Jacob Vadakekalam, MD
NPI 1316904139ActiveIndividual· Internal Medicine, Endocrinology, Diabetes & Metabolism· San Antonio, TX
Internal Medicine, Endocrinology, Diabetes & Metabolism (MD) with Diabetes and Glandular Disease Clinic PA, practicing in San Antonio, Texas. Their prescriptions cost Medicare Part D more than their services did: $2,856,333 for 6,751 claims, against $582,258 paid for services in 2024. Senseonics, Incorporated was the largest of 33 companies reporting payments in 2025, $7,093 in all, mostly food and beverage.
Overview
| NPI | 1316904139 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Apr 26, 2006 |
| Last updated in NPPES | Oct 29, 2026 |
| Certified by provider | Oct 29, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Endocrinology, Diabetes & Metabolism Primary | 207RE0101X | K9443 | TX |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Endocrinology (TX) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 988 |
|---|---|
| Services billed | 21,608 across 93 procedure codes |
| Paid by Medicare | $582,258 |
Part D prescriptions in 2024
| Prescriptions (claims) | 6,751 · 16,736 30-day fills |
|---|---|
| Patients | 1,138 |
| Total drug cost | $2,856,333 |
| Generic share | 53% of claims |
Education and affiliations
| Graduation year | 1981 |
|---|---|
| Medicare specialty | Endocrinology |
| Secondary specialties | Internal Medicine |
Medical group
- Diabetes and Glandular Disease Clinic PASan Antonio, TX · 9 clinicians
Industry payments (Open Payments)
- 2025$7,093 · 240 payments from 33 companies
- 2024$4,996 · 243 payments from 27 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Senseonics, Incorporated | $2,800 | 7 |
| Sequel Med Tech, LLC | $725.24 | 45 |
| Lilly USA, LLC | $287.82 | 10 |
| Amgen Inc. | $280.41 | 18 |
| Boehringer Ingelheim Pharmaceuticals, Inc. | $252.01 | 14 |
What the 2025 payments were for
- Food and Beverage$4,208 · 231 payments
- Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program$2,800 · 7 payments
- Education$85.00 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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