Quick answers
- Does Donald L. Calzolaio accept Medicare assignment?
- Yes. Medicare's clinician data says Donald L. Calzolaio 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 Donald L. Calzolaio see?
- In 2024, CMS data shows 37 Original Medicare patients and 85 services for Donald L. Calzolaio. This counts Original Medicare only and measures volume, not quality.
- What is Donald L. Calzolaio's NPI number?
- 1689641995. 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 Donald L. Calzolaio, 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 | 37 |
|---|---|
| Services billed to Medicare | 85 |
| Different services or procedures | 18 |
| Participating Medicare provider | Yes |
| Average age of these patients | 65 |
Most frequent services
- Cervical or vaginal cancer screening; pelvic and clinical breast examination (G0101)20 services
- Screening papanicolaou smear; obtaining, preparing and conveyance of cervical or vaginal smear to laboratory (Q0091)19 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)18 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 cholesterol70%
- High blood pressure62%
- Arthritis43%
- Anxiety41%
- Depression32%
Hospitals where Donald L. Calzolaio works
Medicare's Facility Affiliation Data lists Donald L. Calzolaio 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.
- Bassett HealthcareCooperstown, NY · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 330136
Practice locations
Addresses where Donald L. Calzolaio is enrolled with Medicare (CMS data updated October 2, 2026).
- 761 Main AveNorwalk, CT 06851 (203) 403‑3490
Group practices
Medicare enrollment lists Donald L. Calzolaio as a member of this group (CMS data updated October 2, 2026).
- Nuvance Health Medical Practice Ct Inc747 clinicians in the group
Specialties
- Obstetrics/Gynecologyprimary
Other OB-GYNs in Norwalk
Clinicians with the same Medicare primary specialty in Norwalk, CT — not a recommendation.
Other clinicians in Nuvance Health Medical Practice Ct Inc
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | State University Of Ny Upstate Medical University |
| Graduation year | 1988 (38 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1689641995 |
| 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