MR. WILLIAM ROBEY III DEMARSE (PA-C) – Physician Assistant, NPI 1881655272
Physician Assistant
Main info
Profile Insights
NPPES metrics only — not quality of care.
Provider Addresses for MR. WILLIAM ROBEY III DEMARSE (PA-C)
40100 Highway 27
Davenport, FL 338375900
Phone: (863) 422-4971
Fax: (863) 419-2264
Type: Location
17430 Bali Blvd
Winter Garden, FL 347879507
Phone: (863) 422-5582
Fax: (863) 422-5597
Type: Location
Holiday Inn Express Tampa N I-75 - University Area, 13294, Telecom Drive, Tampa, Hillsborough County, Florida, 33637, United States
TAMPA, FL 336370913
Phone: (813) 972-4199
Fax: (813) 972-5753
Type: Mailing
East Fletcher Avenue, Tampa, Hillsborough County, Florida, 33592-2123, United States
TAMPA, FL 336134613
Phone: (813) 971-6000
Fax: (813) 972-5753
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 1 Open Payments records for all available years, with a total value of $14.
Total Amount is formed as General ($14) + Research ($0) + Ownership ($0) = $14.
Last reported payment date: 2023-08-10 • Largest payer in this snapshot: Boston Scientific Corporation ($14).
Total Amount
$14
General + Research + Ownership
Payments
1
Total payment records
General Amount
$14
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2023-08-10
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Boston Scientific Corporation | $14 |
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: 2008-12-23
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 |
|---|---|---|---|---|
| I20081223000055 | I | Physician Assistant | FL | 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 |
|---|---|---|---|---|
| 99284 | Emergency department visit with moderate level of medical decision making | 83 | 78 | $0 |
| 99285 | Emergency department visit with high level of medical decision making | 51 | 50 | $0 |
| 93010 | Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only | 29 | 27 | $0 |
| 99283 | Emergency department visit with low level of medical decision making | 15 | 13 | $0 |
| 99291 | Critical care, first 30-74 minutes | 11 | 11 | $0 |
Insurance plans in this area (ZIP 33837)
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