Quick answers
- Which hospitals does Robert Muller work at?
- Medicare's official clinician data lists Robert Muller at 3 hospitals: Geisinger Medical Center, UPMC Muncy and UPMC Williamsport. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Robert Muller see patients?
- Medicare's clinician data lists 6 practice locations, including Middleburg, PA, Williamsport, PA and Montoursville, PA. Call before your visit to confirm the address.
- What is Robert Muller's specialty?
- Medicare lists Family Practice as the primary specialty.
- Does Robert Muller accept Medicare assignment?
- Yes. Medicare's clinician data says Robert Muller 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 Robert Muller?
- (570) 837-5889, as listed in official Medicare / NPI Registry data.
- What is Robert Muller's NPI number?
- 1538377668. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Robert Muller works
Medicare's Facility Affiliation Data lists Robert Muller at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Geisinger Medical CenterDanville, PA · Acute Care Hospital · CCN 390006
- UPMC MuncyMuncy, PA · Critical Access Hospital · CCN 391301
- UPMC WilliamsportWilliamsport, PA · Acute Care Hospital · CCN 390045
Practice locations
Addresses where Robert Muller is enrolled with Medicare (CMS data updated 2026-10-02). The first 5 of 6; the Medicare profile lists all.
- 1 Dock Hill RdMiddleburg, PA 17842 (570) 837‑5889
- 1205 River AveWilliamsport, PA 17701
- 1500 Broad StMontoursville, PA 17754 (570) 368‑2801
- 2000 Westinghouse DrCranberry Township, PA 16066
- 2000 Westinghouse Dr, Suite 200Cranberry Twp, PA 16066
Group practices
Medicare enrollment lists Robert Muller as a member of these groups (CMS data updated 2026-10-02).
- Phoenix Rehabilitation and Health Services Inc2,800 clinicians in the group
- Family Practice Center PC361 clinicians in the group
Specialties
- Family Practiceprimary
Other family doctors in Middleburg
Clinicians with the same Medicare primary specialty in Middleburg, PA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Temple University School Of Medicine |
| Graduation year | 2006 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1538377668 |
| 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