Quick answers
- Which hospitals does Jennifer E. Castillo work at?
- Medicare's official clinician data lists Jennifer E. Castillo at 5 hospitals: Chelsea Hospital, St Joe Mercy Hospital System Livonia, Trinity Health Ann Arbor Hospital, Trinity Health Livingston Hospital and University of Michigan Health System. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Jennifer E. Castillo see patients?
- Medicare's clinician data lists 1 practice location in Ann Arbor, MI. Call before your visit to confirm the address.
- What is Jennifer E. Castillo's specialty?
- Medicare lists Internal Medicine as the primary specialty.
- Does Jennifer E. Castillo accept Medicare assignment?
- Yes. Medicare's clinician data says Jennifer E. Castillo 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 Jennifer E. Castillo offer telehealth?
- Medicare's clinician data says Jennifer E. Castillo offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Jennifer E. Castillo?
- (734) 930-4020, as listed in official Medicare / NPI Registry data.
- What is Jennifer E. Castillo's NPI number?
- 1902995863. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Jennifer E. Castillo works
Medicare's Facility Affiliation Data lists Jennifer E. Castillo at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Chelsea HospitalChelsea, MI · Acute Care Hospital · CCN 230259
- St Joe Mercy Hospital System LivoniaLivonia, MI · Acute Care Hospital · CCN 230002
- Trinity Health Ann Arbor HospitalAnn Arbor, MI · Acute Care Hospital · CCN 230156
- Trinity Health Livingston HospitalBrighton, MI · Acute Care Hospital · CCN 230069
- University of Michigan Health SystemAnn Arbor, MI · Acute Care Hospital · CCN 230046
Practice locations
Addresses where Jennifer E. Castillo is enrolled with Medicare (CMS data updated 2026-10-02).
- 24 Frank Lloyd Wright DrAnn Arbor, MI 48105 (734) 930‑4020
Group practices
Medicare enrollment lists Jennifer E. Castillo as a member of this group (CMS data updated 2026-10-02).
- Emmaus Health Partners11 clinicians in the group
Specialties
- Internal Medicineprimary
Other internal medicine doctors in Ann Arbor
Clinicians with the same Medicare primary specialty in Ann Arbor, MI — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Pittsburgh School Of Medicine |
| Graduation year | 2002 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1902995863 |
| 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