DR. JON TRISTER (M.D.) – Internal Medicine Physician, NPI 1639131352
Internal Medicine Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
7,722 INTERNAL MEDICINE in MA
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Provider Addresses for DR. JON TRISTER (M.D.)
10, Winthrop Street, Union Hill, Worcester, Worcester County, Massachusetts, 01655, United States
WORCESTER, MA 016044435
Phone: (508) 754-9950
Fax: (508) 754-2592
Mailing address matches the actual address.
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 51 Open Payments records for all available years, with a total value of $1,091.
Total Amount is formed as General ($1,091) + Research ($0) + Ownership ($0) = $1,091.
Last reported payment date: 2024-12-18 • Largest payer in this snapshot: Phathom Pharmaceuticals, Inc. ($177).
Total Amount
$1,091
General + Research + Ownership
Payments
51
Total payment records
General Amount
$1,091
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-12-18
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Phathom Pharmaceuticals, Inc. | $177 |
| AIMMUNE THERAPEUTICS, INC. | $174 |
| Lilly USA, LLC | $149 |
| ABBVIE INC. | $142 |
| Amgen Inc. | $71 |
Medicare Enrollment & Revalidation
Source: CMS public data · Not endorsed by CMS ·
Educational use only—not medical, billing, or legal advice.
PECOS enrollment status
Participating (accepts Medicare assignment)
Enrollment effective: 2005-03-28
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking this Medicare enrollment for revalidation, but has not published a due date.
Enrollment records
1
Earliest due date
Not assigned (TBD)
CMS data updated
2026-06-01
Revalidation progress
- Medicare enrolled
- On CMS revalidation list
- Due date assigned
- Revalidate in PECOS
CMS enrollment records
| Enrollment ID | Type | Specialty | State | Due date |
|---|---|---|---|---|
| I20050328000791 | I | Internal Medicine | MA | TBD |
What to do next
- No action required while the due date shows TBD.
- Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
- Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.
Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS
Medicare Utilization (FFS)
Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·
Educational use only—not medical, billing, or legal advice.
Top Medicare procedures (2023) · refreshed 2026-05-27
| HCPCS | Description | Services | Beneficiaries | Medicare allowed |
|---|---|---|---|---|
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 582 | 229 | $0 |
| J3301 | Injection, triamcinolone acetonide, not otherwise specified, 10 mg | 468 | 44 | $0 |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 368 | 188 | $0 |
| 93000 | Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report | 70 | 59 | $0 |
| 20610 | Aspiration and/or injection of fluid from large joint | 46 | 33 | $0 |
Insurance plans in this area (ZIP 01604)
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Provider's Procedures
Group practice members
| Name | Specialty | State |
|---|---|---|
| - | MA | |
| Nurse Practitioner | MA |
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