DR. MARK CHRISTOPHER DELEON (M.D.) – Hematology & Oncology Physician, NPI 1174557649
Hematology & Oncology Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
1,007 HEMATOLOGY/ONCOLOGY in FL
Provider Addresses for DR. MARK CHRISTOPHER DELEON (M.D.)
27 MACK BAYOU LOOP
SANTA ROSA BEACH, FL 324592613
Phone: (850) 622-0873
Fax: (850) 622-1912
Type: Mailing
Band Box Place, Dallas, Dallas County, Texas, 75244, United States
DALLAS, TX 753911242
Phone: (972) 997-8000
Fax: (972) 234-2987
Type: Mailing
Louis Pasteur Drive, South Texas Medical Center, San Antonio, Bexar County, Texas, 78229, United States
SAN ANTONIO, TX 782293832
Phone: (210) 656-7177
Fax: (210) 656-3687
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 212 Open Payments records for all available years, with a total value of $4,403.
Total Amount is formed as General ($4,403) + Research ($0) + Ownership ($0) = $4,403.
Last reported payment date: 2024-12-23 • Largest payer in this snapshot: Novartis Pharmaceuticals Corporation ($289).
Total Amount
$4,403
General + Research + Ownership
Payments
212
Total payment records
General Amount
$4,403
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-12-23
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Novartis Pharmaceuticals Corporation | $289 |
| Merck Sharp & Dohme LLC | $203 |
| Genentech USA, Inc. | $180 |
| Celgene Corporation | $170 |
| PFIZER INC. | $153 |
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: 2021-01-15
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 |
|---|---|---|---|---|
| I20210115001132 | I | Hematology/Oncology | 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 |
|---|---|---|---|---|
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 609 | 220 | $0 |
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 236 | 185 | $0 |
| 99212 | Established patient office or other outpatient visit, 10-19 minutes | 77 | 74 | $0 |
| 99215 | Established patient office or other outpatient visit, 40-54 minutes | 50 | 39 | $0 |
| 99204 | New patient office or other outpatient visit, 45-59 minutes | 44 | 44 | $0 |
Insurance plans in this area (ZIP 32459)
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Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| HEMATOLOGY/ONCOLOGY | TX | 78815 | Nuclear medicine study with CT imaging skull base to mid-thigh | 49 | 45 |
Group practice members
| Name | Specialty | State |
|---|---|---|
| Nurse Practitioner | FL | |
| - | FL | |
| Nurse Practitioner | FL | |
| - | FL | |
| - | FL | |
| Nephrology, Internal Medicine | FL | |
| Interventional Cardiology | AL | |
| Nurse Practitioner | FL | |
| Physician Assistant | FL | |
| Orthopedic Surgery | FL |
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