Quick answers
- Which hospitals does Stephen C. Mass work at?
- Medicare's official clinician data lists Stephen C. Mass at 3 hospitals: Doylestown Hospital, St Luke's Hospital - Grand View Campus and St Luke's Hospital - Upper Bucks Campus. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Stephen C. Mass see patients?
- Medicare's clinician data lists 2 practice locations, including Doylestown, PA and Lansdale, PA. Call before your visit to confirm the address.
- What is Stephen C. Mass's specialty?
- Medicare lists Otolaryngology as the primary specialty.
- Does Stephen C. Mass accept Medicare assignment?
- Yes. Medicare's clinician data says Stephen C. Mass 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 Stephen C. Mass?
- (215) 348-1152, as listed in official Medicare / NPI Registry data.
- What is Stephen C. Mass's NPI number?
- 1902969157. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Stephen C. Mass works
Medicare's Facility Affiliation Data lists Stephen C. Mass at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Doylestown HospitalDoylestown, PA · Acute Care Hospital · CCN 390203
- St Luke's Hospital - Grand View CampusSellersville, PA · Acute Care Hospital · CCN 390057
- St Luke's Hospital - Upper Bucks CampusQuakertown, PA · Acute Care Hospital · CCN 390035
Practice locations
Addresses where Stephen C. Mass is enrolled with Medicare (CMS data updated 2026-10-02).
- 103 Progress Dr, Suite 103Doylestown, PA 18901 (215) 348‑1152
- 2100 N Broad St, 102 North Penn Medical Arts CenterLansdale, PA 19446 (215) 368‑5290
Group practices
Medicare enrollment lists Stephen C. Mass as a member of this group (CMS data updated 2026-10-02).
- Otolaryngology Plastic Surgery Associates, PC4 clinicians in the group
Specialties
- Otolaryngologyprimary
Other ENT doctors in Doylestown
Clinicians with the same Medicare primary specialty in Doylestown, PA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Duke University School Of Medicine |
| Graduation year | 1994 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1902969157 |
| 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