Quick answers
- Which hospitals does David L. Zimmerman work at?
- Medicare's official clinician data lists David L. Zimmerman at 5 hospitals: Danbury Hospital, Griffin Hospital, Johnson Memorial Hospital, Norwalk Hospital and St Francis Hospital & Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does David L. Zimmerman see patients?
- Medicare's clinician data lists 3 practice locations, including Hartford, CT, Danbury, CT and Norwalk, CT. Call before your visit to confirm the address.
- What is David L. Zimmerman's specialty?
- Medicare lists Diagnostic Radiology as the primary specialty.
- Does David L. Zimmerman accept Medicare assignment?
- Yes. Medicare's clinician data says David L. Zimmerman 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 David L. Zimmerman?
- (203) 426-3002, as listed in official Medicare / NPI Registry data.
- What is David L. Zimmerman's NPI number?
- 1891701777. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where David L. Zimmerman works
Medicare's Facility Affiliation Data lists David L. Zimmerman 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
- Griffin HospitalDerby, CT · Acute Care Hospital · CCN 070031
- Johnson Memorial HospitalStafford Springs, CT · Acute Care Hospital · CCN 070008
- Norwalk HospitalNorwalk, CT · Acute Care Hospital · CCN 070034
- St Francis Hospital & Medical CenterHartford, CT · Acute Care Hospital · CCN 070002
Practice locations
Addresses where David L. Zimmerman is enrolled with Medicare (CMS data updated 2026-10-02).
- 114 Woodland StHartford, CT 06105 (203) 426‑3002
- 24 Hospital AveDanbury, CT 06810 (203) 739‑7532
- 34 Maple StNorwalk, CT 06850 (203) 748‑0834
Group practices
Medicare enrollment lists David L. Zimmerman as a member of these groups (CMS data updated 2026-10-02).
- Advanced Imaging Specialists LLC46 clinicians in the group
- Premier Imaging LLC46 clinicians in the group
- Danbury Radiological Associates, PC37 clinicians in the group
Specialties
- Diagnostic Radiologyprimary
Other radiologists in Hartford
Clinicians with the same Medicare primary specialty in Hartford, CT — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Tufts University School Of Medicine |
| Graduation year | 2000 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1891701777 |
| 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