Ronen Marmur, MD
NPI 1609821818 · Rheumatology Physician · Brewster, NY
Enrolled with Medicare as Practitioner - Rheumatology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ronen Marmur, MD is a Rheumatology Physician provider in Brewster, NY (NPI 1609821818).
Provider details
- NPI number
- 1609821818
- Entity type
- Individual
- Primary specialty
- Rheumatology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 215729 (NY)
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
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
1,187 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 | 155 | $137 |
| Blood Test, Comprehensive Group of Blood Chemicals80053 | 113 | $10 |
| Measurement C-Reactive Protein for Detection of Infection Or Inflammation86140 | 113 | $5 |
| Red Blood Cell Sedimentation Rate, to Detect Inflammation, Automated85652 | 109 | $3 |
| Creatine Kinase (cardiac Enzyme) Level, Total82550 | 107 | $6 |
| Complete Blood Cell Count (red Cells, White Blood Cell, Platelets), Automated Test and Automated Differential White Blood Cell Count85025 | 105 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 43 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Hydroxychloroquine Sulfate | 455 | 177 |
| Methotrexate Sodiumbrand: Methotrexate | 281 | 120 |
| Prednisone | 212 | 123 |
| Allopurinol | 137 | 58 |
| Gabapentin | 136 | 56 |
| Tramadol Hcl | 123 | 37 |
| Methylprednisolone | 110 | 69 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$95 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
- 2006-05-24
- Last updated
- 2017-10-13
Frequently asked questions
- What is Ronen Marmur's NPI number?
- Ronen Marmur's National Provider Identifier (NPI) is 1609821818, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ronen Marmur's specialty?
- Ronen Marmur is listed in the NPPES registry with a primary specialty of Rheumatology Physician (Allopathic & Osteopathic Physicians).
- Where is Ronen Marmur located?
- Ronen Marmur's practice location on file with NPPES is 185 Route 312, Brewster, NY 10509-2337.
- What is Ronen Marmur's phone number?
- The practice phone number listed in the NPPES registry for Ronen Marmur is (845) 278-7000.
- Does Ronen Marmur accept Medicare?
- Ronen Marmur is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ronen Marmur's NPI active?
- Yes — Ronen Marmur's NPI (1609821818) is active in the NPPES registry as of the last update on 2017-10-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.