TZVETAN VASSILEV (MD) – Infectious Disease Physician, NPI 1619980893
Infectious Disease Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
302 INFECTIOUS DISEASE in GA
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Provider Addresses for TZVETAN VASSILEV (MD)
Riverside Parkway, Lawrenceville, Gwinnett County, Georgia, 30043:30096, United States
SUITE 101
LAWRENCEVILLE, GA 300435945
Phone: (770) 495-0466
Fax: (770) 995-0472
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 113 Open Payments records for all available years, with a total value of $2,498.
Total Amount is formed as General ($2,498) + Research ($0) + Ownership ($0) = $2,498.
Last reported payment date: 2024-12-16 • Largest payer in this snapshot: ViiV Healthcare Company ($572).
Total Amount
$2,498
General + Research + Ownership
Payments
113
Total payment records
General Amount
$2,498
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-12-16
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| ViiV Healthcare Company | $572 |
| Gilead Sciences, Inc. | $398 |
| Merck Sharp & Dohme LLC | $364 |
| Paratek Pharmaceuticals, Inc. | $298 |
| Insmed, Inc. | $157 |
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: 2004-09-08
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 |
|---|---|---|---|---|
| I20040908000220 | I | Infectious Disease | GA | 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 | 1,013 | 369 | $0 |
| 99233 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 235 | 123 | $0 |
| 99223 | Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 229 | 216 | $0 |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 212 | 119 | $0 |
| 99222 | Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 91 | 88 | $0 |
Insurance plans in this area (ZIP 30043)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Internal Medicine, Infectious Disease | GA | |
| Infectious Disease | TN | |
| - | GA | |
| Infectious Disease, Internal Medicine | GA | |
| Nurse Practitioner | GA | |
| Nurse Practitioner | GA | |
| Infectious Disease, Internal Medicine | GA |
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