Quick answers
- Which hospitals does Ian D. Kleinhen work at?
- Medicare's official clinician data lists Ian D. Kleinhen at 1 hospital: Hartford Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Ian D. Kleinhen see patients?
- Medicare's clinician data lists 3 practice locations, including Pawcatuck, CT, Windsor, CT and Simsbury, CT. Call before your visit to confirm the address.
- What is Ian D. Kleinhen's specialty?
- Medicare lists Internal Medicine as the primary specialty.
- Does Ian D. Kleinhen accept Medicare assignment?
- Yes. Medicare's clinician data says Ian D. Kleinhen 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 Ian D. Kleinhen?
- (860) 495-1919, as listed in official Medicare / NPI Registry data.
- What is Ian D. Kleinhen's NPI number?
- 1013916808. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Ian D. Kleinhen works
Medicare's Facility Affiliation Data lists Ian D. Kleinhen at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Hartford HospitalHartford, CT · Acute Care Hospital · CCN 070025
Practice locations
Addresses where Ian D. Kleinhen is enrolled with Medicare (CMS data updated 2026-10-02).
- 37 S Broad St, Unit 12Pawcatuck, CT 06379 (860) 495‑1919
- 74 Mack St, Suite 1Windsor, CT 06095 (860) 580‑7071
- 75 Great Pond RdSimsbury, CT 06070
Group practices
Medicare enrollment lists Ian D. Kleinhen as a member of these groups (CMS data updated 2026-10-02).
- Ptsma Inc224 clinicians in the group
- McLean Fund108 clinicians in the group
Specialties
- Internal Medicineprimary
Other internal medicine doctors in Pawcatuck
Clinicians with the same Medicare primary specialty in Pawcatuck, CT — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Georgetown University School Of Medicine |
| Graduation year | 1995 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1013916808 |
| 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