Ramzi Abboud, MD
NPI 1649684200 · Medical Oncology Physician · Saint Louis, MO
Enrolled with Medicare as Practitioner - Medical Oncology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ramzi Abboud, MD is a Medical Oncology Physician provider in Saint Louis, MO (NPI 1649684200).
Provider details
- NPI number
- 1649684200
- Entity type
- Individual
- Primary specialty
- Medical Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 2015043482 (MO)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
12 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
671 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) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 242 | $76 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 232 | $114 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 50 | $123 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 49 | $9 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 48 | $174 |
| Administration of Chemotherapy Into Vein, 1 Hour Or Less96413 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 15 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Valacyclovir Hclbrand: Valacyclovir | 58 | 12 |
| Ciprofloxacin Hcl | 51 | 14 |
| Fluconazole | 41 | 16 |
| Acyclovir | 37 | 15 |
| Venetoclaxbrand: Venclexta | 35 | 13 |
| Oxycodone Hcl | 25 | 11 |
| Belumosudil Mesylatebrand: Rezurock | 20 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$94 across 5 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
- 2014-06-11
- Last updated
- 2025-04-15
- Certified
- 2022-01-19
Frequently asked questions
- What is Ramzi Abboud's NPI number?
- Ramzi Abboud's National Provider Identifier (NPI) is 1649684200, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ramzi Abboud's specialty?
- Ramzi Abboud is listed in the NPPES registry with a primary specialty of Medical Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Ramzi Abboud located?
- Ramzi Abboud's practice location on file with NPPES is 1 Barnes Jewish Hospital Plz, Saint Louis, MO 63110-1003.
- What is Ramzi Abboud's phone number?
- The practice phone number listed in the NPPES registry for Ramzi Abboud is (314) 454-8304.
- Does Ramzi Abboud accept Medicare?
- Ramzi Abboud is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ramzi Abboud's NPI active?
- Yes — Ramzi Abboud's NPI (1649684200) is active in the NPPES registry as of the last update on 2025-04-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.