Quick answers
- Does Monica S. Chillianis accept Medicare assignment?
- Yes. Medicare's clinician data says Monica S. Chillianis 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 Monica S. Chillianis see?
- In 2024, CMS data shows 61 Original Medicare patients and 94 services for Monica S. Chillianis. This counts Original Medicare only and measures volume, not quality.
- What is Monica S. Chillianis's NPI number?
- 1164101044. 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 Monica S. Chillianis, 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 | 61 |
|---|---|
| Services billed to Medicare | 94 |
| Different services or procedures | 30 |
| Participating Medicare provider | Yes |
| Average age of these patients | 74 |
Most frequent services
- Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes (99231)53 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%
- Ischemic heart disease74%
- Heart failure61%
- Diabetes52%
- Chronic kidney disease52%
Practice locations
Addresses where Monica S. Chillianis is enrolled with Medicare (CMS data updated October 2, 2026).
- 103 Sitterly Rd, Suite 2700Halfmoon, NY 12065 (518) 581‑2860
- 54 Seward St, Suite 3Saratoga Springs, NY 12866 (518) 581‑2860
Group practices
Medicare enrollment lists Monica S. Chillianis as a member of these groups (CMS data updated October 2, 2026).
- Schweiger Dermatology PLLC260 clinicians in the group
- Saratoga Dermatology PC7 clinicians in the group
Specialties
- Physician Assistantprimary
Other physician assistants in Halfmoon
Clinicians with the same Medicare primary specialty in Halfmoon, NY — not a recommendation.
Other clinicians in Schweiger Dermatology PLLC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | PA |
|---|---|
| Graduation year | 2023 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1164101044 |
| 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