IndividualActive
Thomas O'Callaghan, MD
NPI 1699751321 · Surgery Physician · Loma Linda, CA
Thomas O'Callaghan, MD is a Surgery Physician provider in Loma Linda, CA (NPI 1699751321).
Provider details
- NPI number
- 1699751321
- Entity type
- Individual
- Primary specialty
- Surgery PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- C42550 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
Detailed profile(91/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
20 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
11370 Anderson St
Ste. 2100
Loma Linda, CA 92354-3450
Phone: (909) 558-2822
Street-level locationGet directions
Mailing address
File Number 54701
Los Angeles, CA 90074-0001
Registry dates
- Enumerated
- 2005-12-15
- Last updated
- 2007-10-04
Frequently asked questions
- What is Thomas O'Callaghan's NPI number?
- Thomas O'Callaghan's National Provider Identifier (NPI) is 1699751321, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Thomas O'Callaghan's specialty?
- Thomas O'Callaghan is listed in the NPPES registry with a primary specialty of Surgery Physician (Allopathic & Osteopathic Physicians).
- Where is Thomas O'Callaghan located?
- Thomas O'Callaghan's practice location on file with NPPES is 11370 Anderson St, Loma Linda, CA 92354-3450.
- What is Thomas O'Callaghan's phone number?
- The practice phone number listed in the NPPES registry for Thomas O'Callaghan is (909) 558-2822.
- Is Thomas O'Callaghan's NPI active?
- Yes — Thomas O'Callaghan's NPI (1699751321) is active in the NPPES registry as of the last update on 2007-10-04.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.