Quick answers
- Which hospitals does Thomas L. Arnell work at?
- Medicare's official clinician data lists Thomas L. Arnell at 3 hospitals: Grossmont Hospital, Scripps Memorial Hospital La Jolla and Scripps Mercy Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Thomas L. Arnell see patients?
- Medicare's clinician data lists 3 practice locations, including La Jolla, CA, Chula Vista, CA and San Diego, CA. Call before your visit to confirm the address.
- What is Thomas L. Arnell's specialty?
- Medicare lists Otolaryngology as the primary specialty.
- Does Thomas L. Arnell accept Medicare assignment?
- Yes. Medicare's clinician data says Thomas L. Arnell 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 Thomas L. Arnell offer telehealth?
- Medicare's clinician data says Thomas L. Arnell offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Thomas L. Arnell?
- (858) 926-7010, as listed in official Medicare / NPI Registry data.
- What is Thomas L. Arnell's NPI number?
- 1649807397. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Thomas L. Arnell works
Medicare's Facility Affiliation Data lists Thomas L. Arnell 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
- Scripps Memorial Hospital La JollaLa Jolla, CA · Acute Care Hospital · CCN 050324
- Scripps Mercy HospitalSan Diego, CA · Acute Care Hospital · CCN 050077
Practice locations
Addresses where Thomas L. Arnell is enrolled with Medicare (CMS data updated 2026-10-02).
- 4150 Regents Park Row, Suite 345La Jolla, CA 92037 (858) 926‑7010
- 751 Med Ctr CtChula Vista, CA 91911 (858) 759‑4765
- 7901 Frost StSan Diego, CA 92123 (858) 758‑4765
Group practices
Medicare enrollment lists Thomas L. Arnell as a member of these groups (CMS data updated 2026-10-02).
- Marsha Reuther MD Inc6 clinicians in the group
- Ea Health Physicians Medical Group Inc4 clinicians in the group
Specialties
- Otolaryngologyprimary
Other ENT doctors in La Jolla
Clinicians with the same Medicare primary specialty in La Jolla, CA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Vermont College Of Medicine |
| Graduation year | 2020 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1649807397 |
| 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