Quick answers
- Does Alphonse D. Osinski accept Medicare assignment?
- Yes. Medicare's clinician data says Alphonse D. Osinski 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 Alphonse D. Osinski see?
- In 2024, CMS data shows 47 Original Medicare patients and 240 services for Alphonse D. Osinski. This counts Original Medicare only and measures volume, not quality.
- What is Alphonse D. Osinski's NPI number?
- 1043324387. 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 Alphonse D. Osinski, 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 | 47 |
|---|---|
| Services billed to Medicare | 240 |
| Different services or procedures | 6 |
| Participating Medicare provider | Yes |
| Average age of these patients | 60 |
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)197 services
- Hospital discharge day management, 30 minutes or less (99238)20 services
- Psychiatric diagnostic evaluation with medical services (90792)13 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 pressure66%
- Anxiety66%
- Depression57%
- High cholesterol51%
- Arthritis40%
- Diabetes28%
Hospitals where Alphonse D. Osinski works
Medicare's Facility Affiliation Data lists Alphonse D. Osinski 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.
- Stamford HospitalStamford, CT · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 070006
Practice locations
Addresses where Alphonse D. Osinski is enrolled with Medicare (CMS data updated October 2, 2026).
- 1 Hospital PlzStamford, CT 06902 (203) 276‑1000
Group practices
Medicare enrollment lists Alphonse D. Osinski as a member of this group (CMS data updated October 2, 2026).
- Stamford Health Medical Group Inc444 clinicians in the group
Specialties
- Psychiatryprimary
Other psychiatrists 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 | State University Of New York At Buffalo School Of Medicine |
| Graduation year | 1992 (34 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1043324387 |
| 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