Doctor profile · Federal record
Dr. Armin Marefat, D.O.
Internal Medicine Physician (CMS: Gastroenterology) · Wilmington, DE
- NPI 1629291000
- Accepts Medicare
- 21 yrs in practice
- Male
- Solo practice
- No sanctions
Practice & contact
- Primary practice
-
501 W 14Th St
Wilmington, DE 198011013
(302) 428-4411 - Mailing address
-
243 E Green Valley Cir
Newark, DE 197118709
Credentials & registration
- NPI registered
- April 2007 — 19 yrs on file
- Profile last updated
- July 8, 2007
- Year of graduation
- 2005 — 21 yrs since
- Specialty taxonomy
- 207R00000X — NUCC code
- State license (1)
- Delaware #C7-0003221
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1629291000. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
777
Distinct HCPCS
10
Medicare allowed
$93,995
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
45380 |
Biopsy of large bowel using a flexible endoscope | 129 | 129 | $103 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 117 | 83 | $94 | |
43239 |
Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | 105 | 105 | $90 | |
45385 |
Removal of polyps or growths of large bowel using an endoscope with mechanical snare | 96 | 96 | $262 | |
99231 |
Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes | 73 | 47 | $52 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 56 | 47 | $135 | |
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 50 | 32 | $82 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 44 | 44 | $175 | |
99203 |
New patient office or other outpatient visit, 30-44 minutes | 37 | 37 | $119 | |
99222 |
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 26 | 26 | $136 |
In context: peer comparison
Among 26 peers in Wilmington Internal Medicine Physician, average services per provider: 119. This provider delivers 6.5× the peer median.Open Payments
Industry payments received
All-time total
$385
Transactions
19
Manufacturers
10
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Celgene Corporation | 5 | $86.95 | |
| Genzyme Corporation | 2 | $54.81 | |
| Janssen Biotech, INC. | 2 | $53.23 | |
| Csl Behring | 2 | $48.87 | |
| Abbvie INC. | 3 | $48.57 | |
| Qol Medical, LLC | 1 | $23.76 | |
| Sandoz INC. | 1 | $18.63 | |
| Ipsen Biopharmaceuticals, INC | 1 | $18.49 | |
| Fresenius Kabi USA, LLC | 1 | $16.85 | |
| Phathom Pharmaceuticals, INC. | 1 | $14.90 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
524
Patients
266
Total drug cost
$43,520
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Pantoprazole Sodium | Generic | 222 | 100 | $5,324 |
| Omeprazole | Generic | 93 | 48 | $2,053 |
| Famotidine | Generic | 87 | 41 | $1,374 |
| Sod Sulf-Potass Sulf-Mag Sulf (Sodium, Potassium,Mag Sulfates) | Brand | 52 | 52 | $4,163 |
| Esomeprazole Magnesium | Generic | 31 | 14 | $2,322 |
| Linzess (Linaclotide) | Brand | 22 | 11 | $27,421 |
| Lansoprazole | Generic | 17 | 0 | $864 |
Hospital affiliations
Frequently asked questions
What is Dr. Armin Marefat's medical specialty?
Dr. Armin Marefat practices Internal Medicine Physician in Wilmington, DE.
Where does Dr. Armin Marefat practice?
Dr. Armin Marefat practices at 501 W 14Th St, Wilmington, DE 198011013. Office phone: 3024284411.
What is Dr. Armin Marefat's NPI?
Dr. Armin Marefat's National Provider Identifier (NPI) is 1629291000, issued by NPPES.
Does Dr. Armin Marefat accept Medicare assignment?
Yes. Dr. Armin Marefat accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Armin Marefat commonly perform?
Top Medicare-reported procedures in 2023: Biopsy of large bowel using a flexible endoscope (HCPCS 45380); Established patient office or other outpatient visit (HCPCS 99213); Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (HCPCS 43239). Source: CMS Medicare Physician & Other Practitioners file.