DR. WILLIAM M DEMARCHI (MD) – Internal Medicine Physician, NPI 1659353100
Internal Medicine Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
12,378 INTERNAL MEDICINE in FL
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Provider Addresses for DR. WILLIAM M DEMARCHI (MD)
Clint Moore Road, Boca Raton, Palm Beach County, Florida, 33487, United States
SUITE 202
BOCA RATON, FL 334961037
Phone: (561) 451-2454
Fax: (561) 451-1223
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 13 Open Payments records for all available years, with a total value of $282.
Total Amount is formed as General ($282) + Research ($0) + Ownership ($0) = $282.
Last reported payment date: 2024-06-15 • Largest payer in this snapshot: Boston Scientific Corporation ($56).
Total Amount
$282
General + Research + Ownership
Payments
13
Total payment records
General Amount
$282
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-06-15
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Boston Scientific Corporation | $56 |
| Exact Sciences Corporation | $33 |
| Lilly USA, LLC | $33 |
| Sumitomo Pharma America, Inc. | $27 |
| Amgen Inc. | $20 |
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: 2022-08-22
PECOS data refreshed: 2026-06-15
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 |
|---|---|---|---|---|
| I20220822002980 | I | Internal Medicine | NC | 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 |
|---|---|---|---|---|
| 99310 | Subsequent nursing facility care with high level of medical decision making, per day, if using time, at least 45 minutes | 1,031 | 678 | $0 |
| 99306 | Initial nursing facility care with high level of medical decision making, per day, if using time, at least 45 minutes | 572 | 525 | $0 |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 283 | 128 | $0 |
| 99497 | Advance care planning, first 30 minutes | 207 | 206 | $0 |
| G0439 | Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit | 86 | 86 | $0 |
Insurance plans in this area (ZIP 33496)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Nurse Practitioner | NC | |
| Internal Medicine | NC | |
| Nurse Practitioner | NC | |
| Nurse Practitioner | NC | |
| Nurse Practitioner | NC | |
| Internal Medicine | NC | |
| Nurse Practitioner | NC | |
| Nurse Practitioner | NC | |
| Nurse Practitioner | NC | |
| Nurse Practitioner | NC |
Reviews
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