RATNASABAPATHY SIVASEKARAN (MD) – Internal Medicine Physician, NPI 1114954476
Internal Medicine Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
12,368 INTERNAL MEDICINE in FL
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Provider Addresses for RATNASABAPATHY SIVASEKARAN (MD)
2845, Southeast 3rd Court, Ocala, Marion County, Florida, 34471, United States
OCALA, FL 34471
Phone: (352) 369-5300
Fax: (352) 369-5309
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 14 Open Payments records for all available years, with a total value of $287.
Total Amount is formed as General ($287) + Research ($0) + Ownership ($0) = $287.
Last reported payment date: 2024-07-23 • Largest payer in this snapshot: Exact Sciences Corporation ($49).
Total Amount
$287
General + Research + Ownership
Payments
14
Total payment records
General Amount
$287
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-07-23
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Exact Sciences Corporation | $49 |
| Lilly USA, LLC | $41 |
| Abbott Laboratories | $38 |
| AstraZeneca Pharmaceuticals LP | $31 |
| PFIZER INC. | $25 |
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: 2004-09-15
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 |
|---|---|---|---|---|
| I20040915000856 | I | Internal Medicine | 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 |
|---|---|---|---|---|
| 99233 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 4,563 | 1,179 | $0 |
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 1,415 | 267 | $0 |
| 99223 | Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 1,196 | 886 | $0 |
| 99232 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 1,071 | 292 | $0 |
| 82172 | Apolipoprotein level | 1,042 | 213 | $0 |
Insurance plans in this area (ZIP 34471)
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Provider's Procedures
Group practice members
| Name | Specialty | State |
|---|---|---|
| Orthopedic Surgery | FL | |
| Internal Medicine | FL | |
| Family Practice | FL | |
| Internal Medicine, Physical Medicine And Rehabilitation | FL | |
| Physician Assistant | VA | |
| Family Practice | FL | |
| Internal Medicine | FL | |
| Family Practice | FL | |
| Physician Assistant | FL | |
| N E U R O S U R G E R Y | FL |
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