Who is Dr. Warren, Ophthalmologist in Greenfield, MA?
Where did Dr. Warren go to medical school and complete their residency?
Residency: Univ Ca Sf Sch Of Med, Ophthalmology; Santa Clara Valley Med Ctr, Internal Medicine
Medical School: Stanford Univ Sch Of Med- Stanford Ca | Stanford University School of Medicine
Is Dr. Warren board certified as an Ophthalmologist?
Yes, Dr. John Warren, MD is board certified by the American Board of Ophthalmology
What languages does Dr. Warren speak?
Dr. Warren and their clinical team can communicate with patients in the following languages:
- English
- French
- Russian
- Spanish
What conditions does an Ophthalmologist like Dr. Warren typically treat?
As an Ophthalmologist, Dr. Warren 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. Warren. 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
- Cortical Age-Related Cataract
- Other Secondary Cataract
- Posterior Subcapsular Polar Age-Related Cataract
- Cloudy lens
- Lens clouding
- Eye cloudiness
- Cortical Cataract
- Outer Lens Clouding
- Cataract from another condition
- Complicated cataract
- Acquired cataract
- Back Lens Capsule Cataract
- Posterior Polar Cataract
ICD-10 Codes:
- H2512: Age-related nuclear cataract, left eye
- H2511: Age-related nuclear cataract, right eye
- H2513: Age-related nuclear cataract, bilateral
- H25012: Cortical age-related cataract, left eye
- H25011: Cortical age-related cataract, right eye
- H26493: Other secondary cataract, bilateral
- H25042: Posterior subcapsular polar age-related cataract, left eye
What procedures does an Ophthalmologist like Dr. Warren typically perform?
As an Ophthalmologist, Dr. Warren 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. Warren. 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:
- Cataract Surgery with Glaucoma Drainage Device
- Laser Surgery for Secondary Cataract
- Pterygium Removal with Graft
- Combined Cataract and Glaucoma Surgery
- Phacoemulsification with Aqueous Drainage Device
- IOL Insertion with Glaucoma Stent
- YAG Laser Capsulotomy
- Posterior Capsulotomy
- Secondary Cataract Removal
- Laser Eye Surgery
- Pterygium Excision with Autograft
- Conjunctival Graft for Pterygium
- Surfer's Eye Surgery with Graft
CPT Codes:
- 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
- 66821: Discission of secondary membranous cataract (opacified posterior lens capsule and/or anterior hyaloid); laser surgery (eg, YAG laser) (1 or more stages)
- 65426: Excision or transposition of pterygium; with graft
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:
- Endothelial Corneal Transplant
- Keratoplasty
- Endothelial keratoplasty
- Corneal graft
CPT Codes:
- 65756: Keratoplasty (corneal transplant); endothelial
Does Dr. Warren accept my insurance?
Dr. Warren accepts most major insurance plans. Important: Please call our office at (413) 774-7016 before your appointment to verify that your specific plan and network are accepted.
What insurance plans does Dr. Warren accept in Greenfield, MA?
Dr. Warren in Greenfield, MA accepts plans from many carriers. While this list is updated regularly, it is not a guarantee of coverage.
Top Insurances
Baystate Health
Blue Cross Blue Shield of Michigan
BMC Health System
Cigna Group
CVS Health (formerly Aetna)
Fallon Health
Medicare
Network Health
Point32Health
UnitedHealth Group
View All Insurances
Where is Dr. Warren's office located?
What is Dr. Warren's NPI number?A National Provider Identifier (NPI) is a unique ID number that identifies doctors and healthcare providers nationwide.
Dr. Warren's National Provider Identifier (NPI) number is 1386634400.
What common questions do patients ask about Dr. Warren?
Here are answers to patients Frequently Asked Questions (FAQ’s) about Dr. Warren