DR. ANTHONY GEORGE ZISSIMOS (M.D.) – Orthopaedic Surgery Physician, NPI 1629027610
Orthopaedic Surgery Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
Provider Addresses for DR. ANTHONY GEORGE ZISSIMOS (M.D.)
Texas Avenue, Bryan, Brazos County, Texas, 77840, United States
STE 202
BRYAN, TX 778025361
Phone: (979) 774-2053
Fax: (979) 776-5914
Type: Mailing
3201 UNIVERSITY DR E STE 115
SUITE 115
BRYAN, TX 778023476
Phone: (530) 414-1104
Fax: (979) 776-1372
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
No Open Payments data available for this provider.
This can happen when there are no reportable CMS Open Payments records.
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: 2011-11-17
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 |
|---|---|---|---|---|
| I20111117000742 | I | Orthopedic Surgery | 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 | 47 | 44 | $0 |
| 73502 | X-ray of hip, 2-3 views | 34 | 28 | $0 |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 27 | 23 | $0 |
| 99204 | New patient office or other outpatient visit, 45-59 minutes | 20 | 20 | $0 |
| 27236 | Treatment of upper end of broken thigh bone with placement of stabilizing device or prosthetic replacement | 19 | 19 | $0 |
Insurance plans in this area (ZIP 77802)
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Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| ORTHOPEDIC SURGERY | TX | 20610 | Aspiration and/or injection of large joint or joint capsule | 31 | 28 |
Group practice members
| Name | Specialty | State |
|---|---|---|
| - | TX | |
| - | TX | |
| Internal Medicine, Internal Medicine, Hospitalist | LA | |
| Physician Assistant | MA | |
| Hospitalist, Family Practice | TX | |
| Pulmonary Disease, Critical Care (Intensivists) | TX | |
| Pulmonary Disease, Critical Care (Intensivists), Sleep Medicine | TX | |
| - | TX | |
| - | TX | |
| Family Practice | CO |
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