Quick answers
- Which hospitals does Alexander E. Ladenheim work at?
- Medicare's official clinician data lists Alexander E. Ladenheim at 3 hospitals: Bridgeport Hospital, Greenwich Hospital Association - and Yale-New Haven Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Alexander E. Ladenheim see patients?
- Medicare's clinician data lists 1 practice location in New Haven, CT. Call before your visit to confirm the address.
- What is Alexander E. Ladenheim's specialty?
- Medicare lists Pathology as the primary specialty.
- Does Alexander E. Ladenheim accept Medicare assignment?
- Yes. Medicare's clinician data says Alexander E. Ladenheim 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 Alexander E. Ladenheim?
- (203) 688-4242, as listed in official Medicare / NPI Registry data.
- What is Alexander E. Ladenheim's NPI number?
- 1528520434. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Alexander E. Ladenheim works
Medicare's Facility Affiliation Data lists Alexander E. Ladenheim at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Bridgeport HospitalBridgeport, CT · Acute Care Hospital · CCN 070010
- Greenwich Hospital Association -Greenwich, CT · Acute Care Hospital · CCN 070018
- Yale-New Haven HospitalNew Haven, CT · Acute Care Hospital · CCN 070022
Practice locations
Addresses where Alexander E. Ladenheim is enrolled with Medicare (CMS data updated 2026-10-02).
- 20 York StNew Haven, CT 06510 (203) 688‑4242
Group practices
Medicare enrollment lists Alexander E. Ladenheim as a member of this group (CMS data updated 2026-10-02).
- Yale University2,645 clinicians in the group
Specialties
- Pathologyprimary
Other pathologists in New Haven
Clinicians with the same Medicare primary specialty in New Haven, CT — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | New York Medical College |
| Graduation year | 2019 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1528520434 |
| 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