JOHAN THOMAS ZWAAN M.D.
NPI 1710098694
Ophthalmology in San Antonio, TX

NPI Status: Active since August 31, 2006

Contact Information

8038 WURZBACH RD
SUITE 520
SAN ANTONIO, TX
ZIP 78229
Phone: (210) 615-8474
Fax: (210) 615-0919

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  • Individual
  • Male
  • Ophthalmology

About JOHAN ZWAAN

This page provides the complete NPI Profile along with additional information for Johan Zwaan, a provider established in San Antonio, Texas with a medical specialization in Ophthalmology. The healthcare provider is registered in the NPI registry with number 1710098694 assigned on August 2006. The practitioner's primary taxonomy code is 207W00000X with license number H7530 (TX). The provider is registered as an individual and his NPI record was last updated 19 years ago.

NPI
1710098694
Provider Name
JOHAN THOMAS ZWAAN M.D.
Gender
Male
Entity Type
Individual
Location Address
8038 WURZBACH RD SUITE 520 SAN ANTONIO, TX 78229
Location Phone
(210) 615-8474
Location Fax
(210) 615-0919
Mailing Address
8038 WURZBACH RD SUITE 520 SAN ANTONIO, TX 78229
Mailing Phone
(210) 615-8474
Mailing Fax
(210) 615-0919
Is Sole Proprietor?
Yes
Enumeration Date
08-31-2006
Last Update Date
11-07-2007
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Ophthalmologists like Johan Zwaan 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.
H7530
License State
TX
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.

Insurance Plans Accepted

According to publicly available information the provider might be accepting the following health plans from these health insurance companies:

Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.

Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.

*Please verify directly with this provider to make sure your insurance plan is currently accepted.

Additional Identifiers

The NPI Enumerator encourages providers to submit additional identifiers with their NPI application although the submission of this information is optional. The additional identifier(s) section includes other numbers or codes currently or formerly used as an identifier for the provider by other public healthcare entities. The identifiers may include UPIN, NSC, OSCAR, DEA, Medicaid State or PIN identification numbers.

Identifier Type / Code Identifier State Identifier Issuer
8G1980MEDICARE PIN (08)TX 
B76730MEDICARE UPIN (02)TX 

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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 1710098694, we treat the final digit (4) 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 66. The final step is to find the difference between that total and the next multiple of ten (70 - 66 = 4).

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
0
Doubled → 0
Pos 6
9
Unchanged
Pos 7
8
Doubled → 16 → 1 + 6
Pos 8
6
Unchanged
Pos 9
9
Doubled → 18 → 1 + 8
Check
4
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 0 → 0 8 → 16 → 7 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 + 0 + 9 + 1 + 6 + 6 + 1 + 8 + 24 = 66

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

The next multiple of ten after 66 is 70. The difference is the calculated check digit.

70 - 66 = 4
This NPI is valid
The calculated check digit is 4, which matches the last digit of 1710098694.

Other Providers at the Same Location


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

Specialist
8038 WURZBACH RD, SUITE 270
SAN ANTONIO, TX 78229
Specialist
8038 WURZBACH RD
SAN ANTONIO, TX 78229
Family Medicine
8038 WURZBACH RD, 510
SAN ANTONIO, TX 78229
Surgery
8038 WURZBACH RD
SAN ANTONIO, TX 78229
Specialist/Technologist, Other (Nephrology)
8038 WURZBACH RD, #480
SAN ANTONIO, TX 78229
Internal Medicine
8038 WURZBACH RD, SUITE 250
SAN ANTONIO, TX 78229
Psychiatry & Neurology (Child & Adolescent Psychiatry)
8038 WURZBACH RD, PHYSICIANS PLAZA 1 SUITE 680
SAN ANTONIO, TX 78229
Family Medicine
8038 WURZBACH RD, SUITE 250
SAN ANTONIO, TX 78229
Urology
8038 WURZBACH RD, SUITE 430
SAN ANTONIO, TX 78229
Internal Medicine
8038 WURZBACH RD, SUITE 320
SAN ANTONIO, TX 78229
Specialist
8038 WURZBACH RD, STE 420
SAN ANTONIO, TX 78229
Specialist
8038 WURZBACH RD, STE 430
SAN ANTONIO, TX 78229
Urology
8038 WURZBACH RD, STE 430
SAN ANTONIO, TX 78229
Nurse Practitioner (Family)
8038 WURZBACH RD, SUITE 340
SAN ANTONIO, TX 78229
Internal Medicine
8038 WURZBACH RD, SUITE 320
SAN ANTONIO, TX 78229
Internal Medicine (Geriatric Medicine)
8038 WURZBACH RD, SUITE 340
SAN ANTONIO, TX 78229
Hospitalist
8038 WURZBACH RD, SUITE 340
SAN ANTONIO, TX 78229
Family Medicine
8038 WURZBACH RD, SUITE 120
SAN ANTONIO, TX 78229
Nurse Practitioner (Psychiatric/Mental Health)
8038 WURZBACH RD
SAN ANTONIO, TX 78229
Nurse Practitioner
8038 WURZBACH RD, 340
SAN ANTONIO, TX 78229

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1710098694, enumerated as an "individual" on August 31, 2006.

The provider is located at 8038 WURZBACH RD SUITE 520 SAN ANTONIO, TX 78229 and the phone number is (210) 615-8474.

Ophthalmology with taxonomy code 207W00000X.

The provider might be accepting Accepts: Medicare and Medicaid. Please consult your insurance carrier or call the provider to verify.