Quick answers
- Which hospitals does Daniel T. Leininger work at?
- Medicare's official clinician data lists Daniel T. Leininger at 3 hospitals: Grossmont Hospital, Sharp Memorial Hospital and UC San Diego Health Hillcrest - Hillcrest Med Ctr. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Daniel T. Leininger see patients?
- Medicare's clinician data lists 8 practice locations, including Fountain Valley, CA, Escondido, CA and Chula Vista, CA. Call before your visit to confirm the address.
- What is Daniel T. Leininger's specialty?
- Medicare lists Nephrology as the primary specialty.
- Does Daniel T. Leininger accept Medicare assignment?
- Yes. Medicare's clinician data says Daniel T. Leininger 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 Daniel T. Leininger offer telehealth?
- Medicare's clinician data says Daniel T. Leininger offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Daniel T. Leininger?
- (714) 641-9696, as listed in official Medicare / NPI Registry data.
- What is Daniel T. Leininger's NPI number?
- 1164956264. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Daniel T. Leininger works
Medicare's Facility Affiliation Data lists Daniel T. Leininger at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Grossmont HospitalLa Mesa, CA · Acute Care Hospital · CCN 050026
- Sharp Memorial HospitalSan Diego, CA · Acute Care Hospital · CCN 050100
- UC San Diego Health Hillcrest - Hillcrest Med CtrSan Diego, CA · Acute Care Hospital · CCN 050025
Practice locations
Addresses where Daniel T. Leininger is enrolled with Medicare (CMS data updated 2026-10-02). The first 5 of 8; the Medicare profile lists all.
- 11100 Warner Ave, Suite 218Fountain Valley, CA 92708 (714) 641‑9696
- 1955 Citracado Pkwy, Suite 301Escondido, CA 92029 (760) 294‑1660
- 416 BroadwayChula Vista, CA 91910 (619) 427‑1144
- 5525 Grossmont Ctr DrLa Mesa, CA 91942 (858) 499‑2600
- 5555 Grossmont Ctr DrLa Mesa, CA 91942 (619) 740‑6000
Group practices
Medicare enrollment lists Daniel T. Leininger as a member of these groups (CMS data updated 2026-10-02).
- Sharp Rees-Stealy Medical Group Inc884 clinicians in the group
- Emergency and Acute Care Medical Corporation422 clinicians in the group
- Balboa Nephrology Medical Group Inc76 clinicians in the group
Specialties
- Nephrologyprimary
Other nephrologists in Fountain Valley
Clinicians with the same Medicare primary specialty in Fountain Valley, CA — not a recommendation.
Clinician information
| Credential | DO |
|---|---|
| Graduation year | 2017 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1164956264 |
| 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