GEOFFREY TSARAS (MD) – Infectious Disease Physician, NPI 1023278769
Infectious Disease Physician
Main info
Doctor Profile
Contacts
Profile Insights
NPPES metrics only — not quality of care.
475 INFECTIOUS DISEASE in IL
Provider Addresses for GEOFFREY TSARAS (MD)
PO BOX 1567
ROCKFORD, IL 611100067
Phone:
Type: Mailing
PO BOX 78866
MILWAUKEE, WI 532788866
Phone: (779) 696-7150
Type: Mailing
1340 CHARLES ST STE 404
ROCKFORD, IL 611042200
Phone: (779) 696-1890
Fax: (779) 696-2410
Type: Location
1401, Charles Street, Rockford, Winnebago County, Illinois, 61104, United States
ROCKFORD, IL 611042203
Phone: (779) 696-1890
Fax: (779) 696-2410
Type: Location
129 Phelps Ave. #508
Rockford, IL 611082455
Phone: (815) 229-2300
Fax: (815) 229-3909
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 $27.
Total Amount is formed as General ($27) + Research ($0) + Ownership ($0) = $27.
Last reported payment date: 2024-03-26 • Largest payer in this snapshot: ViiV Healthcare Company ($27).
Total Amount
$27
General + Research + Ownership
Payments
1
Total payment records
General Amount
$27
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-03-26
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| ViiV Healthcare Company | $27 |
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: 2010-10-21
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 |
|---|---|---|---|---|
| I20101021001146 | I | Infectious Disease | IL | 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 |
|---|---|---|---|---|
| 99232 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 276 | 129 | $0 |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 185 | 122 | $0 |
| 99222 | Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 120 | 107 | $0 |
| 99231 | Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes | 52 | 31 | $0 |
| 99233 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 34 | 19 | $0 |
Insurance plans in this area (ZIP 61110)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| E N D O C R I N O L O G Y | IA | |
| Family Practice | WI | |
| Physical Therapist In Private Practice | IL | |
| - | IL | |
| Nurse Practitioner | IL | |
| Internal Medicine | WI | |
| N E U R O S U R G E R Y | IL | |
| - | WI | |
| Orthopedic Surgery | WI | |
| Physician Assistant | WI |
Reviews
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