William Dieck, MD
NPI 1316051360 · Ophthalmology Physician · Mount Kisco, NY
Enrolled with Medicare as Practitioner - Ophthalmology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
William Dieck, MD is a Ophthalmology Physician provider in Mount Kisco, NY (NPI 1316051360).
Provider details
- NPI number
- 1316051360
- Entity type
- Individual
- Primary specialty
- Ophthalmology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 160917 (NY)
Specialties & taxonomies
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
2,319 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) |
|---|---|---|
| Established Patient Complete Exam of Visual System92014 | 843 | $145 |
| Established Patient Problem Focused Exam of Visual System92012 | 444 | $103 |
| Imaging of Optic Nerve92133 | 390 | $41 |
| Exam of Visual Field With Extended Testing92083 | 163 | $74 |
| Imaging of Retina92134 | 147 | $46 |
| Exam of the Internal Drainage System of Eye92020 | 128 | $31 |
| New Patient Complete Exam of Visual System92004 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 24 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Latanoprost | 642 | 161 |
| Timolol Maleate | 174 | 32 |
| Neomycin/Polymyxin B/Dexamethabrand: Neomycin-Polymyxin-Dexameth | 160 | 124 |
| Bimatoprostbrand: Lumigan | 88 | 20 |
| Azithromycin | 66 | 52 |
| Brinzolamide/Brimonidine Tartbrand: Simbrinza | 66 | 21 |
| Prednisolone Acetate | 64 | 45 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-08-18
- Last updated
- 2016-11-08
Frequently asked questions
- What is William Dieck's NPI number?
- William Dieck's National Provider Identifier (NPI) is 1316051360, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Dieck's specialty?
- William Dieck is listed in the NPPES registry with a primary specialty of Ophthalmology Physician (Allopathic & Osteopathic Physicians).
- Where is William Dieck located?
- William Dieck's practice location on file with NPPES is 185 Kisco Ave Ste 500, Mount Kisco, NY 10549-1409.
- What is William Dieck's phone number?
- The practice phone number listed in the NPPES registry for William Dieck is (914) 666-4939.
- Does William Dieck accept Medicare?
- William Dieck is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is William Dieck's NPI active?
- Yes — William Dieck's NPI (1316051360) is active in the NPPES registry as of the last update on 2016-11-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.