Quick answers
- Does Gwen S. Korovin accept Medicare assignment?
- Medicare's clinician data says Gwen S. Korovin may accept Medicare assignment (as of October 2, 2026). Ask the office whether they accept it for your visit.
- How many Medicare patients does Gwen S. Korovin see?
- In 2024, CMS data shows 307 Original Medicare patients and 1,774 services for Gwen S. Korovin. This counts Original Medicare only and measures volume, not quality.
- What is Gwen S. Korovin's NPI number?
- 1053465344. 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 Gwen S. Korovin, 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 | 307 |
|---|---|
| Services billed to Medicare | 1,774 |
| Different services or procedures | 18 |
| Participating Medicare provider | Yes |
| Average age of these patients | 79 |
Most frequent services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)643 services
- Removal of impacted ear wax (69210)286 services
- Diagnostic exam of nasal passages using an endoscope (31231)160 services
- Injection of drug or substance under skin or into muscle (96372)154 services
- Diagnostic exam of voice box using a flexible endoscope (31575)120 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 cholesterol75%
- High blood pressure61%
- Arthritis57%
- Osteoporosis28%
- Ischemic heart disease27%
- Diabetes24%
Practice locations
Addresses where Gwen S. Korovin is enrolled with Medicare (CMS data updated October 2, 2026).
- 70 E 77th St, 1bNew York, NY 10075 (212) 879‑6651
Specialties
- Otolaryngologyprimary
Other ENT doctors in New York
Clinicians with the same Medicare primary specialty in New York, NY — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | State University Of New York At Stony Brook, School Of Medicine |
| Graduation year | 1984 (42 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | May accept for some services |
| NPI (National Provider Identifier) | 1053465344 |
| 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