Joshua K. Duncan, DO
Ophthalmology Physician · Phoenix, AZ
Joshua K. Duncan, DO is an ophthalmology physician with a practice address in Phoenix, Arizona, and NPI 1457612830, issued on Jun 1, 2012. Check the license (Arizona 07085, as entered in NPPES) on the Arizona Medical Board; the Medicare figures below come from public CMS files.
- Name
- Joshua K. Duncan
- Credential
- DO
- Primary taxonomy
- Ophthalmology Physician 207W00000X
- License numbers
- 07085 AZ
Q8049 TX
Self-reported in NPPES; status is on the state search - Practice location
- 18325 N Allied Way Ste 100, Phoenix, AZ 85054
- Phone
- (602) 467-4966
- Enumerated
- Jun 1, 2012
- Record last updated
- Sep 15, 2023
- Fax
- (480) 419-5401
- Medicare enrollment
- Enrolled (PECOS I20170228001919); accepts Medicare assignment
- Medical or professional school
- Arizona College Of Osteopathic Medicine Mid Western University, 2012
- Entity
- Type 1 · individual
Also registered at 18325 N Allied Way Ste 100
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Harmohina Bagga, M.D.Ophthalmology Physician1306024104
- John Cason, M.D.Ophthalmology Physician1255494001
- Eric Chen, MDOphthalmology Physician1184245359
- Anna Moore, O.D.Optometrist1013330745
- Brad Nuttall, ODOptometrist1699290478
- Jeffrey Smith, ODOptometrist1609869981
Verify Joshua K. Duncan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersArizona Medical Board
Search for license 07085Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
39% fewer Medicare Part D claims than the average ophthalmology physician in 2024
926 Medicare Part D claims for 310 beneficiaries, against an average of 1,518 among the 16,459 providers of this specialty who prescribed in Part D. Brand-name drugs were 55% of claims. 14 claims were for opioids.
Most prescribed
- Prednisolone Acetate365 claims
- Moxifloxacin183 claims
- Latanoprost79 claims
- Timolol Maleate43 claims
- Neomycin-Polymyxin-Dexameth30 claims
- Valacyclovir30 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $3,285.77
27 payments; by number, the most common kind was food and beverage; the largest payer was Glaukos Corporation. The 13,221 providers of this specialty with any payment received $4,535.02 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Millennium Vision IncPhoenix, AZ
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Ophthalmology Physician providers in Arizona
There are 353 ophthalmology physician records in Arizona.
Other ophthalmology physician records in Arizona
- Jack Aaron, MDTucson, AZ1043293566
- David Abbott, M.D.Phoenix, AZ1881891257
- Elahhe Afkhamnejad, M.D.Phoenix, AZ1659993897
- Shivi Agrawal, M.D.Phoenix, AZ1528379245
- Norman Ahl, MDTucson, AZ1144296278
- Joseph Aiello, MDScottsdale, AZ1801866553
- Patrick Aiello, MDYuma, AZ1235124744
- Todd Altenbernd, M.D.Tucson, AZ1841273356
- Aaron Amacher, M.D.Phoenix, AZ1700856283
- Jay Arora, M.D.Scottsdale, AZ1306259106
Common questions
What is Joshua K. Duncan, DO's NPI number?
Joshua K. Duncan, DO's National Provider Identifier (NPI) is 1457612830, issued on Jun 1, 2012. An NPI identifies a provider in billing; it is not a license.
Where is Joshua K. Duncan, DO located?
The NPPES record lists a practice address at 18325 N Allied Way Ste 100, Phoenix, AZ, 85054. Phone: (602) 467-4966. Providers update this record themselves, so call before visiting.
How can I verify Joshua K. Duncan, DO's license?
NPPES lists Arizona license number 07085, as entered by the provider. Search the Arizona Medical Board at https://www.azmd.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Joshua K. Duncan, DO prescribe under Medicare Part D?
In 2024, Joshua K. Duncan, DO had 926 Medicare Part D claims for 310 beneficiaries; the average among ophthalmology physician prescribers was 1,518. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.