Doctor profile · Federal record

Dr. Tadeusz Korszun, MD

Emergency Medicine Physician (CMS: Emergency Medicine) · Diagnostic Ultrasound Physician · Manhasset, NY

  • NPI 1457373896
  • Accepts Medicare
  • MIPS 29.1 / 100 · 2023
  • 27 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
300 Community Dr
Manhasset, NY 110303816
(516) 562-4125

Credentials & registration

NPPES · NUCC
NPI registered
July 2006 — 20 yrs on file
Profile last updated
July 29, 2008
Year of graduation
1999 — 27 yrs since
Specialty taxonomy
207P00000X — NUCC code
State license (1)
New York #230629

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1457373896. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
865
Distinct HCPCS
10
Medicare allowed
$128,365
HCPCS Description Services Patients Avg allowed
99285 Emergency department visit with high level of medical decision making 266 262 $208
99284 Emergency department visit with moderate level of medical decision making 154 151 $142
99221 Initial hospital care with straightforward or low level of medical decision making, per day, if using time, at least 40 minutes 74 74 $98
99283 Emergency department visit with low level of medical decision making 70 68 $85
99213 Established patient office or other outpatient visit, 20-29 minutes 63 63 $106
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 59 59 $150
99235 Initial hospital care with same-day admission and discharge with moderate level of medical decision making, per day, if using time, at least 70 minutes 47 47 $182
87426 Detection test by immunoassay technique for severe acute respiratory syndrome coronavirus 31 31 $35
87804 Detection test by immunoassay with direct visual observation for influenza virus 30 15 $16
99291 Critical care, first 30-74 minutes 26 26 $250

In context: peer comparison

Among 35 peers in this city , average services per provider: 100. This provider delivers 8.7× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$281
Transactions
8
Manufacturers
4
Payer (manufacturer) Industry Txns Amount
Amgen Inc. 2 $145.87
ABBVIE INC. 3 $63.04
AstraZeneca Pharmaceuticals LP 2 $59.09
Cumberland Pharmaceuticals, Inc. 1 $13.13

By nature of payment

Food and Beverage
$281

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
120
Patients
115
Total drug cost
$1,155
Drug Type Claims Patients Total cost
Prednisone Generic 27 27 $46
Methylprednisolone Generic 22 21 $172
Fluticasone Propionate Generic 18 14 $183
Cephalexin Generic 15 15 $114
Doxycycline Hyclate Generic 14 14 $201
Albuterol Sulfate Hfa (Albuterol Sulfate) Brand 13 13 $345
Amoxicillin-Clavulanate Potass (Amoxicillin/Potassium Clav) Brand 11 11 $94

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Tadeusz Korszun's medical specialty?
Dr. Tadeusz Korszun practices Emergency Medicine Physician in Manhasset, NY.
Where does Dr. Tadeusz Korszun practice?
Dr. Tadeusz Korszun practices at 300 Community Dr, Manhasset, NY 110303816. Office phone: 5165624125.
What is Dr. Tadeusz Korszun's NPI?
Dr. Tadeusz Korszun's National Provider Identifier (NPI) is 1457373896, issued by NPPES.
Does Dr. Tadeusz Korszun accept Medicare assignment?
Yes. Dr. Tadeusz Korszun accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Tadeusz Korszun commonly perform?
Top Medicare-reported procedures in 2023: Emergency department visit with high level of medical decision making (HCPCS 99285); Emergency department visit with moderate level of medical decision making (HCPCS 99284); Initial hospital care with straightforward or low level of medical decision making (HCPCS 99221). Source: CMS Medicare Physician & Other Practitioners file.