Accepting patients
Affiliated with a Castle Connolly Top Hospital
Who is Dr. Guan, Glaucoma Specialist in San Marcos, CA?
Dr. Howard Guan, MD is a Glaucoma Specialist, who primarily practices in San Marcos, CA with 2 additional practice locations. Dr. Guan is fluent in English and Spanish, and is currently seeing new patients. Dr. Guan’s practice accepts Medicaid, Medicare and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Guan’s office at (760) 598-0400.
What languages does Dr. Guan speak?
Dr. Guan and their clinical team can communicate with patients in the following languages:
English
Spanish
What conditions does a Glaucoma Specialist like Dr. Guan typically treat?
As a Glaucoma Specialist, Dr. Guan 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. Guan. 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:
- Dry Eyes
- Tears
- Dry eye syndrome
- Keratoconjunctivitis sicca
- Ocular dryness
ICD-10 Codes:
- H04123: Dry eye syndrome of bilateral lacrimal glands
Also known as:
- Cataract
- Cloudy lens
- Lens clouding
- Eye cloudiness
ICD-10 Codes:
- H2513: Age-related nuclear cataract, bilateral
- H2511: Age-related nuclear cataract, right eye
Also known as:
- Borderline Open-Angle Glaucoma
- Glaucoma
- Early Open-Angle Glaucoma
- Open-angle glaucoma suspect
- Risk of Open-Angle Glaucoma
ICD-10 Codes:
- H40013: Open angle with borderline findings, low risk, bilateral
Also known as:
- Dry Eye Syndrome
- Tears
- Dry Eyes
- Keratoconjunctivitis Sicca
- Ocular Dryness
- Chronic Dry Eye
ICD-10 Codes:
- H04121: Dry eye syndrome of right lacrimal gland
- H04122: Dry eye syndrome of left lacrimal gland
What procedures does a Glaucoma Specialist like Dr. Guan typically perform?
As a Glaucoma Specialist, Dr. Guan 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. Guan. 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:
- 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:
- Eye Injection
- Intravitreal Injection
- Retinal Injection
- Macular Degeneration Injection
- Eye Medication Injection
CPT Codes:
- 67028: Intravitreal injection of a pharmacologic agent (separate procedure)
Also known as:
- Pterygium Removal with Graft
- Laser Trabeculoplasty
- Pterygium Excision with Autograft
- Conjunctival Graft for Pterygium
- Surfer's Eye Surgery with Graft
- Glaucoma laser surgery
- Laser eye treatment for glaucoma
- Trabeculoplasty
CPT Codes:
- 65426: Excision or transposition of pterygium; with graft
- 65855: Trabeculoplasty by laser surgery
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:
- Goniotomy (Glaucoma Surgery)
- Goniotomy Procedure
- Angle-Opening Glaucoma Surgery
- Congenital Glaucoma Surgery
CPT Codes:
- 65820: Goniotomy
Also known as:
- Laser Treatment for Retinopathy
- Photocoagulation for Retinopathy
- Diabetic Retinopathy Laser Treatment
- Retinal Laser Therapy
CPT Codes:
- 67228: Treatment of extensive or progressive retinopathy (eg, diabetic retinopathy), photocoagulation
Does Dr. Guan accept my insurance?
Dr. Guan accepts most major insurance plans. Important: Please call our office at (760) 598-0400 before your appointment to verify that your specific plan and network are accepted.
What insurance plans does Dr. Guan accept in San Marcos, CA?
Dr. Guan in San Marcos, CA accepts plans from many carriers. While this list is updated regularly, it is not a guarantee of coverage.
Top Insurances
Alignment Healthcare
All Other Territories
All Other Third Party
Blue Shield of California
Centene Corporation
Heritage Health
Medicare
Molina Healthcare
Other Health Care Provider
Unknown
View All Insurances
Where is Dr. Guan's office located?
Dr. Howard Guan's Primary Practice
340 Rancheros Dr # 164/166
San Marcos, CA 92069
(760) 598-0400
What is Dr. Guan's NPI number?An National Provider Identifier (NPI) is a unique ID number that identifies doctors and healthcare providers nationwide.
Dr. Guan's National Provider Identifier (NPI) number is 1134427636.
What common questions do patients ask about Dr. Guan?
Here are answers to patients Frequently Asked Questions (FAQ’s) about Dr. Guan
What is Dr. Howard Guan's specialty?
Dr. Guan is a Glaucoma Specialist near San Marcos, CA.
What does a Glaucoma Specialist do?
An ophthalmologist specializing in the treatment of glaucoma and related disorders focuses on managing conditions associated with increased intraocular pressure and optic nerve damage. This specialty encompasses both medical and surgical interventions to effectively treat these conditions.
Is this Dr. Howard Guan affiliated with a ranked Castle Connolly Top Hospital?
Yes, Dr. Guan is affiliated with Tri-City Medical Center which is a Castle Connolly Top Hospital. Castle Connolly Top Hospitals are healthcare institutions recognized for their excellence in specific medical procedures and overall patient care. They are identified through a rigorous peer nomination process, evaluating factors like patient outcomes, quality of care, and expertise. The list recognizes hospitals that excel in 20 or more specific medical procedures, representing the top 25% nationwide. Castle Connolly Top Hospitals
When to see a Glaucoma Specialist?: Guides for symptoms, conditions, and treatments
Understand your symptoms and know when it’s time to see a Glaucoma Specialist. Explore insights from trusted medical experts on EverydayHealth.com, where you'll find the most relevant content and helpful condition guides for up-to date information about symptoms, causes, diagnosis, treatment and more. See all our health guides to find trusted information on medical conditions from our experts at Everyday Health.
Is Howard Guan accepting new patients in San Marcos, CA?
Yes, Dr. Howard Guan is accepting new patients at this time.
Does Dr. Howard Guan offer online booking?
Please contact Dr. Guan's office at (760) 598-0400 for information about online booking, telehealth, or to schedule an appointment.
How can I make an appointment with Howard Guan?
Please contact Dr. Guan's office at (760) 598-0400 for information regarding telehealth appointment availability or for scheduling assistance.
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