Patrick Differding, MD
NPI 1356871016 · Ophthalmology Physician · Aurora, IL
Enrolled with Medicare as Practitioner - Ophthalmology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Patrick Differding, MD is a Ophthalmology Physician provider in Aurora, IL (NPI 1356871016).
Provider details
- NPI number
- 1356871016
- Entity type
- Individual
- Primary specialty
- Ophthalmology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
9 yrs in NPPES registry
- Profile completeness25% of score
83% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
1,598 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) |
|---|---|---|
| Complex Removal of Cataract With Insertion of Prosthetic Lens66982 | 382 | $108 |
| Removal of Cataract With Insertion of Prosthetic Lens66984 | 297 | $55 |
| Established Patient Problem Focused Exam of Visual System92012 | 220 | $90 |
| New Patient Complete Exam of Visual System92004 | 150 | $146 |
| Measurement of Corneal Curvature and Depth of Eye92136 | 93 | $42 |
| Established Patient Complete Exam of Visual System92014 | 83 | $127 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 9 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Prednisolone Acetate | 179 | 122 |
| Ketorolac Tromethamine | 164 | 114 |
| Latanoprost | 159 | 63 |
| Ofloxacin | 152 | 112 |
| Brimonidine Tartrate | 41 | 17 |
| Timolol Maleate | 34 | 20 |
| Dorzolamide Hcl/Timolol Maleatbrand: Dorzolamide-Timolol | 16 | — |
| Brimonidine Tartrate/Timolol |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$232 across 13 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
- 2017-06-15
- Last updated
- 2024-02-20
- Certified
- 2024-02-20
Frequently asked questions
- What is Patrick Differding's NPI number?
- Patrick Differding's National Provider Identifier (NPI) is 1356871016, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Patrick Differding's specialty?
- Patrick Differding is listed in the NPPES registry with a primary specialty of Ophthalmology Physician (Allopathic & Osteopathic Physicians).
- Where is Patrick Differding located?
- Patrick Differding's practice location on file with NPPES is 1300 N Highland Ave Ste 1, Aurora, IL 60506-1481.
- What is Patrick Differding's phone number?
- The practice phone number listed in the NPPES registry for Patrick Differding is (630) 897-5104.
- Does Patrick Differding accept Medicare?
- Patrick Differding is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Patrick Differding's NPI active?
- Yes — Patrick Differding's NPI (1356871016) is active in the NPPES registry as of the last update on 2024-02-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.