Quick answers
- Does Rosario Giacomini accept Medicare assignment?
- Yes. Medicare's clinician data says Rosario Giacomini 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 Rosario Giacomini see?
- In 2024, CMS data shows 91 Original Medicare patients and 268 services for Rosario Giacomini. This counts Original Medicare only and measures volume, not quality.
- What is Rosario Giacomini's NPI number?
- 1194354761. 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 Rosario Giacomini, 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 | 91 |
|---|---|
| Services billed to Medicare | 268 |
| Different services or procedures | 26 |
| Participating Medicare provider | Yes |
| Average age of these patients | 75 |
Most frequent services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)88 services
- Detection test by immunoassay with direct visual observation for influenza virus (87804)32 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)28 services
- Detection test by immunoassay with direct visual observation for severe acute respiratory syndrome coronavirus 2 (covid-19) (87811)20 services
- Detection test by immunoassay with direct visual observation for streptococcus, group a (strep) (87880)16 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 cholesterol75%
- High blood pressure74%
- Arthritis36%
- Ischemic heart disease26%
- Diabetes24%
- Anxiety23%
Hospitals where Rosario Giacomini works
Medicare's Facility Affiliation Data lists Rosario Giacomini 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.
- Bridgeport HospitalBridgeport, CT · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 070010
- Greenwich Hospital Association -Greenwich, CT · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 070018
- St Vincent's Medical CenterBridgeport, CT · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 070028
Practice locations
Addresses where Rosario Giacomini is enrolled with Medicare (CMS data updated October 2, 2026).
- 1505 Post Rd E, Suite 102Westport, CT 06880 (203) 221‑3830
Group practices
Medicare enrollment lists Rosario Giacomini as a member of this group (CMS data updated October 2, 2026).
- Hartford Healthcare Medical Group Specialists PLLC1,588 clinicians in the group
Specialties
- Family Practiceprimary
Other family doctors in Connecticut
Clinicians with the same Medicare primary specialty in Connecticut — not a recommendation.
Other clinicians in Hartford Healthcare Medical Group Specialists PLLC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | DO |
|---|---|
| Graduation year | 2020 (6 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1194354761 |
| 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