Quick answers
- Which hospitals does Walter Kwass work at?
- Medicare's official clinician data lists Walter Kwass at 5 hospitals: Baystate Franklin Medical Center, Baystate Medical Center, Baystate Wing Hospital, Holyoke Medical Center and The Cooley Dickinson Hospital Inc. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Walter Kwass see patients?
- Medicare's clinician data lists 2 practice locations, including Holyoke, MA and Palmer, MA. Call before your visit to confirm the address.
- What is Walter Kwass's specialty?
- Medicare lists Vascular Surgery as the primary specialty, and also Internal Medicine.
- Does Walter Kwass accept Medicare assignment?
- Yes. Medicare's clinician data says Walter Kwass 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 Walter Kwass?
- (413) 535-4741, as listed in official Medicare / NPI Registry data.
- What is Walter Kwass's NPI number?
- 1972585008. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Walter Kwass works
Medicare's Facility Affiliation Data lists Walter Kwass 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 Wing HospitalPalmer, MA · Acute Care Hospital · CCN 220030
- Holyoke Medical CenterHolyoke, MA · Acute Care Hospital · CCN 220024
- The Cooley Dickinson Hospital IncNorthampton, MA · Acute Care Hospital · CCN 220015
Practice locations
Addresses where Walter Kwass is enrolled with Medicare (CMS data updated 2026-10-02).
- 18 Hospital DrHolyoke, MA 01040 (413) 535‑4741
- 40 Wright St, Suite 2215Palmer, MA 01069 (413) 370‑7055
Group practices
Medicare enrollment lists Walter Kwass as a member of this group (CMS data updated 2026-10-02).
- Healogics Specialty Physicians of Massachusetts PLLC9 clinicians in the group
Specialties
- Vascular Surgeryprimary
- Internal Medicinealso
Other vascular surgeons in Massachusetts
Clinicians with the same Medicare primary specialty in Massachusetts — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | New York University School Of Medicine |
| Graduation year | 1962 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1972585008 |
| 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