Charles Julian Billings Sr., MD
NPI 1326075318ActiveIndividual· Internal Medicine, Gastroenterology· Huntsville, AL
Internal Medicine, Gastroenterology (MD) in Huntsville, Alabama, trained at University of Alabama School of Medicine (class of 2000). Their prescriptions cost Medicare Part D more than their services did: $863,425 for 1,714 claims, against $97,715 paid for services in 2024. Abbvie Inc. was the largest of 17 companies reporting payments in 2025, $2,933 in all, mostly food and beverage.
Overview
| NPI | 1326075318 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jun 27, 2006 |
| Last updated in NPPES | Apr 10, 2018 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | MD.24248 | AL |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Nov 10, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 11, 2026 | No match | — |
| New York OMIG · Nov 11, 2026 | No match | — |
| Ohio Medicaid · Nov 11, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 11, 2026 | No match | — |
| Washington HCA · Nov 11, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Gastroenterology (AL) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 412 |
|---|---|
| Services billed | 1,949 across 40 procedure codes |
| Paid by Medicare | $97,715 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,714 · 3,080 30-day fills |
|---|---|
| Patients | 556 |
| Total drug cost | $863,425 |
| Generic share | 76% of claims |
Education and affiliations
| Medical school | University of Alabama School of Medicine |
|---|---|
| Graduation year | 2000 |
| Medicare specialty | Gastroenterology |
| Secondary specialties | Internal Medicine |
Medical group
- The Center for Colon and Digestive Disease P CHuntsville, AL · 16 clinicians
Hospital affiliations
- Athens Limestone HospitalAthens, AL
- Crestwood Medical CenterHuntsville, AL
- Decatur Morgan Hospital - Decatur CampusDecatur, AL
- Highlands Medical CenterScottsboro, AL
- Huntsville HospitalHuntsville, AL
Industry payments (Open Payments)
- 2025$2,933 · 150 payments from 17 companies
- 2024$2,360 · 132 payments from 14 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $1,087 | 56 |
| Madrigal Pharmaceuticals | $526.47 | 23 |
| Phathom Pharmaceuticals, Inc. | $244.82 | 17 |
| Salix Pharmaceuticals, A Division of Bausch Health US, LLC | $197.82 | 15 |
| Qol Medical, LLC | $151.49 | 5 |
What the 2025 payments were for
- Food and Beverage$2,933 · 150 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 32 gastroenterologists in Huntsville · All gastroenterologists in Alabama