Quick answers
- Which hospitals does Arthur Walczyk work at?
- Medicare's official clinician data lists Arthur Walczyk at 2 hospitals: Sharon Hospital and Vassar Brothers Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Arthur Walczyk see patients?
- Medicare's clinician data lists 1 practice location in Brewster, NY. Call before your visit to confirm the address.
- What is Arthur Walczyk's specialty?
- Medicare lists Gastroenterology as the primary specialty.
- Does Arthur Walczyk accept Medicare assignment?
- Yes. Medicare's clinician data says Arthur Walczyk 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 Arthur Walczyk offer telehealth?
- Medicare's clinician data says Arthur Walczyk offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Arthur Walczyk?
- (845) 279-5187, as listed in official Medicare / NPI Registry data.
- What is Arthur Walczyk's NPI number?
- 1003800723. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Arthur Walczyk works
Medicare's Facility Affiliation Data lists Arthur Walczyk at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Sharon HospitalSharon, CT · Acute Care Hospital · CCN 070004
- Vassar Brothers Medical CenterPoughkeepsie, NY · Acute Care Hospital · CCN 330023
Practice locations
Addresses where Arthur Walczyk is enrolled with Medicare (CMS data updated 2026-10-02).
- 111 Clock Tower CmnsBrewster, NY 10509 (845) 279‑5187
Group practices
Medicare enrollment lists Arthur Walczyk as a member of this group (CMS data updated 2026-10-02).
- Northern Medical Group, PLLC38 clinicians in the group
Specialties
- Gastroenterologyprimary
Other gastroenterologists in Brewster
Clinicians with the same Medicare primary specialty in Brewster, NY — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1985 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1003800723 |
| 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