Quick answers
- Which hospitals does Jonathan M. Stein work at?
- Medicare's official clinician data lists Jonathan M. Stein at 2 hospitals: Marlborough Hospital and UMass Memorial Medical Center/University Campus. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Jonathan M. Stein see patients?
- Medicare's clinician data lists 4 practice locations, including Marlborough, MA and Worcester, MA. Call before your visit to confirm the address.
- What is Jonathan M. Stein's specialty?
- Medicare lists Anesthesiology as the primary specialty.
- Does Jonathan M. Stein accept Medicare assignment?
- Yes. Medicare's clinician data says Jonathan M. Stein 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 Jonathan M. Stein?
- (508) 481-7390, as listed in official Medicare / NPI Registry data.
- What is Jonathan M. Stein's NPI number?
- 1285616268. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Jonathan M. Stein works
Medicare's Facility Affiliation Data lists Jonathan M. Stein at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Marlborough HospitalMarlborough, MA · Acute Care Hospital · CCN 220049
- UMass Memorial Medical Center/University CampusWorcester, MA · Acute Care Hospital · CCN 220163
Practice locations
Addresses where Jonathan M. Stein is enrolled with Medicare (CMS data updated 2026-10-02).
- 155 Union StMarlborough, MA 01752 (508) 481‑7390
- 157 Union StMarlborough, MA 01752 (508) 486‑5521
- 21 Eastern AveWorcester, MA 01605 (508) 856‑2500
- 55 Lake Ave NWorcester, MA 01655 (508) 334‑1000
Group practices
Medicare enrollment lists Jonathan M. Stein as a member of this group (CMS data updated 2026-10-02).
- UMass Memorial Medical Group Inc2,516 clinicians in the group
Specialties
- Anesthesiologyprimary
Other anesthesiologists in Massachusetts
Clinicians with the same Medicare primary specialty in Massachusetts — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Boston University School Of Medicine |
| Graduation year | 1978 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1285616268 |
| 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