Affiliated with a Castle Connolly Top Hospital
Who is Dr. Chang, Glaucoma Specialist in Livermore, CA?
Where did Dr. Chang go to medical school and complete their residency?
Residency: Washington University, Hematology/Oncology
Medical School: University of Pennsylvania
What languages does Dr. Chang speak?
Dr. Chang and their clinical team can communicate with patients in the following languages:
- English
What conditions does a Glaucoma Specialist like Dr. Chang typically treat?
As a Glaucoma Specialist, Dr. Chang diagnoses, treats, and manages a wide range of conditions. This condition information is derived from anonymized insurance claims and highlights the medical conditions most commonly treated by Dr. Chang. It provides insight into the doctor’s areas of experience and expertise based on real-world patient encounters from the past two years, updated quarterly. Learn more about our claims-based healthcare methodology.
Also known as:
- Primary Open-Angle Glaucoma
- Preglaucoma
- Glaucoma
- Chronic Open-Angle Glaucoma
- Wide-Angle Glaucoma
- POAG
- Early Glaucoma
- Borderline Glaucoma
- Risk of Glaucoma
ICD-10 Codes:
- H401132: Primary open-angle glaucoma, bilateral, moderate stage
- H40003: Preglaucoma, unspecified, bilateral
Also known as:
- Intraocular Lens Implant
- Cataract
- Refractive Errors
- IOL Implant
- Artificial Eye Lens
- Cataract Lens Implant
ICD-10 Codes:
- Z961: Presence of intraocular lens
Also known as:
- Cataract
- Cloudy lens
- Lens clouding
- Eye cloudiness
ICD-10 Codes:
- H2513: Age-related nuclear cataract, bilateral
What procedures does a Glaucoma Specialist like Dr. Chang typically perform?
As a Glaucoma Specialist, Dr. Chang performs a variety of medical procedures. This procedure information is derived from anonymized insurance claims and highlights the medical procedures most commonly performed by Dr. Chang. It provides insight into the doctor’s areas of experience and expertise based on real-world patient encounters from the past two years, updated quarterly. Learn more about our claims-based healthcare methodology.
Also known as:
- Laser Surgery for Secondary Cataract
- Laser Trabeculoplasty
- Cataract Surgery with Glaucoma Drainage Device
- Eye Drug Implant
- YAG Laser Capsulotomy
- Posterior Capsulotomy
- Secondary Cataract Removal
- Laser Eye Surgery
- Glaucoma laser surgery
- Laser eye treatment for glaucoma
- Trabeculoplasty
- Combined Cataract and Glaucoma Surgery
- Phacoemulsification with Aqueous Drainage Device
- IOL Insertion with Glaucoma Stent
- Intraocular Drug Delivery System
- Anterior Segment Drug Implant
- Eye Medication Implant
CPT Codes:
- 66821: Discission of secondary membranous cataract (opacified posterior lens capsule and/or anterior hyaloid); laser surgery (eg, YAG laser) (1 or more stages)
- 65855: Trabeculoplasty by laser surgery
- 66991: Extracapsular cataract removal with insertion of intraocular lens prosthesis (1 stage procedure), manual or mechanical technique (eg, irrigation and aspiration or phacoemulsification); with insertion of intraocular (eg, trabecular meshwork, supraciliary, suprachoroidal) anterior segment aqueous drainage device, without extraocular reservoir, internal approach, one or more
- 0660T: Implantation of anterior segment intraocular nonbiodegradable drug-eluting system, internal approach
Also known as:
- Cataract Removal with Lens Implant
- Extracapsular cataract extraction
- Phacoemulsification
- IOL implantation
CPT Codes:
- 66984: Extracapsular cataract removal with insertion of intraocular lens prosthesis (1 stage procedure), manual or mechanical technique (eg, irrigation and aspiration or phacoemulsification); without endoscopic cyclophotocoagulation
Also known as:
- Complex Cataract Removal with Lens Implant
- Advanced Cataract Surgery
- Phacoemulsification with IOL
- Complex Extracapsular Cataract Extraction
CPT Codes:
- 66982: Extracapsular cataract removal with insertion of intraocular lens prosthesis (1-stage procedure), manual or mechanical technique (eg, irrigation and aspiration or phacoemulsification), complex, requiring devices or techniques not generally used in routine cataract surgery (eg, iris expansion device, suture support for intraocular lens, or primary posterior capsulorrhexis) or performed on patients in the amblyogenic developmental stage; without endoscopic cyclophotocoagulation
Also known as:
- Glaucoma Drainage Device Implant
- Aqueous Shunt Surgery
- Glaucoma Shunt with Graft
- Eye Pressure Shunt
CPT Codes:
- 66180: Aqueous shunt to extraocular equatorial plate reservoir, external approach; with graft
Does Dr. Chang accept my insurance?
