William Schiff, M.D.
NPI 1629098991 · Ophthalmology Physician · New York, NY
Enrolled with Medicare as Practitioner - Ophthalmology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
William Schiff, M.D. is a Ophthalmology Physician provider in New York, NY (NPI 1629098991).
Provider details
- NPI number
- 1629098991
- Entity type
- Individual
- Primary specialty
- Ophthalmology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 178965 (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
7,929 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 | 3,093 | $46 |
| Established Patient Problem Focused Exam of Visual System92012 | 1,352 | $101 |
| Established Patient Complete Exam of Visual System92014 | 1,087 | $142 |
| Injection of Drug Into Eye67028 | 1,079 | $136 |
| Extended Exam of the Back Part of the Eye With Retinal Drawing92201 | 963 | $28 |
| New Patient Complete Exam of Visual System92004 | 227 | $168 |
| 2d Ultrasound Scan of Eye Tissue and Structures |
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 | 97 | 62 |
| Dorzolamide Hcl/Timolol Maleatbrand: Dorzolamide-Timolol | 72 | 42 |
| Bromfenac Sodium | 28 | — |
| Difluprednate | 26 | 16 |
| Brimonidine Tartrate | 23 | 18 |
| Bromfenac Sodiumbrand: Prolensa | 23 | 11 |
| Latanoprost | 18 | — |
| Moxifloxacin Hcl |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-07-20
- Last updated
- 2007-07-08
Frequently asked questions
- What is William Schiff's NPI number?
- William Schiff's National Provider Identifier (NPI) is 1629098991, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Schiff's specialty?
- William Schiff is listed in the NPPES registry with a primary specialty of Ophthalmology Physician (Allopathic & Osteopathic Physicians).
- Where is William Schiff located?
- William Schiff's practice location on file with NPPES is 635 W 165th St, New York, NY 10032-3724.
- What is William Schiff's phone number?
- The practice phone number listed in the NPPES registry for William Schiff is (212) 305-9535.
- Does William Schiff accept Medicare?
- William Schiff is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is William Schiff's NPI active?
- Yes — William Schiff's NPI (1629098991) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.