Doctor profile · Federal record
Dr. Greg Marco, MD
Critical Care Medicine (Internal Medicine) Physician (CMS: Critical Care (Intensivists)) · Pulmonary Disease Physician · Grand Rapids, MI
- NPI 1427098433
- Accepts Medicare
- MIPS 93.8 / 100 · 2023
- 30 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
100 Michigan St Ne, Suite 8861
Grand Rapids, MI 495032560
(616) 391-2802
fax (616) 391-0801
Credentials & registration
- NPI registered
- June 2006 — 20 yrs on file
- Profile last updated
- February 26, 2021
- Year of graduation
- 1996 — 30 yrs since
- Specialty taxonomy
- 207RC0200X — NUCC code
- State license (1)
- Michigan #4301080028
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1427098433. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
166
Distinct HCPCS
2
Medicare allowed
$31,803
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99291 |
Critical care, first 30-74 minutes | 135 | 44 | $211 | |
99292 |
Critical care, each additional 30 minutes | 31 | 14 | $106 |
In context: peer comparison
Among 22 peers in this city , average services per provider: 41. This provider delivers 4.0× the peer median.Open Payments
Industry payments received
All-time total
$251
Transactions
7
Manufacturers
2
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| ABIOMED | 6 | $207.90 | |
| Ethicon Inc. | 1 | $43.45 |
By nature of payment
Hospital affiliations
Frequently asked questions
What is Dr. Greg Marco's medical specialty?
Dr. Greg Marco practices Critical Care Medicine (Internal Medicine) Physician in Grand Rapids, MI.
Where does Dr. Greg Marco practice?
Dr. Greg Marco practices at 100 Michigan St Ne, Grand Rapids, MI 495032560. Office phone: 6163912802.
What is Dr. Greg Marco's NPI?
Dr. Greg Marco's National Provider Identifier (NPI) is 1427098433, issued by NPPES.
Does Dr. Greg Marco accept Medicare assignment?
Yes. Dr. Greg Marco accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Greg Marco commonly perform?
Top Medicare-reported procedures in 2023: Critical care (HCPCS 99291); Critical care (HCPCS 99292). Source: CMS Medicare Physician & Other Practitioners file.