New York / Northern Westchester Hospital

CMS certification 330162 · Mount Kisco, NY · 3 entries in CMS's price-transparency list

Northern Westchester Hospital: charges and Medicare payments

Northern Westchester Hospital reported 1,658 Medicare inpatient stays across 57 DRGs in 2024. Across them it charged 4.46 times what it was paid — among the higher ratios in New York, number 40 of 123 hospitals with at least 100 stays (state median 2.74×, national 4.15×). Its most frequent stay was DRG 871, Septicemia or Severe Sepsis without MV >96 Hours with MCC: 254 stays at an average charge of $65,381, 28% below the national average. It also billed 3,441 outpatient services, charging 7.56 times what Medicare paid.

1Medicare inpatient stays 1,658
2Charge ÷ paid, inpatient 4.46×
3Rank in NY (highest ratio = 1) 40 of 123
4CMS price-transparency actions 3

Average charge per stay at Northern Westchester Hospital, its 10 most frequent DRGs, bars to scale. Source: CMS DY2024.

Inpatient stays

For the 57 DRGs that can be compared with the national average, Northern Westchester Hospital charged more than the national average in 6 (11%). Payments follow Medicare's rates, so they usually vary far less than charges.

DRG	Stays	Avg charge	vs US	Avg paid
871 Septicemia or Severe Sepsis without MV >96 Hours with MCC	254	$65,381	-28%	$16,198
291 Heart Failure and Shock with MCC	118	$51,357	-9%	$10,798
872 Septicemia or Severe Sepsis without MV >96 Hours without MCC	81	$43,445	-11%	$9,188
698 Other Kidney and Urinary Tract Diagnoses with MCC	51	$60,725	-17%	$14,562
193 Simple Pneumonia and Pleurisy with MCC	50	$46,668	-22%	$10,304
280 Acute Myocardial Infarction, Discharged Alive with MCC	50	$69,874	-8%	$13,974
287 Circulatory Disorders except AMI, with Cardiac...	47	$57,279	-10%	$9,636
177 Respiratory Infections and Inflammations with MCC	44	$53,434	-24%	$14,809
683 Renal Failure with CC	42	$33,704	-17%	$7,687
189 Pulmonary Edema and Respiratory Failure	39	$48,857	-15%	$11,032
690 Kidney and Urinary Tract Infections without MCC	39	$39,613	+5%	$6,769
689 Kidney and Urinary Tract Infections with MCC	34	$44,089	-14%	$10,615
853 Infectious and Parasitic Diseases with O.R. Procedures with...	34	$130,553	-43%	$37,592
322 Percutaneous Cardiovascular Procedures with Intraluminal...	33	$136,590	+19%	$17,440
378 Gastrointestinal Hemorrhage with CC	28	$42,918	-12%	$9,491
286 Circulatory Disorders except AMI, with Cardiac...	26	$92,582	-18%	$17,897
481 Hip and Femur Procedures except Major Joint with CC	26	$76,039	-25%	$16,461
640 Miscellaneous Disorders of Nutrition, Metabolism, Fluids and...	26	$55,613	-8%	$11,405
392 Esophagitis, Gastroenteritis and Miscellaneous Digestive...	25	$29,422	-27%	$7,808
330 Major Small and Large Bowel Procedures with CC	24	$95,281	-20%	$25,014
603 Cellulitis without MCC	24	$37,917	+2%	$8,225
682 Renal Failure with MCC	24	$43,409	-34%	$12,771
064 Intracranial Hemorrhage or Cerebral Infarction with MCC	23	$73,096	-27%	$18,091
329 Major Small and Large Bowel Procedures with MCC	22	$166,556	-23%	$40,592
552 Medical Back Problems without MCC	21	$42,585	-13%	$8,371
190 Chronic Obstructive Pulmonary Disease with MCC	20	$52,268	+3%	$9,210
281 Acute Myocardial Infarction, Discharged Alive with CC	19	$52,788	+5%	$7,596
480 Hip and Femur Procedures except Major Joint with MCC	19	$111,254	-20%	$22,970
309 Cardiac Arrhythmia and Conduction Disorders with CC	18	$32,853	-9%	$8,239
331 Major Small and Large Bowel Procedures without CC/MCC	18	$76,324	-11%	$13,707
194 Simple Pneumonia and Pleurisy with CC	17	$35,136	-8%	$8,253
308 Cardiac Arrhythmia and Conduction Disorders with MCC	17	$47,882	-15%	$12,884
321 Percutaneous Cardiovascular Procedures with Intraluminal...	17	$139,518	-15%	$24,657
377 Gastrointestinal Hemorrhage with MCC	17	$80,196	-6%	$15,015
065 Intracranial Hemorrhage or Cerebral Infarction with CC or...	16	$45,635	-18%	$8,780
391 Esophagitis, Gastroenteritis and Miscellaneous Digestive...	16	$55,582	-9%	$10,878
393 Other Digestive System Diagnoses with MCC	16	$58,320	-24%	$13,630
522 Hip Replacement with Principal Diagnosis of Hip Fracture...	16	$82,360	-20%	$18,027
699 Other Kidney and Urinary Tract Diagnoses with CC	16	$37,618	-21%	$10,118
057 Degenerative Nervous System Disorders without MCC	15	$55,121	-3%	$11,394
467 Revision of Hip or Knee Replacement with CC	15	$125,561	-20%	$26,526
536 Fractures of Hip and Pelvis without MCC	15	$25,385	-33%	$6,461
811 Red Blood Cell Disorders with MCC	15	$58,434	-14%	$12,505
388 Gastrointestinal Obstruction with MCC	14	$52,685	-23%	$11,662
389 Gastrointestinal Obstruction with CC	14	$36,537	-6%	$6,811
025 Craniotomy and Endovascular Intracranial Procedures with MCC	13	$162,284	-30%	$37,218
164 Major Chest Procedures with CC	13	$85,926	-33%	$20,619
243 Permanent Cardiac Pacemaker Implant with CC	13	$89,325	-20%	$18,505
312 Syncope and Collapse	12	$35,836	-21%	$7,567
374 Digestive Malignancy with MCC	12	$75,078	-25%	$16,110
390 Gastrointestinal Obstruction without CC/MCC	12	$23,236	-17%	$5,641
460 Spinal Fusion except Cervical without MCC	12	$101,313	-41%	$45,636
660 Kidney and Ureter Procedures for Non-Neoplasm with CC	12	$42,136	-38%	$10,806
310 Cardiac Arrhythmia and Conduction Disorders without CC/MCC	11	$33,463	+16%	$6,447
372 Major Gastrointestinal Disorders and Peritoneal Infections...	11	$33,996	-28%	$7,941
641 Miscellaneous Disorders of Nutrition, Metabolism, Fluids and...	11	$34,606	-7%	$6,294
644 Endocrine Disorders with CC	11	$42,186	-12%	$8,731

