Quick answers
- Which hospitals does Maryssa Lyons work at?
- Medicare's official clinician data lists Maryssa Lyons at 1 hospital: Jefferson Einstein Philadelphia Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Maryssa Lyons see patients?
- Medicare's clinician data lists 1 practice location in Phila, PA. Call before your visit to confirm the address.
- What is Maryssa Lyons's specialty?
- Medicare lists Psychiatry as the primary specialty.
- Does Maryssa Lyons accept Medicare assignment?
- Yes. Medicare's clinician data says Maryssa Lyons 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 Maryssa Lyons?
- (215) 456-9850, as listed in official Medicare / NPI Registry data.
- What is Maryssa Lyons's NPI number?
- 1104447333. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Maryssa Lyons works
Medicare's Facility Affiliation Data lists Maryssa Lyons at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Jefferson Einstein Philadelphia HospitalPhiladelphia, PA · Acute Care Hospital · CCN 390142
Practice locations
Addresses where Maryssa Lyons is enrolled with Medicare (CMS data updated 2026-10-02).
- 5501 Old York RdPhila, PA 19141 (215) 456‑9850
Group practices
Medicare enrollment lists Maryssa Lyons as a member of this group (CMS data updated 2026-10-02).
- Einstein Practice Plan Inc794 clinicians in the group
Specialties
- Psychiatryprimary
Other psychiatrists in Phila
Clinicians with the same Medicare primary specialty in Phila, PA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Central Michigan College Of Medicine |
| Graduation year | 2020 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1104447333 |
| 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