Quick answers
- Does Borys R. Mychalczak accept Medicare assignment?
- Yes. Medicare's clinician data says Borys R. Mychalczak 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 Borys R. Mychalczak see?
- In 2024, CMS data shows 584 Original Medicare patients and 3,258 services for Borys R. Mychalczak. This counts Original Medicare only and measures volume, not quality.
- What is Borys R. Mychalczak's NPI number?
- 1932189180. 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 Borys R. Mychalczak, 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 | 584 |
|---|---|
| Services billed to Medicare | 3,258 |
| Different services or procedures | 34 |
| Participating Medicare provider | Yes |
| Average age of these patients | 74 |
Most frequent services
- Stereoscopic x-ray guidance for localization of target volume for the delivery of radiation therapy (G6002)1,482 services
- Calculation of radiation therapy dose (77300)397 services
- Radiation treatment management, 5 treatment sessions (77427)287 services
- New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more (99205)143 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)138 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%
- Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)75%
- Arthritis43%
- Ischemic heart disease36%
- Anxiety27%
Practice locations
Addresses where Borys R. Mychalczak is enrolled with Medicare (CMS data updated October 2, 2026). The first 5 of 7; the Medicare profile lists all.
- 1101 Hempstead TpkeUniondale, NY 11553 (516) 559‑1000
- 1275 York AveNew York, NY 10065 (212) 639‑2000
- 136 Mountain View BlvdBasking Ridge, NJ 07920
- 136 Mountainview BlvdBasking Ridge, NJ 07920 (908) 542‑3000
- 225 Summit AveMontvale, NJ 07645 (908) 542‑3336
Group practices
Medicare enrollment lists Borys R. Mychalczak as a member of these groups (CMS data updated October 2, 2026).
- MSK Monmouth295 clinicians in the group
- MSK Bergen255 clinicians in the group
- Memorial Sloan Kettering Cancer Center at Basking Ridge New Jersey229 clinicians in the group
- Memorial Radiation Oncology Group92 clinicians in the group
Specialties
- Radiation Oncologyprimary
Other radiation oncologists in Uniondale
Clinicians with the same Medicare primary specialty in Uniondale, NY — not a recommendation.
Other clinicians in MSK Monmouth
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Wayne State University School Of Medicine |
| Graduation year | 1985 (41 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1932189180 |
| 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
- 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