DR. THERESA GAN LEUNG M.D.
NPI 1255597860
Ophthalmology in Sugar Land, TX

NPI Status: Active since August 03, 2008

Contact Information

3515 TOWN CENTER BLVD S
SUGAR LAND, TX
ZIP 77479
Phone: (281) 277-8400
Fax: (281) 277-8408

NPI Profile Information
Primary Taxonomy
Secondary Taxonomies
Insurance Plans Accepted
NPI Validation
Other Providers Same Location
Frequently Asked Questions

Individual
Female
Ophthalmology
Accepts Insurance

About THERESA LEUNG

This page provides the complete NPI Profile along with additional information for Theresa Leung, a provider established in Sugar Land, Texas with a medical specialization in Ophthalmology. The healthcare provider is registered in the NPI registry with number 1255597860 assigned on August 2008. The practitioner's primary taxonomy code is 207W00000X with license number Q5212 (TX). The provider is registered as an individual and her NPI record was last updated 8 years ago.

NPI: 1255597860
Provider Name: DR. THERESA GAN LEUNG M.D.
Gender: Female
Entity Type: Individual
Location Address: 3515 TOWN CENTER BLVD S SUGAR LAND, TX 77479
Location Phone: (281) 277-8400
Location Fax: (281) 277-8408
Mailing Address: 3515 TOWN CENTER BLVD S SUGAR LAND, TX 77479
Mailing Phone: (281) 277-8400
Mailing Fax: (281) 277-8408
Is Sole Proprietor?: No
Enumeration Date: 08-03-2008
Last Update Date: 04-12-2017
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Ophthalmologists like Theresa Leung 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.: Q5212
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.

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	207W00000X	Allopathic & Osteopathic Physicians	Ophthalmology	D0070675 (MD)
2	207WX0108X	Allopathic & Osteopathic Physicians	Ophthalmology Uveitis and Ocular Inflammatory Disease	Q5212 (TX)

Insurance Plans Accepted

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

Blue Cross and Blue Shield of Texas

Blue Advantage Bronze HMO? 204 - HMO
Blue Advantage Bronze HMO? 301 - HMO
Blue Advantage Bronze HMO? Standard - HMO
Blue Advantage Gold HMO? 206 - HMO
Blue Advantage Gold HMO? 603 - HMO
Blue Advantage Gold HMO? Standard - HMO
Blue Advantage Plus Bronze? 303 - POS
Blue Advantage Plus Bronze? 305 - POS
Blue Advantage Plus Bronze? Standard - POS
Blue Advantage Plus Gold? 203 - POS
Blue Advantage Plus Gold? 803 - POS
Blue Advantage Plus Gold? Standard - POS
Blue Advantage Plus Silver? 202 - POS
Blue Advantage Plus Silver? 605 - POS
Blue Advantage Plus Silver? Standard - POS
Blue Advantage Security HMO? 200 - HMO
Blue Advantage Silver HMO? 205 - HMO
Blue Advantage Silver HMO? 801 - HMO
Blue Advantage Silver HMO? Standard - HMO

Medicare

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

Medicaid

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
036176300	MEDICAID (05)	MD
358593701	MEDICAID (05)	TX
507193YZ8U	MEDICARE PIN (08)	TX
186742ZASQ	MEDICARE PIN (08)	MD
D0070675	OTHER (01)	MD	STATE LICENSE

NPI Validation Check Digit Calculation

The following table explains the step by step NPI number validation process using the ISO standard Luhn algorithm.

Start with the original NPI number, the last digit is the check digit and is not used in the calculation.
1	2	5	5	5	9	7	8	6	0
Step 1: Double the value of the alternate digits, beginning with the rightmost digit.
2	2	10	5	10	9	14	8	12
Step 2: Add all the doubled and unaffected individual digits from step 1 plus the constant number 24.
2 + 2 + 1 + 0 + 5 + 1 + 0 + 9 + 1 + 4 + 8 + 1 + 2 + 24 = 60
Step 3: because the number obtained in step 2 ends in zero, the check digit is zero.
									0

The NPI number 1255597860 is valid because the calculated check digit 0 using the Luhn validation algorithm matches the last digit of the original NPI number.