Quick answers
- Which hospitals does Theodore B. Lefer work at?
- Medicare's official clinician data lists Theodore B. Lefer at 5 hospitals: Baystate Franklin Medical Center, Baystate Medical Center, Baystate Noble Hospital, Brattleboro Memorial Hospital and Mary Hitchcock Memorial Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Theodore B. Lefer see patients?
- Medicare's clinician data lists 1 practice location in Greenfield, MA. Call before your visit to confirm the address.
- What is Theodore B. Lefer's specialty?
- Medicare lists Hospitalist as the primary specialty, and also Family Practice.
- Does Theodore B. Lefer accept Medicare assignment?
- Yes. Medicare's clinician data says Theodore B. Lefer 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 Theodore B. Lefer?
- (413) 773-2840, as listed in official Medicare / NPI Registry data.
- What is Theodore B. Lefer's NPI number?
- 1578822748. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Theodore B. Lefer works
Medicare's Facility Affiliation Data lists Theodore B. Lefer at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Baystate Franklin Medical CenterGreenfield, MA · Acute Care Hospital · CCN 220016
- Baystate Medical CenterSpringfield, MA · Acute Care Hospital · CCN 220077
- Baystate Noble HospitalWestfield, MA · Acute Care Hospital · CCN 220065
- Brattleboro Memorial HospitalBrattleboro, VT · Acute Care Hospital · CCN 470011
- Mary Hitchcock Memorial HospitalLebanon, NH · Acute Care Hospital · CCN 300003
Practice locations
Addresses where Theodore B. Lefer is enrolled with Medicare (CMS data updated 2026-10-02).
- 164 High StGreenfield, MA 01301 (413) 773‑2840
Group practices
Medicare enrollment lists Theodore B. Lefer as a member of this group (CMS data updated 2026-10-02).
- Baystate Medical Practices Inc1,369 clinicians in the group
Specialties
- Hospitalistprimary
- Family Practicealso
Other hospitalists in Greenfield
Clinicians with the same Medicare primary specialty in Greenfield, MA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2012 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1578822748 |
| 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