Darren Wayne Lackan, M.D.
NPI 1053347534ActiveIndividual· Internal Medicine, Endocrinology, Diabetes & Metabolism· Ft Worth, TX
Internal Medicine, Endocrinology, Diabetes & Metabolism (M.D.) in Ft Worth, Texas, trained at University of Texas Medical School at San Antonio (class of 1999). In 2024 Medicare paid $338,731 for 1,037 patients, and Part D covered 1,647 of their prescriptions, 37% of them generic. Abbott Laboratories was the largest of 34 companies reporting payments in 2025, $3,343 in all, mostly food and beverage.
Overview
| NPI | 1053347534 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jun 25, 2006 |
| Last updated in NPPES | Sep 23, 2025 |
| Certified by provider | Sep 23, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Endocrinology, Diabetes & Metabolism Primary | 207RE0101X | L6481 | TX |
| Internal Medicine | 207R00000X | L6481 | 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 | 1,037 |
|---|---|
| Services billed | 5,113 across 21 procedure codes |
| Paid by Medicare | $338,731 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,647 · 3,293 30-day fills |
|---|---|
| Patients | 451 |
| Total drug cost | $481,505 |
| Generic share | 37% of claims |
Education and affiliations
| Medical school | University of Texas Medical School at San Antonio |
|---|---|
| Graduation year | 1999 |
| Medicare specialty | Endocrinology |
| Secondary specialties | Internal Medicine |
| Telehealth | Offers telehealth |
Hospital affiliations
- Baylor Scott and White All Saints Medical CenterFort Worth, TX
- Lake Granbury Medical CenterGranbury, TX
- Medical City WeatherfordWeatherford, TX
- Texas Health Harris Methodist Fort WorthFort Worth, TX
- Texas Health Harris Methodist Hospital StephenvillStephenville, TX
Industry payments (Open Payments)
- 2025$3,343 · 149 payments from 34 companies
- 2024$2,616 · 134 payments from 32 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbott Laboratories | $365.88 | 16 |
| Amgen Inc. | $334.87 | 13 |
| Neurocrine Biosciences, Inc. | $255.34 | 9 |
| Novo Nordisk Inc | $238.90 | 14 |
| Corcept Therapeutics | $212.70 | 8 |
What the 2025 payments were for
- Food and Beverage$3,319 · 148 payments
- Education$24.04 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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