Jon Trister, M.D.
NPI 1639131352ActiveIndividual· Internal Medicine· Worcester, MA
Internal Medicine (M.D.) with Vernon Integrative Medical Group LLC, practicing in Worcester, Massachusetts. Their prescriptions cost Medicare Part D more than their services did: $1,328,487 for 13,929 claims, against $88,481 paid for services in 2024. Abbvie Inc. was the largest of 16 companies reporting payments in 2025, $2,161 in all, mostly food and beverage. Lists St Vincent Hospital and 3 other hospitals as hospital affiliations.
Overview
| NPI | 1639131352 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Apr 6, 2006 |
| Last updated in NPPES | Jul 13, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 80587 | MA |
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 (MA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 272 |
|---|---|
| Services billed | 2,017 across 55 procedure codes |
| Paid by Medicare | $88,481 |
Part D prescriptions in 2024
| Prescriptions (claims) | 13,929 · 29,205 30-day fills |
|---|---|
| Patients | 844 |
| Total drug cost | $1,328,487 |
| Generic share | 86% of claims |
Education and affiliations
| Graduation year | 1975 |
|---|---|
| Medicare specialty | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- Vernon Integrative Medical Group LLCWorcester, MA · 2 clinicians
Hospital affiliations
- St Vincent HospitalWorcester, MA
- Umass Memorial Health - Harrington HospitalSouthbridge, MA
- Umass Memorial Healthalliance HospitalsLeominster, MA
- Umass Memorial Medical Center/University CampusWorcester, MA
Other facilities
- Elara CaringHome health agency · Braintree, MA
- Pathways HealthcareHome health agency · Westwood, MA
- Vna Care NetworkHome health agency · Worcester, MA
Industry payments (Open Payments)
- 2025$2,161 · 101 payments from 16 companies
- 2024$1,045 · 49 payments from 14 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $384.51 | 14 |
| Phathom Pharmaceuticals, Inc. | $326.89 | 14 |
| Aimmune Therapeutics, Inc. | $200.19 | 10 |
| Astrazeneca Pharmaceuticals LP | $188.18 | 9 |
| Pfizer Inc. | $175.43 | 8 |
What the 2025 payments were for
- Food and Beverage$2,161 · 101 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 471 internal medicine physicians in Worcester · All internal medicine physicians in Massachusetts