Mark Esguerra
NPI 1477296879 · Internal Medicine Physician · La Jolla, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mark Esguerra is a Internal Medicine Physician provider in La Jolla, CA (NPI 1477296879).
Provider details
- NPI number
- 1477296879
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Sex
- Male
- Sole proprietor
- No
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
4 yrs in NPPES registry
- Profile completeness38% of score
83% of core fields populated
- Practice footprint23% of score
2 documented practice locations
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
Additional practice locations (1)
- 9898 Genesee AveLa Jolla, CA 92037-1205Phone: (858) 554-7272
Registry dates
- Enumerated
- 2022-04-14
- Last updated
- 2025-07-08
- Certified
- 2025-07-08
Frequently asked questions
- What is Mark Esguerra's NPI number?
- Mark Esguerra's National Provider Identifier (NPI) is 1477296879, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Esguerra's specialty?
- Mark Esguerra is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Mark Esguerra located?
- Mark Esguerra's practice location on file with NPPES is 10666 N Torrey Pines Rd, La Jolla, CA 92037-1027.
- What is Mark Esguerra's phone number?
- The practice phone number listed in the NPPES registry for Mark Esguerra is (858) 554-3200.
- Does Mark Esguerra accept Medicare?
- Mark Esguerra is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mark Esguerra's NPI active?
- Yes — Mark Esguerra's NPI (1477296879) is active in the NPPES registry as of the last update on 2025-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.