Internal Medicine, Gastroenterology · Alabaster, AL
NPI
1972541910
Since 2006
Specialty
Internal Medicine, Gastroenterology
Code 207RG0100X
Group practices
1
Medicare group memberships
Hospitals
3
Hospital affiliations
1010 1st St N, Suite 112
Alabaster, AL, 35007
Phone (205) 663-1023
Groups this clinician bills Medicare through
Medicare paid, 2024
$63K
1,049 services
Medicare patients, 2024
276
Average age 73
Drug cost, 2024
$1.0M
3,787 prescriptions
Company payments, 2025
$1,620
From 12 companies
Procedures and visits billed to Original Medicare, 2024
In 2024, the most common Medicare service billed by Robert D Marks was code 43239 (upper gi endoscopy), 131 times for 114 patients. In total Robert D Marks billed 1,049 services in 32 codes, and Medicare paid $63K.
| Code |
|---|
Official US government data: the national provider registry and Medicare enrollment records, linked by NPI. Last update of this record: 2007-12-04.
| Setting |
|---|
| Services |
|---|
| Patients |
|---|
| Paid per service |
|---|
| Medicare paid |
|---|
| 43239 Upper GI Endoscopy | Facility | 131 | 114 | $55.78 | $7,307 |
| 99439 Chronic, Principal, and Transitional Care Management | Office | 110 | 29 | $34.67 | $3,813 |
| 99490 Chronic, Principal, and Transitional Care Management | Office | 109 | 30 | $45.19 | $4,925 |
| 45380 Lower GI Endoscopy - Other | Facility | 84 | 84 | $81.35 | $6,834 |
| 45385 Colonoscopy - Lesion Removal | Facility | 68 | 67 | $188.47 | $13K |
| 43249 Upper GI Endoscopy | Facility | 50 | 45 | $93.29 | $4,664 |
| 99214 Office E&M - Established | Office | 36 | 35 | $84.91 | $3,057 |
| 99222 Hospital E&M - Initial | Facility | 28 | 28 | $94.73 | $2,652 |
| 99232 Hospital E&M - Subsequent | Facility | 25 | 13 | $57.47 | $1,437 |
| 43235 Upper GI Endoscopy | Facility | 19 | 19 | $76.47 | $1,453 |
| 99231 Hospital E&M - Subsequent | Facility | 19 | 16 | $33.95 | $645 |
| G0105 Colorectal cancer screening; colonoscopy on individual at high risk | Facility | 14 | 14 | $146.62 | $2,053 |
| 45378 Lower GI Endoscopy - Other | Facility | 12 | 12 | $115.30 | $1,384 |
By year: 2022 $101K for 3,044 services; 2023 $61K for 1,212 services; 2024 $63K for 1,049 services.
Medicare prescription drug claims, 2024
In 2024, the drug Robert D Marks prescribed most often to Medicare patients was Pantoprazole Sodium, with 1,312 prescriptions and refills. In total Robert D Marks wrote 3,787 Medicare prescriptions that cost $1.0M.
| Drug | Claims | 30-day fills | Patients | Cost |
|---|---|---|---|---|
| Pantoprazole Sodium Generic | 1,312 | 2,776 | 391 | $16K |
| Dexlansoprazole Dr Dexlansoprazole | 470 | 771 | 119 | $117K |
| Linzess Linaclotide | 276 | 368 | 87 | $193K |
| Dicyclomine Hcl Generic | 243 | 344 | 74 | $5,966 |
| Famotidine Generic | 214 | 411 | 75 | $2,835 |
| Sod Sulf-Potass Sulf-Mag Sulf Sodium, Potassium,mag Sulfates | 171 | 171 | 166 | $10K |
| Esomeprazole Magnesium Generic | 125 | 252 | 32 | $7,566 |
| Methscopolamine Bromide Generic | 107 | 139 | 34 | $12K |
| Omeprazole Generic | 94 | 193 | 34 | $1,735 |
| Glycopyrrolate Generic | 78 | 113 | 22 | $2,587 |
| Peg 3350-Electrolyte Sodium Chloride/Nahco3/Kcl/Peg | 72 | 72 | 67 | $1,496 |
| Dexilant Dexlansoprazole | 42 | 58 | Under 11 | $18K |
| Colestipol Hcl Generic | 40 | 81 | 13 | $3,895 |
| Lubiprostone Generic | 37 | 51 | 11 | $4,549 |
| Metoclopramide Hcl Generic | 35 | 42 | Under 11 | $108 |
Brand drugs: - claims; generic drugs: 3,165 claims.
Money and other things of value reported by the companies
In 2025, drug and medical device companies paid Robert D Marks $1,620 ($1,620 in general payments such as food, travel and fees) from 12 companies. The largest payer was Abbvie Inc. with $411.
| Company | Payments | Amount |
|---|---|---|
| Abbvie Inc. ABBV | 30 | $411 |
| Salix Pharmaceuticals, a division of Bausch Health US, LLC BHC | 17 | $351 |
| Janssen Biotech, Inc. JNJ | 11 | $195 |
| Lilly USA, LLC LLY | 10 | $167 |
| Ardelyx, Inc. ARDX | 7 | $155 |
| Pfizer Inc. PFE | 6 | $104 |
| QOL Medical, LLC | 4 | $104 |
| Genzyme Corporation SNY | 2 | $44.68 |
| Celltrion USA Inc. 068270.KS | 2 | $33.74 |
| Phathom Pharmaceuticals, Inc. PHAT | 2 | $21.15 |
Official US government data on Original Medicare services, Medicare prescription drug plans and the payments drug and device companies must report. Services with fewer than 11 patients and drugs with fewer than 11 claims are not published. Procedure codes are shown by number with their public category.