
Pos 3
8
Doubled → 16 → 1 + 6
Pos 4
2
Unchanged
Pos 5
9
Doubled → 18 → 1 + 8
Pos 6
0
Unchanged
Pos 7
9
Doubled → 18 → 1 + 8
Pos 8
2
Unchanged
Pos 9
8
Doubled → 16 → 1 + 6
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 8 → 16 → 7 9 → 18 → 9 9 → 18 → 9 8 → 16 → 7

Step 2: Add all digits plus the NPI constant

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

2 + 9 + 1 + 6 + 2 + 1 + 8 + 0 + 1 + 8 + 2 + 1 + 6 + 24 = 71

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

The next multiple of ten after 71 is 80. The difference is the calculated check digit.

80 - 71 = 9
This NPI is valid
The calculated check digit is 9, which matches the last digit of 1982909289.

Other Providers at the Same Location


The following 8 providers are registered at the same or a nearby location.

Dentist (General Practice)
2723 CROW CANYON RD, SU. 215
SAN RAMON, CA 94583
Marriage & Family Therapist
2723 CROW CANYON RD, STE 214
SAN RAMON, CA 94583
Marriage & Family Therapist
2723 CROW CANYON RD, SUITE 209B
SAN RAMON, CA 94583
Family Medicine
2723 CROW CANYON RD, STE 110
SAN RAMON, CA 94583
Counselor (Mental Health)
2723 CROW CANYON RD, SUITE 209-B
SAN RAMON, CA 94583
Optometrist
2723 CROW CANYON RD, # 102
SAN RAMON, CA 94583
Case Management
2723 CROW CANYON RD, SUITE 214
SAN RAMON, CA 94583
Dietitian, Registered
2723 CROW CANYON RD, # 214
SAN RAMON, CA 94583

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1982909289, enumerated as an "organization" on January 18, 2011.

The provider is located at 2723 CROW CANYON RD SUTIE 110 SAN RAMON, CA 94583 and the phone number is (925) 855-9912.

Ophthalmology with taxonomy code 207W00000X.