Quick answers
- Which hospitals does Karen Loos work at?
- Medicare's official clinician data lists Karen Loos at 2 hospitals: Jefferson Abington Hospital and Thomas Jefferson University Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Karen Loos see patients?
- Medicare's clinician data lists 1 practice location in Philadelphia, PA. Call before your visit to confirm the address.
- What is Karen Loos's specialty?
- Medicare lists Nurse Practitioner as the primary specialty.
- Does Karen Loos accept Medicare assignment?
- Yes. Medicare's clinician data says Karen Loos 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 Karen Loos offer telehealth?
- Medicare's clinician data says Karen Loos offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Karen Loos?
- (215) 923-5676, as listed in official Medicare / NPI Registry data.
- What is Karen Loos's NPI number?
- 1063977973. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Karen Loos works
Medicare's Facility Affiliation Data lists Karen Loos at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Jefferson Abington HospitalAbington, PA · Acute Care Hospital · CCN 390231
- Thomas Jefferson University HospitalPhiladelphia, PA · Acute Care Hospital · CCN 390174
Practice locations
Addresses where Karen Loos is enrolled with Medicare (CMS data updated 2026-10-02).
- 1015 Chestnut St, Suite 1321Philadelphia, PA 19107 (215) 923‑5676
Group practices
Medicare enrollment lists Karen Loos as a member of this group (CMS data updated 2026-10-02).
- Jefferson University Physicians1,531 clinicians in the group
Specialties
- Nurse Practitionerprimary
Other nurse practitioners in Philadelphia
Clinicians with the same Medicare primary specialty in Philadelphia, PA — not a recommendation.
Clinician information
| Credential | NP |
|---|---|
| Graduation year | 2011 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1063977973 |
| 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