DR. THOMAS JULIAN GIANARIS (M.D.) – Neurological Surgery Physician, NPI 1629417829
Neurological Surgery Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
588 NEUROSURGERY in TX
Provider Addresses for DR. THOMAS JULIAN GIANARIS (M.D.)
6020 W PARKER RD STE 200
PLANO, TX 750938172
Phone: (972) 473-3947
Type: Mailing
2925 E BROAD ST STE 101
MANSFIELD, TX 760639184
Phone: (317) 396-1234
Fax: (682) 518-5771
Type: Location
700 OLYMPIC PLAZA CIR STE 850
TYLER, TX 757011955
Phone: (903) 595-2441
Fax: (903) 595-0743
Type: Mailing
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 2 Open Payments records for all available years, with a total value of $122.
Total Amount is formed as General ($122) + Research ($0) + Ownership ($0) = $122.
Last reported payment date: 2024-04-24 • Largest payer in this snapshot: Medtronic, Inc. ($94).
Total Amount
$122
General + Research + Ownership
Payments
2
Total payment records
General Amount
$122
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-04-24
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Medtronic, Inc. | $94 |
| Acera Surgical, Inc. | $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: 2020-08-26
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 |
|---|---|---|---|---|
| I20200826003078 | I | Neurosurgery | TX | 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 |
|---|---|---|---|---|
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 66 | 50 | $0 |
| 99291 | Critical care, first 30-74 minutes | 32 | 17 | $0 |
| 99204 | New patient office or other outpatient visit, 45-59 minutes | 32 | 32 | $0 |
| 99222 | Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 28 | 28 | $0 |
| 99221 | Initial hospital care with straightforward or low level of medical decision making, per day, if using time, at least 40 minutes | 27 | 26 | $0 |
Insurance plans in this area (ZIP 75093)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| N E U R O S U R G E R Y | TX | |
| Nurse Practitioner | TX | |
| Nurse Practitioner | TX | |
| N E U R O S U R G E R Y | TX | |
| - | TX | |
| Nurse Practitioner | TX | |
| N E U R O S U R G E R Y | TX |
Reviews
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