Mark Slonim, M.D.
NPI 1730410747 · Surgery of the Hand (Surgery) Physician · La Jolla, CA
Enrolled with Medicare as Order and Referring Only - Hand Surgery · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mark Slonim, M.D. is a Surgery of the Hand (Surgery) Physician provider in La Jolla, CA (NPI 1730410747).
Provider details
- NPI number
- 1730410747
- Entity type
- Individual
- Primary specialty
- Surgery of the Hand (Surgery) PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- G19659 (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
16 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
- 2010-01-15
- Last updated
- 2010-01-15
Frequently asked questions
- What is Mark Slonim's NPI number?
- Mark Slonim's National Provider Identifier (NPI) is 1730410747, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Slonim's specialty?
- Mark Slonim is listed in the NPPES registry with a primary specialty of Surgery of the Hand (Surgery) Physician (Allopathic & Osteopathic Physicians).
- Where is Mark Slonim located?
- Mark Slonim's practice location on file with NPPES is 5610 Caminito Genio, La Jolla, CA 92037-7167.
- What is Mark Slonim's phone number?
- The practice phone number listed in the NPPES registry for Mark Slonim is (858) 551-2020.
- Does Mark Slonim accept Medicare?
- Mark Slonim is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mark Slonim's NPI active?
- Yes — Mark Slonim's NPI (1730410747) is active in the NPPES registry as of the last update on 2010-01-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.