Physician Profile
Ronen Marmur, MD is a healthcare provider in Brewster, NY specializing in rheumatology. Ronen is also listed as specializing in internal medicine. According to Medicare claims data, Ronen cared for 1,028 Medicare patients across 1,187 services. The services billed most often include established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more, measurement c-reactive protein for detection of infection or inflammation, and blood test, comprehensive group of blood chemicals.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
License numbers are what the provider reported to NPPES when the NPI was issued or updated. NPPES does not verify licensure; confirm current standing with the state licensing board.
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
185 ROUTE 312
Brewster, NY 10509
Within Rheumatology generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Most searched conditions
Autoimmune
Bone
Bone Health
Connective Tissue
Genetic & Connective Tissue
Inflammatory
Joints
Nerve & Tendon
Skin & Soft Tissue
Skin & Vascular
Soft Tissue
Spine & Back
Vascular
Most searched procedures
Consultation
Consultations
Diagnostics & Injections
Education & Support
Imaging
Injections
Lab & Diagnostics
Lab Work
Medication Management
Pain Relief
Regenerative Medicine
1,187 services · 1,028 patients · 17 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Insertion of needle into vein for collection of blood sample | Procedure | 36415 |
103 | Less often than most peers in Rheumatology |
| Administration of chemotherapy into vein, each additional hour | Treatment | 96415 |
60 | Less often than most peers in Rheumatology |
| Administration of chemotherapy into vein, 1 hour or less | Treatment | 96413 |
47 | Less often than most peers in Rheumatology |
| Injection of additional new drug or substance into vein | Treatment | 96375 |
37 | Less often than most peers in Rheumatology |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
155 | As often as other peers in Rheumatology |
| Measurement c-reactive protein for detection of infection or inflammation | Lab test | 86140 |
113 | Less often than most peers in Rheumatology |
| Blood test, comprehensive group of blood chemicals | Lab test | 80053 |
113 | Less often than most peers in Rheumatology |
| Red blood cell sedimentation rate, to detect inflammation, automated | Lab test | 85652 |
109 | Less often than most peers in Rheumatology |
| Creatine kinase (cardiac enzyme) level, total | Lab test | 82550 |
107 | More often than most peers in Rheumatology |
| Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count | Lab test | 85025 |
105 | Less often than most peers in Rheumatology |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Dr. Marmur is a rheumatologist in Brewster, NY. That is the designation recorded for this NPI in the federal registry, where it is listed as “Rheumatology”.
NPI registry
Dr. Marmur is listed at 185 Route 312, Brewster, NY 10509. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
The number on file is (845) 278-7000. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
Dr. Marmur's National Provider Identifier is 1609821818. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Dr. Marmur attended Other, graduating in 1995. This comes from the CMS National Downloadable File.
CMS public data
Dr. Marmur has 31 years experience. Calculated from a graduation year of 1995, reported in the CMS National Downloadable File.
CMS public data
According to Medicare billing data, Dr. Marmur performs procedures including insertion of needle into vein for collection of blood sample; provides treatments such as administration of chemotherapy into vein, each additional hour and administration of chemotherapy into vein, 1 hour or less, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Marmur. If this is you, claiming it is free.
Guide.md
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.