David A. Marks, M.D.
NPI 1821016023ActiveIndividual· Internal Medicine, Pulmonary Disease· San Antonio, TX
Internal Medicine, Pulmonary Disease (M.D.) with Rise Up Rehab, LLC and 1 other group, practicing in San Antonio, Texas. Their prescriptions cost Medicare Part D more than their services did: $2,100,756 for 4,456 claims, against $286,098 paid for services in 2024. Astrazeneca Pharmaceuticals LP was the largest of 23 companies reporting payments in 2025, $107,052 in all, mostly speaking and faculty fees. Lists Baptist Medical Center and 2 other hospitals as hospital affiliations.
Overview
| NPI | 1821016023 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jul 17, 2006 |
| Last updated in NPPES | May 14, 2026 |
| Certified by provider | May 14, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Pulmonary Disease Primary | 207RP1001X | L6513 | TX |
| Internal Medicine, Hospice and Palliative Medicine | 207RH0002X | L6513 | TX |
| Internal Medicine | 207R00000X | L6513 | TX |
| Internal Medicine, Sleep Medicine | 207RS0012X | L6513 | TX |
| Internal Medicine, Critical Care Medicine | 207RC0200X | L6513 | TX |
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 - Pulmonary Disease (TX) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 1,124 |
|---|---|
| Services billed | 4,699 across 72 procedure codes |
| Paid by Medicare | $286,098 |
Part D prescriptions in 2024
| Prescriptions (claims) | 4,456 · 6,316 30-day fills |
|---|---|
| Patients | 707 |
| Total drug cost | $2,100,756 |
| Generic share | 71% of claims |
Education and affiliations
| Graduation year | 2001 |
|---|---|
| Medicare specialty | Pulmonary Disease |
| Secondary specialties | Critical Care (Intensivists) |
| Telehealth | Offers telehealth |
Medical groups
- Rise Up Rehab, LLCConverse, TX · 109 clinicians
- David A Marks MD PASan Antonio, TX · 2 clinicians
Hospital affiliations
- Baptist Medical CenterSan Antonio, TX
- Methodist HospitalSan Antonio, TX
- Methodist Hospital Stone OakSan Antonio, TX
Other facilities
- Hope HospiceHospice · New Braunfels, TX
Industry payments (Open Payments)
- 2025$107,052 · 223 payments from 23 companies
- 2024$165,374 · 300 payments from 27 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Astrazeneca Pharmaceuticals LP | $103,934 | 122 |
| Inspire Medical Systems, Inc. | $1,630 | 39 |
| Glaxosmithkline, LLC. | $277.01 | 18 |
| Regeneron Healthcare Solutions, Inc. | $172.54 | 3 |
| Verona Pharma, Inc. | $124.98 | 1 |
What the 2025 payments were for
- Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program$88,600 · 38 payments
- Travel and Lodging$13,290 · 27 payments
- Food and Beverage$5,163 · 158 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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