John Cason, M.D.
NPI 1255494001 · Ophthalmology Physician · Phoenix, AZ
Enrolled with Medicare as Practitioner - Ophthalmology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Cason, M.D. is a Ophthalmology Physician provider in Phoenix, AZ (NPI 1255494001).
Provider details
- NPI number
- 1255494001
- Entity type
- Individual
- Primary specialty
- Ophthalmology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- C54100 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
19 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
2,278 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Measurement of Corneal Curvature and Depth of Eye92136 | 376 | $38 |
| Removal of Cataract With Insertion of Prosthetic Lens66984 | 369 | $496 |
| Imaging of Retina92134 | 306 | $37 |
| New Patient Complete Exam of Visual System92004 | 202 | $144 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 195 | $123 |
| Established Patient Complete Exam of Visual System92014 | 177 | $120 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 13 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Prednisolone Acetate | 175 | 123 |
| Moxifloxacin Hclbrand: Moxifloxacin | 122 | 90 |
| Neomycin/Polymyxin B/Dexamethabrand: Neomycin-Polymyxin-Dexameth | 88 | 71 |
| Latanoprost | 87 | 30 |
| Erythromycin Basebrand: Erythromycin | 46 | 28 |
| Doxycycline Hyclate | 36 | 15 |
| Timolol Maleate | 33 | 15 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$4,736 across 34 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-12-19
- Last updated
- 2023-09-15
- Certified
- 2023-09-15
Frequently asked questions
- What is John Cason's NPI number?
- John Cason's National Provider Identifier (NPI) is 1255494001, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Cason's specialty?
- John Cason is listed in the NPPES registry with a primary specialty of Ophthalmology Physician (Allopathic & Osteopathic Physicians).
- Where is John Cason located?
- John Cason's practice location on file with NPPES is 18325 N Allied Way Ste 100, Phoenix, AZ 85054-3106.
- What is John Cason's phone number?
- The practice phone number listed in the NPPES registry for John Cason is (602) 467-4966.
- Does John Cason accept Medicare?
- John Cason is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Cason's NPI active?
- Yes — John Cason's NPI (1255494001) is active in the NPPES registry as of the last update on 2023-09-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.