Quick answers
- Does Felix S. Davelman accept Medicare assignment?
- Yes. Medicare's clinician data says Felix S. Davelman 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 Felix S. Davelman see?
- In 2024, CMS data shows 1,018 Original Medicare patients and 6,212 services for Felix S. Davelman. This counts Original Medicare only and measures volume, not quality.
- What is Felix S. Davelman's NPI number?
- 1023276730. 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 Felix S. Davelman, 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 | 1,018 |
|---|---|
| Services billed to Medicare | 6,212 |
| Different services or procedures | 104 |
| Participating Medicare provider | Yes |
| Average age of these patients | 73 |
Most frequent services
- Injection, onabotulinumtoxina, 1 unit (J0585)1,700 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)660 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)495 services
- Insertion of needle into vein for collection of blood sample (36415)312 services
- New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)156 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%
- Arthritis50%
- Ischemic heart disease43%
- Diabetes37%
- Chronic kidney disease28%
Practice locations
Addresses where Felix S. Davelman is enrolled with Medicare (CMS data updated October 2, 2026).
- 48 Route 25aSmithtown, NY 11787 (631) 751‑3000
Group practices
Medicare enrollment lists Felix S. Davelman as a member of this group (CMS data updated October 2, 2026).
- North Shore Hematology Oncology Associates PC479 clinicians in the group
Specialties
- Urologyprimary
Other urologists in Smithtown
Clinicians with the same Medicare primary specialty in Smithtown, NY — not a recommendation.
Other clinicians in North Shore Hematology Oncology Associates PC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | State University Of New York Downstate Medical Center |
| Graduation year | 2002 (24 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1023276730 |
| 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