Quick answers
- Which hospitals does Gregory Haman work at?
- Medicare's official clinician data lists Gregory Haman at 3 hospitals: Hartford Hospital, William W Backus Hospital and Windham Community Memorial Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Gregory Haman see patients?
- Medicare's clinician data lists 1 practice location in Willimantic, CT. Call before your visit to confirm the address.
- What is Gregory Haman's specialty?
- Medicare lists Internal Medicine as the primary specialty.
- Does Gregory Haman accept Medicare assignment?
- Yes. Medicare's clinician data says Gregory Haman 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.
- Does Gregory Haman offer telehealth?
- Medicare's clinician data says Gregory Haman offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Gregory Haman?
- (860) 423-5000, as listed in official Medicare / NPI Registry data.
- What is Gregory Haman's NPI number?
- 1033590773. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Gregory Haman works
Medicare's Facility Affiliation Data lists Gregory Haman 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
- William W Backus HospitalNorwich, CT · Acute Care Hospital · CCN 070024
- Windham Community Memorial HospitalWillimantic, CT · Acute Care Hospital · CCN 070021
Practice locations
Addresses where Gregory Haman is enrolled with Medicare (CMS data updated 2026-10-02).
- 5 Founders StWillimantic, CT 06226 (860) 423‑5000
Group practices
Medicare enrollment lists Gregory Haman as a member of this group (CMS data updated 2026-10-02).
- Hartford Healthcare Medical Group Inc267 clinicians in the group
Specialties
- Internal Medicineprimary
Other internal medicine doctors in Willimantic
Clinicians with the same Medicare primary specialty in Willimantic, CT — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Harvard Medical School |
| Graduation year | 2015 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1033590773 |
| 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