Quick answers
- Does Marissa Vartak accept Medicare assignment?
- Yes. Medicare's clinician data says Marissa Vartak 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 Marissa Vartak see?
- In 2024, CMS data shows 138 Original Medicare patients and 1,356 services for Marissa Vartak. This counts Original Medicare only and measures volume, not quality.
- What is Marissa Vartak's NPI number?
- 1821537945. 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 Marissa Vartak, 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 | 138 |
|---|---|
| Services billed to Medicare | 1,356 |
| Different services or procedures | 43 |
| Participating Medicare provider | Yes |
| Average age of these patients | 80 |
Most frequent services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)202 services
- Chronic care management services, first 20 minutes of clinical staff time directed by health care professional, per calendar month (99490)187 services
- Residence visit for established patient with high level of medical decision making, per day, if using time, at least 60 minutes (99350)174 services
- Advance care planning, first 30 minutes (99497)133 services
- Insertion of needle into vein for collection of blood sample (36415)111 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%
- Arthritis51%
- Anxiety50%
- Alzheimer's disease or dementia44%
- Depression38%
Practice locations
Addresses where Marissa Vartak is enrolled with Medicare (CMS data updated October 2, 2026).
- 5972 State Route 31Cicero, NY 13039 (315) 698‑4888
Group practices
Medicare enrollment lists Marissa Vartak as a member of this group (CMS data updated October 2, 2026).
- On Care Family Health NP PLLC5 clinicians in the group
Specialties
- Nurse Practitionerprimary
Other nurse practitioners in Cicero
Clinicians with the same Medicare primary specialty in Cicero, NY — not a recommendation.
Other clinicians in On Care Family Health NP PLLC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | NP |
|---|---|
| Graduation year | 2017 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1821537945 |
| 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