NPPES file of Aug 9, 2026

Mark Slonim, M.D.

Surgery of the Hand (Surgery) Physician · La Jolla, CA

Mark Slonim, M.D. is a surgery of the hand (surgery) physician with a practice address in La Jolla, California, and NPI 1730410747, issued on Jan 15, 2010. Check the license (California G19659, as entered in NPPES) on the Medical Board of California; the federal record below is the public data PlainDoctor holds for this provider.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1730410747
Name
Mark Slonim
Credential
M.D.
Primary taxonomy
Surgery of the Hand (Surgery) Physician 2086S0105X
License number
G19659 CA
Self-reported in NPPES; status is on the state search
Practice location
5610 Caminito Genio, La Jolla, CA 92037
Phone
(858) 551-2020
Enumerated
Jan 15, 2010
Record last updated
Jan 15, 2010 (not updated in 16 years: call before relying on the address or phone)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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8 nearest surgery of the hand (surgery) physician records → All 39 in California → Look up another NPI →

Verify Mark Slonim in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license G19659    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the California license search

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Mark Slonim among 39 surgery of the hand (surgery) physician records in California

Mark Slonim, M.D. is one of 39 surgery of the hand (surgery) physician records with a practice address in California. 77% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2010, is newer than 74% of them.

  • NPI issued2010 · 74% of these records are older, 15% newer
  • In a Medicare fileNo · 77% of these records are
  • In the CMS Doctors and Clinicians fileNo · 74% of these records are
  • Record last updated2010 · 69% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2086S0105X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Surgery of the Hand (Surgery) Physician providers in California

There are 39 surgery of the hand (surgery) physician records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 39 in California → Every provider in La Jolla → Surgery of the Hand (Surgery) Physician nationwide →

The 8 surgery of the hand (surgery) physician records with the nearest ZIP codes

  1. Grant Seiden, MDOceanside, CA 920561992025407
  2. Anisa Yalom, MDSan Marcos, CA 920691164679908
  3. Julie Gilbert, M.D.San Diego, CA 921231659378990
  4. Gregory Mack, M.D.San Diego, CA 921231528169513
  5. David Subin, M.D.San Diego, CA 921231770694622
  6. Walter Chang, MDFontana, CA 923351083781835
  7. Sharon Kalina, MDFontana, CA 923351053488908
  8. Ravi Kiran, MDFontana, CA 923351952459984

Common questions

What is Mark Slonim, M.D.'s NPI number?

Mark Slonim, M.D.'s National Provider Identifier (NPI) is 1730410747, issued on Jan 15, 2010. An NPI identifies a provider in billing; it is not a license.

Where is Mark Slonim, M.D. located?

The NPPES record lists a practice address at 5610 Caminito Genio, La Jolla, CA, 92037. Phone: (858) 551-2020. Providers update this record themselves, so call before visiting.

How can I verify Mark Slonim, M.D.'s license?

NPPES lists California license number G19659, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.