Thomas Arnell, MD
NPI 1649807397 · Otolaryngology Physician · La Jolla, CA
Enrolled with Medicare as Practitioner - Otolaryngology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Thomas Arnell, MD is a Otolaryngology Physician provider in La Jolla, CA (NPI 1649807397).
Provider details
- NPI number
- 1649807397
- Entity type
- Individual
- Primary specialty
- Otolaryngology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- A203257 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
6 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Registry dates
- Enumerated
- 2020-03-24
- Last updated
- 2025-07-30
- Certified
- 2025-07-30
Frequently asked questions
- What is Thomas Arnell's NPI number?
- Thomas Arnell's National Provider Identifier (NPI) is 1649807397, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Thomas Arnell's specialty?
- Thomas Arnell is listed in the NPPES registry with a primary specialty of Otolaryngology Physician (Allopathic & Osteopathic Physicians).
- Where is Thomas Arnell located?
- Thomas Arnell's practice location on file with NPPES is 4150 Regents Park Row Ste 345, La Jolla, CA 92037-9102.
- What is Thomas Arnell's phone number?
- The practice phone number listed in the NPPES registry for Thomas Arnell is (858) 926-7010.
- Does Thomas Arnell accept Medicare?
- Thomas Arnell is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Thomas Arnell's NPI active?
- Yes — Thomas Arnell's NPI (1649807397) is active in the NPPES registry as of the last update on 2025-07-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.