Isabelle F. Jeffress, M.D.
NPI 1558306282ActiveIndividual· Internal Medicine· Pearland, TX
Internal Medicine (M.D.) with Memorial Hermann Medical Group, practicing in Pearland, Texas. Their prescriptions cost Medicare Part D more than their services did: $188,126 for 2,386 claims, against $29,354 paid for services in 2024. Novo Nordisk Inc was the largest of 14 companies reporting payments in 2025, $1,029 in all, mostly food and beverage. Lists Memorial Hermann Hospital System as a hospital affiliation.
Overview
| NPI | 1558306282 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jun 17, 2006 |
| Last updated in NPPES | Jul 17, 2025 |
| Certified by provider | Jul 17, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | K0320 | TX |
| Pediatrics | 208000000X | K0320 | 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 - Internal Medicine (TX) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 108 |
|---|---|
| Services billed | 403 across 26 procedure codes |
| Paid by Medicare | $29,354 |
Part D prescriptions in 2024
| Prescriptions (claims) | 2,386 · 6,318 30-day fills |
|---|---|
| Patients | 197 |
| Total drug cost | $188,126 |
| Generic share | 87% of claims |
Education and affiliations
| Graduation year | 1995 |
|---|---|
| Medicare specialty | Internal Medicine |
| Secondary specialties | Pediatric Medicine |
| Telehealth | Offers telehealth |
Medical group
- Memorial Hermann Medical GroupSugar Land, TX · 762 clinicians
Hospital affiliation
- Memorial Hermann Hospital SystemHouston, TX
Other facilities
- Accentcare Home Health of TexasHome health agency · Galveston, TX
Industry payments (Open Payments)
- 2025$1,029 · 47 payments from 14 companies
- 2024$818.72 · 41 payments from 9 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Novo Nordisk Inc | $385.09 | 16 |
| Abbott Laboratories | $113.05 | 5 |
| Lilly USA, LLC | $88.44 | 5 |
| Pfizer Inc. | $85.99 | 3 |
| Exact Sciences Corporation | $70.80 | 4 |
What the 2025 payments were for
- Food and Beverage$1,029 · 47 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 48 internal medicine physicians in Pearland · All internal medicine physicians in Texas