Doctor profile · Federal record
Dr. Marin Marcu, M.D.
Gastroenterology Physician (CMS: Gastroenterology) · Saint Charles, MO
- NPI 1295795722
- Accepts Medicare
- 40 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
400 1St Capitol Dr, Suite 201
Saint Charles, MO 633012880
(636) 669-2332
fax (636) 669-2401 - Mailing address
-
Po Box 955534
Saint Louis, MO 631955534
Credentials & registration
- NPI registered
- March 2006 — 20 yrs on file
- Profile last updated
- November 20, 2020
- Year of graduation
- 1986 — 40 yrs since
- Specialty taxonomy
- 207RG0100X — NUCC code
- State license (1)
- Missouri #103437
- Medicaid
- MO #205337207
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1295795722. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
1,581
Distinct HCPCS
10
Medicare allowed
$177,726
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 425 | 150 | $77 | |
45384 |
Removal of polyps or growths of large bowel using a flexible endoscope with electrical cautery | 221 | 221 | $75 | |
45385 |
Removal of polyps or growths of large bowel using an endoscope with mechanical snare | 210 | 209 | $233 | |
43239 |
Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | 198 | 167 | $50 | |
99223 |
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 150 | 132 | $169 | |
43248 |
Insertion of guide wire with dilation of esophagus using a flexible endoscope | 97 | 80 | $123 | |
43251 |
Removal of polyps or growths of esophagus, stomach, and/or upper small bowel using an endoscope with mechanical snare | 47 | 45 | $154 | |
45380 |
Biopsy of large bowel using a flexible endoscope | 40 | 40 | $62 | |
44361 |
Biopsy of small bowel (except ileum) using an endoscope | 35 | 35 | $84 | |
G0105 |
Colorectal cancer screening; colonoscopy on individual at high risk | 34 | 34 | $161 |
In context: peer comparison
Among 2 peers in Saint Charles Gastroenterology Physician, average services per provider: 76. This provider delivers 21× the peer median.Open Payments
Industry payments received
All-time total
$15
Transactions
1
Manufacturers
1
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Fujifilm Healthcare Americas Corporation | 1 | $14.89 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
1,284
Patients
794
Total drug cost
$167,589
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Peg 3350-Electrolyte (Sodium Chloride/Nahco3/Kcl/Peg) | Brand | 393 | 387 | $7,701 |
| Pantoprazole Sodium | Generic | 351 | 153 | $4,975 |
| Omeprazole | Generic | 117 | 44 | $2,055 |
| Sucralfate | Generic | 85 | 42 | $3,946 |
| Sutab (Sod Sulf/Pot Chloride/Mag Sulf) | Brand | 59 | 58 | $10,217 |
| Loperamide (Loperamide Hcl) | Brand | 53 | 28 | $525 |
| Sod Sulf-Potass Sulf-Mag Sulf (Sodium, Potassium,Mag Sulfates) | Brand | 48 | 48 | $3,625 |
| Famotidine | Generic | 45 | 14 | $698 |
| Cholestyramine Light (Cholestyramine/Aspartame) | Brand | 26 | 20 | $1,890 |
| Mesalamine | Generic | 26 | 0 | $23,867 |
Frequently asked questions
What is Dr. Marin Marcu's medical specialty?
Dr. Marin Marcu practices Gastroenterology Physician in Saint Charles, MO.
Where does Dr. Marin Marcu practice?
Dr. Marin Marcu practices at 400 1St Capitol Dr, Saint Charles, MO 633012880. Office phone: 6366692332.
What is Dr. Marin Marcu's NPI?
Dr. Marin Marcu's National Provider Identifier (NPI) is 1295795722, issued by NPPES.
Does Dr. Marin Marcu accept Medicare assignment?
Yes. Dr. Marin Marcu accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Marin Marcu commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232); Removal of polyps or growths of large bowel using a flexible endoscope with electrical cautery (HCPCS 45384); Removal of polyps or growths of large bowel using an endoscope with mechanical snare (HCPCS 45385). Source: CMS Medicare Physician & Other Practitioners file.