Quick answers
- Which hospitals does Yesenia Greeff work at?
- Medicare's official clinician data lists Yesenia Greeff at 4 hospitals: Baystate Franklin Medical Center, Baystate Medical Center, Baystate Noble Hospital and Baystate Wing Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Yesenia Greeff see patients?
- Medicare's clinician data lists 1 practice location in Springfield, MA. Call before your visit to confirm the address.
- What is Yesenia Greeff's specialty?
- Medicare lists Gastroenterology as the primary specialty, and also Internal Medicine.
- Does Yesenia Greeff accept Medicare assignment?
- Yes. Medicare's clinician data says Yesenia Greeff 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 Yesenia Greeff offer telehealth?
- Medicare's clinician data says Yesenia Greeff offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Yesenia Greeff?
- (413) 794-9338, as listed in official Medicare / NPI Registry data.
- What is Yesenia Greeff's NPI number?
- 1598026494. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Yesenia Greeff works
Medicare's Facility Affiliation Data lists Yesenia Greeff 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
- Baystate Wing HospitalPalmer, MA · Acute Care Hospital · CCN 220030
Practice locations
Addresses where Yesenia Greeff is enrolled with Medicare (CMS data updated 2026-10-02).
- 3350 Main StSpringfield, MA 01107 (413) 794‑9338
Group practices
Medicare enrollment lists Yesenia Greeff as a member of this group (CMS data updated 2026-10-02).
- Baystate Medical Practices Inc1,369 clinicians in the group
Specialties
- Gastroenterologyprimary
- Internal Medicinealso
Other gastroenterologists in Springfield
Clinicians with the same Medicare primary specialty in Springfield, MA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Boston University School Of Medicine |
| Graduation year | 2012 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1598026494 |
| 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