Dr. Chang accepts most major insurance plans. Important: Please call our office at (650) 723-4000 before your appointment to verify that your specific plan and network are accepted.
What insurance plans does Dr. Chang accept in Livermore, CA?
Dr. Chang in Livermore, CA accepts plans from many carriers. While this list is updated regularly, it is not a guarantee of coverage.
Top Insurances
Advantage
Blue Shield of California
Cigna Group
CVS Health (formerly Aetna)
Medicaid
Medicare
Other Provider Networks
Santa Cruz County
State of California
UnitedHealth Group
View All Insurances
Where is Dr. Chang's office located?
Dr. Robert Chang's Primary Practice
1133 E Stanley Blvd Ste 111
Livermore, CA 94550
(650) 723-4000
What hospitals are Dr. Chang affiliated with?
Castle Connolly Top Hospital
This doctor is affiliated with a Castle Connolly Top Hospital.
Dr. Chang has admitting privileges at the following hospitals:
Recognitions
Publications
Diagnostic performance of optical coherence tomography ganglion cell, 2014
Corneal changes after a single session of selective laser trabeculoplasty for open-angle glaucoma, 2014
Simple, Low-Cost Smartphone Adapter for Rapid, 2014
Combining Frequency Doubling Technology Perimetry
Myopia and glaucoma: diagnostic and therapeutic challenges, 2013
Fundus Photography Still a Valuable Tool in Glaucoma Care, 2013
A New Look at Corneal Biomechanics, 2013
Timely cataract surgery for improved glaucoma magement, 2012
Glaucoma Diagnostic Accuracy of Ganglion Cell-Inner Plexiform Layer Thickness, 2012
Risk Factors for Visual Field Progression, 2012
Cyclodialysis Cleft, 2012
High Myopia Poses Challenges, 2012
Macular Ganglion Cell-Inner Plexiform Layer, 2011
Myopia and glaucoma., 2011
Reproducibility of Peripapillary Retil Nerve Fiber Layer Thickness, 2010
The Utility of the Monocular Trial Data from the Ocular Hypertension Treatment Study, 2010
Sensitivity and Specificity of Time-Domain versus Spectral, 2009
Comparison of Retil Nerve Fiber Layer Measurements Using Time Domain, 2009
Diagnosing glaucoma progression., 2008
Calibration of fundus images using spectral domain optical coherence tomography, 2008
New developments in optical coherence tomography for glaucoma, 2008
Reproducibility of retil nerve fiber thickness measurements using the stratus OCT in normal, 2005
Prospective Randomized comparison of 2 different methods of 5% povidone, 2005
Sensitivity and specificity of the StratusOCT for perimetric glaucoma, 2005
Three-day application of topical ofloxacin reduces the contamition rate of microsurgical knives in, 2004
Antibiotic resistance patterns of ocular bacterial flora, 2003
Bacterial contamition of paracentesis blades used in cataract surgery, 2002
Antibiotic susceptibility pattern of coagulase, 2002
Multiresistant Staphylococcus epidermidis on the conjunctiva prior to intraocular surgery, 2002
What is Dr. Chang's NPI number?A National Provider Identifier (NPI) is a unique ID number that identifies doctors and healthcare providers nationwide.
Dr. Chang's National Provider Identifier (NPI) number is 1417044280.
What common questions do patients ask about Dr. Chang?
Here are answers to patients Frequently Asked Questions (FAQ’s) about Dr. Chang