Quick answers
- Does Maria Cecilia C. Asnis accept Medicare assignment?
- Yes. Medicare's clinician data says Maria Cecilia C. Asnis 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 Maria Cecilia C. Asnis see?
- In 2024, CMS data shows 274 Original Medicare patients and 1,491 services for Maria Cecilia C. Asnis. This counts Original Medicare only and measures volume, not quality.
- What is Maria Cecilia C. Asnis's NPI number?
- 1437475688. 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 Maria Cecilia C. Asnis, 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 | 274 |
|---|---|
| Services billed to Medicare | 1,491 |
| Different services or procedures | 14 |
| Participating Medicare provider | Yes |
| Average age of these patients | 73 |
Most frequent services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)384 services
- Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's (G2211)141 services
- Continuous monitoring of blood sugar level in tissue fluid using sensor under skin with interpretation and report (95251)35 services
- Office or other outpatient visit for the evaluation and management of established patient that may not require presence of healthcare professional (99211)27 services
- New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more (99205)22 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%
- Diabetes52%
- Arthritis45%
- Ischemic heart disease28%
- Anxiety27%
Hospitals where Maria Cecilia C. Asnis works
Medicare's Facility Affiliation Data lists Maria Cecilia C. Asnis at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.
- Greenwich Hospital Association -Greenwich, CT · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 070018
- Stamford HospitalStamford, CT · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 070006
Practice locations
Addresses where Maria Cecilia C. Asnis is enrolled with Medicare (CMS data updated October 2, 2026). The first 5 of 7; the Medicare profile lists all.
- 1 Hospital PlzStamford, CT 06902 (203) 276‑1000
- 29 Hospital PlzStamford, CT 06902
- 292 Long Ridge RdStamford, CT 06902
- 32 Strawberry Hill CtStamford, CT 06902
- 4 Hospital Plz, Suite 102Stamford, CT 06902 (203) 276‑2330
Group practices
Medicare enrollment lists Maria Cecilia C. Asnis as a member of this group (CMS data updated October 2, 2026).
- Stamford Health Medical Group Inc444 clinicians in the group
Specialties
- Endocrinologyprimary
Other endocrinologists in Stamford
Clinicians with the same Medicare primary specialty in Stamford, CT — not a recommendation.
Other clinicians in Stamford Health Medical Group Inc
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Albert Einstein College Of Medicine Of Yeshiva University |
| Graduation year | 2007 (19 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1437475688 |
| 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
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- 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