Hatem Hassanein, M.D.
NPI 1639533508 · Medical Oncology Physician · Orlando, FL
Enrolled with Medicare as Practitioner - Hematology/Oncology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Hatem Hassanein, M.D. is a Medical Oncology Physician provider in Orlando, FL (NPI 1639533508).
Provider details
- NPI number
- 1639533508
- Entity type
- Individual
- Primary specialty
- Medical Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- ME152468 (FL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
10 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
618 Medicare services, 2024 (ranked within specialty)
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 methodology.
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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 326 | $141 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 71 | $116 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 65 | $94 |
| New Patient Office Or Other Outpatient Visit With a High Level of Medical Decision Making, If Using Time, 60 Minutes Or More99205 | 47 | $178 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 37 | $128 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 23 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Abiraterone Acetate | 228 | 27 |
| Prednisone | 204 | 35 |
| Relugolixbrand: Orgovyx | 132 | 16 |
| Apalutamidebrand: Erleada | 122 | 17 |
| Enzalutamidebrand: Xtandi | 92 | 18 |
| Prochlorperazine Maleate | 72 | 38 |
| Lenalidomidebrand: Revlimid | 71 | 18 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2016-04-07
- Last updated
- 2023-04-04
- Certified
- 2023-04-04
Frequently asked questions
- What is Hatem Hassanein's NPI number?
- Hatem Hassanein's National Provider Identifier (NPI) is 1639533508, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Hatem Hassanein's specialty?
- Hatem Hassanein is listed in the NPPES registry with a primary specialty of Medical Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Hatem Hassanein located?
- Hatem Hassanein's practice location on file with NPPES is 1400 S Orange Ave, Orlando, FL 32806-2134.
- What is Hatem Hassanein's phone number?
- The practice phone number listed in the NPPES registry for Hatem Hassanein is (407) 648-3800.
- Does Hatem Hassanein accept Medicare?
- Hatem Hassanein is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Hatem Hassanein's NPI active?
- Yes — Hatem Hassanein's NPI (1639533508) is active in the NPPES registry as of the last update on 2023-04-04.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.