Quick answers
- Which hospitals does Mary K. Miller work at?
- Medicare's official clinician data lists Mary K. Miller at 1 hospital: Christiana Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Mary K. Miller see patients?
- Medicare's clinician data lists 2 practice locations, including Smyrna, DE and Newark, DE. Call before your visit to confirm the address.
- What is Mary K. Miller's specialty?
- Medicare lists Clinical Psychologist as the primary specialty.
- Does Mary K. Miller accept Medicare assignment?
- Yes. Medicare's clinician data says Mary K. Miller 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 Mary K. Miller?
- (302) 653-1900, as listed in official Medicare / NPI Registry data.
- What is Mary K. Miller's NPI number?
- 1255991998. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Mary K. Miller works
Medicare's Facility Affiliation Data lists Mary K. Miller at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Christiana HospitalNewark, DE · Acute Care Hospital · CCN 080001
Practice locations
Addresses where Mary K. Miller is enrolled with Medicare (CMS data updated 2026-10-02).
- 100 Sunnyside RdSmyrna, DE 19977 (302) 653‑1900
- 4755 Ogletown Stanton RdNewark, DE 19718
Group practices
Medicare enrollment lists Mary K. Miller as a member of this group (CMS data updated 2026-10-02).
- Christiana Care Health Services Inc1,483 clinicians in the group
Specialties
- Clinical Psychologistprimary
Other clinical psychologists in Smyrna
Clinicians with the same Medicare primary specialty in Smyrna, DE — not a recommendation.
Clinician information
| Credential | PSY |
|---|---|
| Graduation year | 2018 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1255991998 |
| 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