ROCK H. JEAN-GUILLAUME (D.O.) – Emergency Medicine Physician, NPI 1730157918
Emergency Medicine Physician
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Doctor Profile
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Profile Insights
NPPES metrics only — not quality of care.
1,682 EMERGENCY MEDICINE in MA
Provider Addresses for ROCK H. JEAN-GUILLAUME (D.O.)
2040 Boston Rd Ste 5
Wilbraham, MA 010951380
Phone: (413) 599-3800
Fax: (413) 279-1900
Type: Location
55 Lake Ave N
Worcester, MA 016550002
Phone: (508) 421-1400
Fax: (508) 421-1490
Type: Location
5 SHREWSBURY ST STE D
HOLDEN, MA 015201960
Phone: (508) 829-3810
Fax: (508) 829-3815
Type: Mailing
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
No Open Payments data available for this provider.
This can happen when there are no reportable CMS Open Payments records.
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: 2020-07-29
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking 2 Medicare enrollment records; no due dates published yet.
Enrollment records
2
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 |
|---|---|---|---|---|
| I20040409000056 | I | Emergency Medicine | MA | TBD |
| I20200729000554 | I | Emergency Medicine | SC | 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 |
|---|---|---|---|---|
| 99285 | Emergency department visit with high level of medical decision making | 196 | 194 | $0 |
| 99284 | Emergency department visit with moderate level of medical decision making | 119 | 118 | $0 |
| 99283 | Emergency department visit with low level of medical decision making | 31 | 30 | $0 |
| 90662 | Influenza vaccine split virus, preservative free | 14 | 14 | $0 |
| 99211 | Office or other outpatient visit for the evaluation and management of established patient that may not require presence of healthcare professional | 13 | 12 | $0 |
Insurance plans in this area (ZIP 01095)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| - | NC | |
| - | NC | |
| - | SC | |
| - | GA | |
| - | GA | |
| Emergency Medicine | SC | |
| Emergency Medicine | GA | |
| Emergency Medicine | VA | |
| Emergency Medicine | OH | |
| - | SC |
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