Quick answers
- Does Christopher A. Finnegan accept Medicare assignment?
- Yes. Medicare's clinician data says Christopher A. Finnegan 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 Christopher A. Finnegan see?
- In 2024, CMS data shows 525 Original Medicare patients and 931 services for Christopher A. Finnegan. This counts Original Medicare only and measures volume, not quality.
- What is Christopher A. Finnegan's NPI number?
- 1275597213. 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 Christopher A. Finnegan, 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 | 525 |
|---|---|
| Services billed to Medicare | 931 |
| Different services or procedures | 47 |
| Participating Medicare provider | Yes |
| Average age of these patients | 72 |
Most frequent services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)365 services
- Detection test by immunoassay technique for severe acute respiratory syndrome coronavirus and influenza (87428)118 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)83 services
- New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)63 services
- Automated urinalysis test (81003)55 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 cholesterol75%
- High blood pressure74%
- Arthritis48%
- Ischemic heart disease33%
- Anxiety32%
- Diabetes27%
Practice locations
Addresses where Christopher A. Finnegan is enrolled with Medicare (CMS data updated October 2, 2026). The first 5 of 11; the Medicare profile lists all.
- 100 Granny Rd, Suite 1Farmingville, NY 11738 (631) 696‑4357
- 129 Sunrise Hwy WPatchogue, NY 11772 (631) 230‑5775
- 1850 Sunrise HwyBay Shore, NY 11706 (631) 581‑5900
- 336 E 86th StNew York, NY 10028 (212) 772‑3627
- 47 Route 25aRocky Point, NY 11778 (631) 821‑5900
Group practices
Medicare enrollment lists Christopher A. Finnegan as a member of these groups (CMS data updated October 2, 2026).
- City Medical of Upper East Side PLLC658 clinicians in the group
- CS Medical Associates, PC67 clinicians in the group
Specialties
- Physician Assistantprimary
Other physician assistants in Farmingville
Clinicians with the same Medicare primary specialty in Farmingville, NY — not a recommendation.
Other clinicians in City Medical of Upper East Side PLLC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | PA |
|---|---|
| Graduation year | 1995 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1275597213 |
| 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