Quick answers
- Does Masumeh Rafati Javidan accept Medicare assignment?
- Yes. Medicare's clinician data says Masumeh Rafati Javidan accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- How many Medicare patients does Masumeh Rafati Javidan see?
- In 2024, CMS data shows 430 Original Medicare patients and 43,913 services for Masumeh Rafati Javidan. This counts Original Medicare only and measures volume, not quality.
- What is Masumeh Rafati Javidan's NPI number?
- 1467699942. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Medicare activity in 2024
Official CMS public-use data for Masumeh Rafati Javidan, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.
| Original Medicare patients | 430 |
|---|---|
| Services billed to Medicare | 43,913 |
| Different services or procedures | 72 |
| Participating Medicare provider | Yes |
| Average age of these patients | 78 |
Most frequent services
- Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)1,048 services
- Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count (85025)296 services
- Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)273 services
- Insertion of needle into vein for collection of blood sample (36415)221 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)205 services
Chronic conditions among these patients
Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).
- High blood pressure75%
- High cholesterol75%
- Diabetes73%
- Ischemic heart disease67%
- Chronic kidney disease58%
- Heart failure57%
Hospitals where Masumeh Rafati Javidan works
Medicare's Facility Affiliation Data lists Masumeh Rafati Javidan at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.
- Maimonides Medical CenterBrooklyn, NY · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 330194
- Mount Sinai Beth IsraelNew York, NY · Acute Care Hospital · closed, according to its website · CCN 330169
- New York Community Hospital of Brooklyn, Inc.Brooklyn, NY · Acute Care Hospital · Medicare rating: 1 of 5 stars · Emergency services: listed by Medicare · CCN 330019
- New York-Presbyterian HospitalNew York, NY · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 330101
Practice locations
Addresses where Masumeh Rafati Javidan is enrolled with Medicare (CMS data updated October 2, 2026).
- 500 4th Ave, Suite 1Brooklyn, NY 11215 (718) 208‑1820
Group practices
Medicare enrollment lists Masumeh Rafati Javidan as a member of this group (CMS data updated October 2, 2026).
- Dosik Hematology and Oncology PC4 clinicians in the group
Specialties
- Hematology/Oncologyprimary
Other hematologist-oncologists in Brooklyn
Clinicians with the same Medicare primary specialty in Brooklyn, NY — not a recommendation.
Other clinicians in Dosik Hematology and Oncology PC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2000 (26 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1467699942 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians