CONSTANTINE ZACHARY ZAHARIS (MD) – Emergency Medicine Physician, NPI 1255594115
Emergency Medicine Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
3,232 EMERGENCY MEDICINE in FL
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Provider Addresses for CONSTANTINE ZACHARY ZAHARIS (MD)
12479, Telecom Drive, Temple Terrace, Hillsborough County, Florida, 33637, United States
TEMPLE TERRACE, FL 336370913
Phone: (813) 972-4199
Fax: (813) 972-5753
Type: Mailing
East Fletcher Avenue, Tampa, Hillsborough County, Florida, 33592-2123, United States
TAMPA, FL 336134613
Phone: (813) 971-6000
Fax: (813) 972-5753
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: 2012-08-13
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking 2 Medicare enrollment records; no due dates published yet.
Enrollment records
2
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 |
|---|---|---|---|---|
| I20110623000364 | I | Emergency Medicine | GA | TBD |
| I20120813000433 | I | Emergency 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 |
|---|---|---|---|---|
| 99285 | Emergency department visit with high level of medical decision making | 258 | 250 | $0 |
| 93010 | Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only | 68 | 66 | $0 |
| 99284 | Emergency department visit with moderate level of medical decision making | 40 | 40 | $0 |
| 99291 | Critical care, first 30-74 minutes | 27 | 27 | $0 |
Insurance plans in this area (ZIP 33637)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| - | FL | |
| Emergency Medicine | FL | |
| - | FL | |
| Emergency Medicine | FL | |
| - | FL | |
| - | FL | |
| Emergency Medicine | FL | |
| - | FL | |
| - | IL | |
| Nurse Practitioner | FL |
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