Quick answers
- Which hospitals does Ryan J. Dadasovich work at?
- Medicare's official clinician data lists Ryan J. Dadasovich at 3 hospitals: Danbury Hospital, Greenwich Hospital Association - and Griffin Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Ryan J. Dadasovich see patients?
- Medicare's clinician data lists 3 practice locations, including Stamford, CT, New Milford, CT and Danbury, CT. Call before your visit to confirm the address.
- What is Ryan J. Dadasovich's specialty?
- Medicare lists Internal Medicine as the primary specialty.
- Does Ryan J. Dadasovich accept Medicare assignment?
- Yes. Medicare's clinician data says Ryan J. Dadasovich accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
- What is the phone number for Ryan J. Dadasovich?
- (203) 863-3671, as listed in official Medicare / NPI Registry data.
- What is Ryan J. Dadasovich's NPI number?
- 1639390750. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Ryan J. Dadasovich works
Medicare's Facility Affiliation Data lists Ryan J. Dadasovich at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Danbury HospitalDanbury, CT · Acute Care Hospital · CCN 070033
- Greenwich Hospital Association -Greenwich, CT · Acute Care Hospital · CCN 070018
- Griffin HospitalDerby, CT · Acute Care Hospital · CCN 070031
Practice locations
Addresses where Ryan J. Dadasovich is enrolled with Medicare (CMS data updated 2026-10-02).
- 2015 W Main St, Suite 150Stamford, CT 06902 (203) 863‑3671
- 21 Elm StNew Milford, CT 06776 (860) 210‑5390
- 24 Hospital AveDanbury, CT 06810 (203) 739‑7118
Group practices
Medicare enrollment lists Ryan J. Dadasovich as a member of these groups (CMS data updated 2026-10-02).
- Northeast Medical Group Inc1,360 clinicians in the group
- Nuvance Health Medical Practice Ct Inc747 clinicians in the group
Specialties
- Internal Medicineprimary
Other internal medicine doctors in Stamford
Clinicians with the same Medicare primary specialty in Stamford, CT — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2006 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1639390750 |
| 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 2026-10-02, retrieved 2026-10-29
- National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
- 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