John Christoforidis, M.D.
NPI 1801833447 · Ophthalmology Physician · Tucson, AZ
Enrolled with Medicare as Practitioner - Ophthalmology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Christoforidis, M.D. is a Ophthalmology Physician provider in Tucson, AZ (NPI 1801833447).
Provider details
- NPI number
- 1801833447
- Entity type
- Individual
- Primary specialty
- Ophthalmology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 35.077405 (OH)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 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
8,319 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) |
|---|---|---|
| Imaging of Retina92134 | 2,956 | $41 |
| Established Patient Problem Focused Exam of Visual System92012 | 1,805 | $91 |
| Injection of Drug Into Eye67028 | 1,513 | $129 |
| Established Patient Complete Exam of Visual System92014 | 822 | $127 |
| Extended Exam of the Back Part of the Eye With Optic Nerve Drawing92202 | 767 | $16 |
| New Patient Complete Exam of Visual System92004 | 309 | $152 |
| Extended Exam of the Back Part of the Eye With Retinal Drawing |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 8 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Neomycin/Polymyxin B/Dexamethabrand: Neomycin-Polymyxin-Dexameth | 73 | 39 |
| Prednisolone Acetate | 70 | 38 |
| Ketorolac Tromethamine | 44 | 19 |
| Atropine Sulfate | 25 | 16 |
| Timolol Maleate | 19 | — |
| Latanoprost | 18 | — |
| Brimonidine Tartrate | 13 | — |
| Nepafenacbrand: Ilevro |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$2,575 across 41 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
- 2006-06-01
- Last updated
- 2026-03-10
- Certified
- 2026-03-10
Frequently asked questions
- What is John Christoforidis's NPI number?
- John Christoforidis's National Provider Identifier (NPI) is 1801833447, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Christoforidis's specialty?
- John Christoforidis is listed in the NPPES registry with a primary specialty of Ophthalmology Physician (Allopathic & Osteopathic Physicians).
- Where is John Christoforidis located?
- John Christoforidis's practice location on file with NPPES is 3172 N Swan Rd, Tucson, AZ 85712-1227.
- What is John Christoforidis's phone number?
- The practice phone number listed in the NPPES registry for John Christoforidis is (520) 881-1400.
- Does John Christoforidis accept Medicare?
- John Christoforidis is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Christoforidis's NPI active?
- Yes — John Christoforidis's NPI (1801833447) is active in the NPPES registry as of the last update on 2026-03-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.