Gregory Fenton, M.D.
NPI 1114136959 · Ophthalmology Physician · Wheaton, IL
Enrolled with Medicare as Practitioner - Ophthalmology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Gregory Fenton, M.D. is a Ophthalmology Physician provider in Wheaton, IL (NPI 1114136959).
Provider details
- NPI number
- 1114136959
- Entity type
- Individual
- Primary specialty
- Ophthalmology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- MT185909 (PA)
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 tenure28% of score
19 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
8,340 Medicare services, 2024 (ranked within specialty)
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 methodology.
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 | 3,519 | $42 |
| Injection of Drug Into Eye67028 | 1,880 | $126 |
| Established Patient Complete Exam of Visual System92014 | 1,486 | $130 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 812 | $95 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 162 | $17 |
| Photography of the Retina92250 | 111 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 12 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Prednisolone Acetate | 394 | 155 |
| Ketorolac Tromethamine | 180 | 60 |
| Moxifloxacin Hclbrand: Moxifloxacin | 93 | 81 |
| Dorzolamide Hcl/Timolol Maleatbrand: Dorzolamide-Timolol | 85 | 34 |
| Bromfenac Sodium | 21 | — |
| Latanoprost | 21 | — |
| Bromfenac Sodiumbrand: Prolensa | 21 | — |
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-05-21
- Last updated
- 2022-10-05
- Certified
- 2022-10-05
Frequently asked questions
- What is Gregory Fenton's NPI number?
- Gregory Fenton's National Provider Identifier (NPI) is 1114136959, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gregory Fenton's specialty?
- Gregory Fenton is listed in the NPPES registry with a primary specialty of Ophthalmology Physician (Allopathic & Osteopathic Physicians).
- Where is Gregory Fenton located?
- Gregory Fenton's practice location on file with NPPES is 2015 N Main St, Wheaton, IL 60187-3190.
- What is Gregory Fenton's phone number?
- The practice phone number listed in the NPPES registry for Gregory Fenton is (630) 668-8250.
- Does Gregory Fenton accept Medicare?
- Gregory Fenton is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Gregory Fenton's NPI active?
- Yes — Gregory Fenton's NPI (1114136959) is active in the NPPES registry as of the last update on 2022-10-05.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.