Outpatient services

Service (APC)	Services	Avg charge	Medicare allowed
Comprehensive Observation Services	948	$25,354	$2,880
Level 1 Endovascular Procedures	270	$35,346	$3,468
Level 5 Musculoskeletal Procedures	261	$63,320	$13,969
Level 2 Excision/ Biopsy/ Incision and Drainage	187	$10,275	$1,738
Level 2 Upper GI Procedures	173	$14,511	$1,962
Level 1 Laparoscopy and Related Services	159	$36,728	$6,053
Level 4 Urology and Related Services	119	$14,367	$3,675
Level 3 Endovascular Procedures	107	$91,937	$11,566
Level 5 Urology and Related Services	104	$22,521	$5,230
Level 2 Intraocular Procedures	102	$14,381	$4,374
Level 4 Musculoskeletal Procedures	86	$31,268	$7,701
Level 3 Urology and Related Services	84	$12,053	$2,186
Level 1 Breast/Lymphatic Surgery and Related Procedures	60	$34,912	$4,073
Level 3 Pacemaker and Similar Procedures	58	$49,145	$11,012
Level 3 Vascular Procedures	57	$16,219	$3,363
Level 2 Laparoscopy and Related Services	54	$63,612	$10,582
Level 4 Gynecologic Procedures	53	$13,696	$3,386
Level 3 Excision/ Biopsy/ Incision and Drainage	42	$19,245	$2,939
Level 3 Musculoskeletal Procedures	42	$18,903	$3,432
Level 6 Musculoskeletal Procedures	42	$91,775	$19,573
Level 2 Pacemaker and Similar Procedures	39	$53,150	$8,756
Level 2 Breast/Lymphatic Surgery and Related Procedures	36	$63,324	$6,928
Level 2 Musculoskeletal Procedures	34	$8,956	$1,752
Level 1 Abdominal/Peritoneal/Biliary and Related Procedures	34	$21,780	$3,605
Level 2 Endovascular Procedures	31	$49,470	$6,170

Against the New York average

For Septicemia or Severe Sepsis without MV >96 Hours with MCC (DRG 871), Northern Westchester Hospital charged $65,381 on average, 44% less than the New York average of $116,930, and was paid $16,198 against a state average of $24,426. For Heart Failure and Shock with MCC (DRG 291), Northern Westchester Hospital charged $51,357 on average, 37% less than the New York average of $81,161, and was paid $10,798 against a state average of $16,034. For Septicemia or Severe Sepsis without MV >96 Hours without MCC (DRG 872), Northern Westchester Hospital charged $43,445 on average, 29% less than the New York average of $61,129, and was paid $9,188 against a state average of $12,692. For Other Kidney and Urinary Tract Diagnoses with MCC (DRG 698), Northern Westchester Hospital charged $60,725 on average, 38% less than the New York average of $97,403, and was paid $14,562 against a state average of $20,125. For Comprehensive Observation Services (outpatient APC 8011), its average charge of $25,354 was 5% below the state average of $26,675. For Level 1 Endovascular Procedures (outpatient APC 5191), its average charge of $35,346 was 39% above the state average of $25,359. For Level 5 Musculoskeletal Procedures (outpatient APC 5115), its average charge of $63,320 was 7% below the state average of $67,926. For Level 2 Excision/ Biopsy/ Incision and Drainage (outpatient APC 5072), its average charge of $10,275 was 20% below the state average of $12,815.

Price-transparency record

CMS's enforcement list records these actions for a hospital named Northern Westchester Hospital in Mount Kisco, NY, under the federal hospital price-transparency rule (45 CFR part 180), which requires hospitals to post their standard charges online:

Met Requirements — 2025-04-22 (CMS case 3980)
Warning Notice — 2025-08-06 (CMS case 6190)
Closure Notice — 2025-11-13 (CMS case 6190)

A warning notice or corrective-action request is not a finding of wrongdoing; "Met Requirements" and closure notices record that CMS's review ended. Matched to this hospital by exact name, city and state.

Charges are the hospital's list prices averaged over its 2024 Medicare cases; payments are what those cases actually brought in. Neither is what you will pay. For a planned procedure, ask the hospital for its price estimate or, if you are uninsured or self-paying, a good-faith estimate.

Sources: CMS Medicare Inpatient Hospitals — by Provider and Service / by Geography and Service, data year 2024; CMS Medicare Outpatient Hospitals — by Provider and Service / by Geography and Service, data year 2024; CMS Hospital Price Transparency Enforcement Activities and Outcomes, July 2026. Checked 2026-10-24. Methodology.