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Edit this profileAt a glance
- 18325 N Allied Way Ste 100, Phoenix, AZ 85054
About Dr. Duncan
Joshua K. Duncan, DO practices ophthalmology in Phoenix, AZ. Joshua is a 2012 graduate of Arizona College of Osteopathic Medicine Mid Western University. According to Medicare claims data, Joshua cared for 2,825 Medicare patients across 3,680 services. The services billed most often include measurement of corneal curvature and depth of eye, removal of cataract with insertion of prosthetic lens, and imaging of retina. The provider's National Provider Identifier (NPI) is 1457612830.
Factual summary compiled by Guide.md from public records; not written by this provider.
Education & Training
Specialty
Credentials & Licensing
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (602) 467-4966
- Email not available
Is this your home address or personal number? Hide it
Practice Locations
18325 N ALLIED WAY STE 100
Phoenix, AZ 85054
Conditions Commonly Evaluated or Treated
Within Ophthalmology generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Conditions
Eye injury and cancer
Inflammation, neurologic, and orbit
Most searched conditions
Cornea and external eye
Eyelid and tear drainage
Refractive and focusing
- Astigmatism
- Eye misalignment (strabismus)
- Farsightedness
- Lazy eye (amblyopia)
- Nearsightedness
- Presbyopia
Retina and vitreous
Eye injuries
Retina & vitreous
Procedures & services
Cataract and lens
- Cataract surgery with lens implant
- Laser-assisted cataract surgery
- Intraocular lens exchange
- YAG laser capsulotomy
Cornea and refractive
Emergency and minor
- Corneal rust-ring removal
- Removal of an eye foreign body
- Repair of an eye or eyelid laceration
- Repair of ruptured globe
Examination and imaging
- Eye ultrasound
- Slit-lamp examination
- Visual-field testing
- Corneal topography
- Fluorescein angiography
Eyelid, tear duct, and muscle
- Chalazion removal
- Ectropion repair
- Eyelid surgery
- Tear-duct probing
- Drooping-eyelid repair
- Entropion repair
- Eye-muscle surgery
- Tear-duct bypass surgery
Glaucoma
- Cyclophotocoagulation
- Trabeculectomy
- Glaucoma drainage-device implantation
- Laser peripheral iridotomy
- Minimally invasive glaucoma surgery
- Selective laser trabeculoplasty
Retina
Most searched procedures
Corneal procedures
Eye diagnostics
Eye injuries
Eyelid surgery
Laser eye surgery
Laser procedures
Laser vision correction
Refractive surgery
Tear duct & Orbit
Procedures Most Often Billed to Medicare
3,680 services · 2,825 patients · 22 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Removal of cataract with insertion of prosthetic lens | Procedure | 66984 |
798 | More than most peers in Ophthalmology |
| Removal of recurring cataract in lens capsule using a laser | Procedure | 66821 |
240 | More than most peers in Ophthalmology |
| Closure of tear duct opening using plug | Procedure | 68761 |
39 | As often as other peers in Ophthalmology |
| Extracapsular removal of cataract with insertion of artificial lens and insertion of drainage device in front chamber of eye | Procedure | 66991 |
24 | As often as other peers in Ophthalmology |
| Removal of growth of cornea | Procedure | 65400 |
20 | More often than most peers in Ophthalmology |
| Transplantation of outer layer of corneal tissue | Procedure | 65756 |
18 | As often as other peers in Ophthalmology |
| Removal of growth of eyelid lining, 1.0 cm or less | Procedure | 68110 |
12 | Too few peers to compare |
| Ultrasound scan of cornea to determine thickness | Imaging | 76514 |
39 | More often than most peers in Ophthalmology |
| Measurement of corneal curvature and depth of eye | Treatment | 92136 |
849 | More than most peers in Ophthalmology |
| Imaging of retina | Treatment | 92134 |
375 | More often than most peers in Ophthalmology |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Other eye doctors at this location 7
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 8
Clinically related specialties at the same address — the people this provider most likely works alongside.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
More connections — 30 related providers in 4 groups
Other eye doctors in Phoenix 7
Same specialty, same city.
Trained at Arizona College of Osteopathic Medicine Mid Western University 8
Other providers in the same specialty who trained at the same institution.
Class of 2012 at Arizona College of Osteopathic Medicine Mid Western University 8
Providers who graduated from the same medical school in the same year.
Also performs Removal of cataract with insertion of prosthetic lens 7
Providers in AZ who bill this service to Medicare most often.
Common questions
What does Dr. Duncan specialize in?
Dr. Duncan is an eye doctor in Phoenix, AZ. That is the designation recorded for this NPI in the federal registry, where it is listed as “Ophthalmology”.
NPI registry
Where is Dr. Duncan located?
Dr. Duncan is listed at 18325 N Allied Way Ste 100, Phoenix, AZ 85054. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Dr. Duncan's phone number?
The number on file is (602) 467-4966. Contact the office directly to confirm availability and scheduling.
NPI registry
What is Dr. Duncan's NPI number?
Dr. Duncan's National Provider Identifier is 1457612830. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Where did Dr. Duncan go to medical school?
Dr. Duncan attended Arizona College of Osteopathic Medicine Mid Western University, graduating in 2012. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Duncan been practicing?
Dr. Duncan has 14 years experience. Calculated from a graduation year of 2012, reported in the CMS National Downloadable File.
CMS public data
What does Dr. Duncan do most often?
According to Medicare billing data, Dr. Duncan performs procedures including removal of cataract with insertion of prosthetic lens, removal of recurring cataract in lens capsule using a laser and closure of tear duct opening using plug; reads or performs imaging such as ultrasound scan of cornea to determine thickness; provides treatments such as measurement of corneal curvature and depth of eye and imaging of retina, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Dr. Duncan confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Duncan. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.