Quick answers
- Which hospitals does Roy I. Sittig work at?
- Medicare's official clinician data lists Roy I. Sittig at 1 hospital: St Vincent Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Roy I. Sittig see patients?
- Medicare's clinician data lists 2 practice locations, including Framingham, MA and Worcester, MA. Call before your visit to confirm the address.
- What is Roy I. Sittig's specialty?
- Medicare lists Hospitalist as the primary specialty, and also Internal Medicine.
- Does Roy I. Sittig accept Medicare assignment?
- Yes. Medicare's clinician data says Roy I. Sittig 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 Roy I. Sittig?
- (508) 383-1000, as listed in official Medicare / NPI Registry data.
- What is Roy I. Sittig's NPI number?
- 1740291376. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Roy I. Sittig works
Medicare's Facility Affiliation Data lists Roy I. Sittig at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- St Vincent HospitalWorcester, MA · Acute Care Hospital · CCN 220176
Practice locations
Addresses where Roy I. Sittig is enrolled with Medicare (CMS data updated 2026-10-02).
- 115 Lincoln StFramingham, MA 01702 (508) 383‑1000
- 123 Summer StWorcester, MA 01608 (508) 363‑9394
Group practices
Medicare enrollment lists Roy I. Sittig as a member of this group (CMS data updated 2026-10-02).
- Hospitalist Physicians of Massachusetts PC85 clinicians in the group
Specialties
- Hospitalistprimary
- Internal Medicinealso
Other hospitalists in Framingham
Clinicians with the same Medicare primary specialty in Framingham, MA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Maryland School Of Medicine |
| Graduation year | 2001 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1740291376 |
| 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