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Accepting patients
Who is Dr. Johnston, Ophthalmologist in Knoxville, TN?
Dr. Andrew Johnston, MD is an Ophthalmologist, who primarily practices in Knoxville, TN with 1 additional practice location. Dr. Johnston is fluent in English, and is currently seeing new patients. Dr. Johnston’s practice accepts Medicare and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Johnston’s office at (865) 584-0905.
What languages does Dr. Johnston speak?
Dr. Johnston and their clinical team can communicate with patients in the following languages:
English
What conditions does an Ophthalmologist like Dr. Johnston typically treat?
As an Ophthalmologist, Dr. Johnston 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. Johnston. 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
- Combined Age-Related Cataract
- Cloudy lens
- Lens clouding
- Eye cloudiness
- Mixed Type Cataract
- Multiple Cataract Types
ICD-10 Codes:
- H25812: Combined forms of age-related cataract, left eye
- H25811: Combined forms of age-related cataract, right eye
- H25813: Combined forms of age-related cataract, bilateral
- H2513: Age-related nuclear cataract, bilateral
Also known as:
- Type 2 Diabetes
- Diabetes Type 2
- Type 2 diabetes
- Diabetes Mellitus Type 2
- Adult-Onset Diabetes
- Non-Insulin Dependent Diabetes
ICD-10 Codes:
- E119: Type 2 diabetes mellitus without complications
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 Eyes
- Tears
- Dry eye syndrome
- Keratoconjunctivitis sicca
- Ocular dryness
ICD-10 Codes:
- H04123: Dry eye syndrome of bilateral lacrimal glands
What procedures does an Ophthalmologist like Dr. Johnston typically perform?
As an Ophthalmologist, Dr. Johnston 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. Johnston. 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:
- Laser Surgery for Secondary Cataract
- Laser Trabeculoplasty
- YAG Laser Capsulotomy
- Posterior Capsulotomy
- Secondary Cataract Removal
- Laser Eye Surgery
- Glaucoma laser surgery
- Laser eye treatment for glaucoma
- Trabeculoplasty
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
Also known as:
- Upper Eyelid Lift (Blepharoplasty)
- Eyelid Lesion Removal
- Plastic and Cosmetic Surgery
- Droopy Eyelid Surgery
- Upper Eyelid Reduction
- Cosmetic Eyelid Surgery
- Eyelid growth removal
- Eyelid bump excision
- Eyelid skin lesion surgery
CPT Codes:
- 15823: Blepharoplasty, upper eyelid; with excessive skin weighting down lid
- 67840: Excision of lesion of eyelid (except chalazion) without closure or with simple direct closure
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
Does Dr. Johnston accept my insurance?
Dr. Johnston accepts most major insurance plans. Important: Please call our office at (865) 584-0905 before your appointment to verify that your specific plan and network are accepted.
What insurance plans does Dr. Johnston accept in Knoxville, TN?
Dr. Johnston in Knoxville, TN accepts plans from many carriers. While this list is updated regularly, it is not a guarantee of coverage.
Top Insurances
Blue Cross Blue Shield of Michigan
Blue Cross Blue Shield of Tennessee
Cigna Group
CVS Health (formerly Aetna)
Humana
Medicare
Spectrum
UnitedHealth Group
Unknown
View All Insurances
Where is Dr. Johnston's office located?
Dr. Andrew Johnston's Primary Practice
1124 E Weisgarber Rd Ste 100
Knoxville, TN 37909
(865) 584-0905
What is Dr. Johnston's NPI number?An National Provider Identifier (NPI) is a unique ID number that identifies doctors and healthcare providers nationwide.
Dr. Johnston's National Provider Identifier (NPI) number is 1912404922.
What common questions do patients ask about Dr. Johnston?
Here are answers to patients Frequently Asked Questions (FAQ’s) about Dr. Johnston
What is Dr. Andrew Johnston's specialty?
Dr. Johnston is a Ophthalmologist near Knoxville, TN.
What does an Ophthalmologist do?
An ophthalmologist possesses the knowledge and professional skills required to deliver comprehensive eye and vision care. These medical doctors are trained to diagnose, monitor, and treat all ocular and visual disorders, whether through medical or surgical interventions. Their expertise encompasses a wide range of issues affecting the eye and its structures, including the eyelids, orbit, and visual pathways. Additionally, ophthalmologists prescribe vision services, such as glasses and contact lenses, to help patients achieve optimal visual health.
Is this Dr. Andrew Johnston affiliated with a ranked Castle Connolly Top Hospital?
No, Johnston is not affiliated with a Castle Connolly Top Hospital. Castle Connolly Top Hospitals 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 an Ophthalmologist?: Guides for symptoms, conditions, and treatments
Understand your symptoms and know when it’s time to see an Ophthalmologist. 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 Andrew Johnston accepting new patients in Knoxville, TN?
Yes, Dr. Andrew Johnston is accepting new patients at this time.
Does Dr. Andrew Johnston offer online booking?
Please contact Dr. Johnston's office at (865) 584-0905 for information about online booking, telehealth, or to schedule an appointment.
How can I make an appointment with Andrew Johnston?
Please contact Dr. Johnston's office at (865) 584-0905 for information regarding telehealth appointment availability or for scheduling assistance.
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