Quick answers
- Does William H. Sher accept Medicare assignment?
- Yes. Medicare's clinician data says William H. Sher accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- How many Medicare patients does William H. Sher see?
- In 2024, CMS data shows 1,070 Original Medicare patients and 2,290 services for William H. Sher. This counts Original Medicare only and measures volume, not quality.
- What is William H. Sher's NPI number?
- 1770564296. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Medicare activity in 2024
Official CMS public-use data for William H. Sher, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.
| Original Medicare patients | 1,070 |
|---|---|
| Services billed to Medicare | 2,290 |
| Different services or procedures | 18 |
| Participating Medicare provider | Yes |
| Average age of these patients | 76 |
Most frequent services
- Removal of impacted ear wax (69210)934 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)626 services
- New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)332 services
- Removal of impacted cerumen (one or both ears) by physician on same date of service as audiologic function testing (G0268)205 services
- Diagnostic exam of voice box using a flexible endoscope (31575)75 services
Chronic conditions among these patients
Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).
- High blood pressure75%
- High cholesterol75%
- Arthritis54%
- Ischemic heart disease38%
- Diabetes28%
- Anxiety28%
Practice locations
Addresses where William H. Sher is enrolled with Medicare (CMS data updated October 2, 2026).
- 1086 N Broadway, Suite 220Yonkers, NY 10701 (914) 963‑8588
- 1500 Route 112, Bldg 4Port Jefferson Station, NY 11776 (631) 928‑0188
Group practices
Medicare enrollment lists William H. Sher as a member of this group (CMS data updated October 2, 2026).
- Ent and Allergy Associates LLP432 clinicians in the group
Specialties
- Otolaryngologyprimary
Other ENT doctors in Yonkers
Clinicians with the same Medicare primary specialty in Yonkers, NY — not a recommendation.
Other clinicians in Ent and Allergy Associates LLP
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Hahneman Medical College Of The Pacific |
| Graduation year | 1980 (46 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1770564296 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians