Doctor profile · Federal record

Dr. Mario Zambito, MD

Surgical Critical Care Physician (CMS: Critical Care (Intensivists)) · Grand Rapids, MI

  • NPI 1083078844
  • Accepts Medicare
  • MIPS 93.8 / 100 · 2023
  • 10 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
221 Michigan St Ne Ste 400
Grand Rapids, MI 495032538
(616) 486-9600
Mailing address
100 Michigan St Ne # Mc845
Grand Rapids, MI 495032560

Credentials & registration

NPPES · NUCC
NPI registered
April 2016 — 10 yrs on file
Profile last updated
August 26, 2022
Year of graduation
2016 — 10 yrs since
Specialty taxonomy
2086S0102X — NUCC code
State license (1)
Michigan #4301506997

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1083078844. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
229
Distinct HCPCS
7
Medicare allowed
$28,582
HCPCS Description Services Patients Avg allowed
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 64 48 $75
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 55 55 $168
99291 Critical care, first 30-74 minutes 39 18 $207
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 22 14 $115
99231 Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes 18 17 $44
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 16 16 $126
99238 Hospital discharge day management, 30 minutes or less 15 15 $78

In context: peer comparison

Among 10 peers in Grand Rapids Surgical Critical Care Physician, average services per provider: 36. This provider delivers 6.4× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$6,110
Transactions
39
Manufacturers
5
Payer (manufacturer) Industry Txns Amount
Intuitive Surgical, INC. 32 $5,518.95
W. L. Gore & Associates, INC. 2 $219.85
Abbvie INC. 1 $138.40
Davol INC. 2 $131.71
Medtronic, INC. 2 $101.50

By nature of payment

Travel and Lodging
$2,599
Food and Beverage
$2,487
Education
$1,000
Gift
$24

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Mario Zambito's medical specialty?
Dr. Mario Zambito practices Surgical Critical Care Physician in Grand Rapids, MI.
Where does Dr. Mario Zambito practice?
Dr. Mario Zambito practices at 221 Michigan St Ne Ste 400, Grand Rapids, MI 495032538. Office phone: 6164869600.
What is Dr. Mario Zambito's NPI?
Dr. Mario Zambito's National Provider Identifier (NPI) is 1083078844, issued by NPPES.
Does Dr. Mario Zambito accept Medicare assignment?
Yes. Dr. Mario Zambito accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Mario Zambito commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232); Initial hospital care with moderate level of medical decision making (HCPCS 99223); Critical care (HCPCS 99291). Source: CMS Medicare Physician & Other Practitioners file.