Gregory Ortega, MD
NPI 1720037989 · Hematology & Oncology Physician · Orange City, FL
Enrolled with Medicare as Practitioner - Hematology/Oncology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Gregory Ortega, MD is a Hematology & Oncology Physician provider in Orange City, FL (NPI 1720037989).
Provider details
- NPI number
- 1720037989
- Entity type
- Individual
- Primary specialty
- Hematology & Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- ME41521 (FL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Other Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
9,043 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Complete Blood Cell Count (red Cells, White Blood Cell, Platelets), Automated Test and Automated Differential White Blood Cell Count85025 | 1,235 | $8 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 984 | $9 |
| Blood Test, Comprehensive Group of Blood Chemicals80053 | 812 | $10 |
| Phosphate Level84100 | 800 | $5 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 683 | $88 |
| Injection of Drug Or Substance Under Skin Or Into Muscle96372 | 427 | $14 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 49 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Anastrozole | 117 | 30 |
| Apixabanbrand: Eliquis | 100 | 30 |
| Acyclovir | 53 | 11 |
| Epoetin Alfabrand: Procrit | 46 | 11 |
| Prednisone | 41 | 15 |
| Prochlorperazine Maleate | 36 | 31 |
| Ondansetronbrand: Ondansetron Odt | 34 | 27 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$39 across 2 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-05-08
- Last updated
- 2017-12-14
Frequently asked questions
- What is Gregory Ortega's NPI number?
- Gregory Ortega's National Provider Identifier (NPI) is 1720037989, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gregory Ortega's specialty?
- Gregory Ortega is listed in the NPPES registry with a primary specialty of Hematology & Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Gregory Ortega located?
- Gregory Ortega's practice location on file with NPPES is 2776 Enterprise Rd, Orange City, FL 32763-8316.
- What is Gregory Ortega's phone number?
- The practice phone number listed in the NPPES registry for Gregory Ortega is (386) 774-1223.
- Does Gregory Ortega accept Medicare?
- Gregory Ortega is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Gregory Ortega's NPI active?
- Yes — Gregory Ortega's NPI (1720037989) is active in the NPPES registry as of the last update on 2017-12-14.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.