Robert Zaiden, M.D.
NPI 1821143710 · Medical Oncology Physician · Jacksonville, FL
Enrolled with Medicare as Practitioner - Medical Oncology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Robert Zaiden, M.D. is a Medical Oncology Physician provider in Jacksonville, FL (NPI 1821143710).
Provider details
- NPI number
- 1821143710
- Entity type
- Individual
- Primary specialty
- Medical Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- ME103756 (FL)
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
19 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
833 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 543 | $130 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 112 | $187 |
| New Patient Office Or Other Outpatient Visit With a High Level of Medical Decision Making, If Using Time, 60 Minutes Or More99205 | 100 | $223 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 65 | $93 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 13 | $174 |
Typical Medicare-allowed amounts for these services range $93–$223 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
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 |
|---|---|---|
| Prochlorperazine Maleate | 142 | 101 |
| Ondansetron Hcl | 135 | 101 |
| Prednisone | 134 | 33 |
| Enzalutamidebrand: Xtandi | 110 | 14 |
| Abiraterone Acetate | 87 | — |
| Lidocaine/Prilocainebrand: Lidocaine-Prilocaine | 48 | 42 |
| Apalutamidebrand: Erleada | 47 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$365 across 8 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
- 2007-01-24
- Last updated
- 2025-05-19
- Certified
- 2025-05-19
Frequently asked questions
- What is Robert Zaiden's NPI number?
- Robert Zaiden's National Provider Identifier (NPI) is 1821143710, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Robert Zaiden's specialty?
- Robert Zaiden is listed in the NPPES registry with a primary specialty of Medical Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Robert Zaiden located?
- Robert Zaiden's practice location on file with NPPES is 1301 Palm Ave Ste 600, Jacksonville, FL 32207-8432.
- What is Robert Zaiden's phone number?
- The practice phone number listed in the NPPES registry for Robert Zaiden is (904) 202-7300.
- Does Robert Zaiden accept Medicare?
- Robert Zaiden is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Robert Zaiden's NPI active?
- Yes — Robert Zaiden's NPI (1821143710) is active in the NPPES registry as of the last update on 2025-05-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.