Gregg J. Silverman, M.D.
Internal Medicine Physician · La Jolla, CA
Gregg J. Silverman, M.D. is an internal medicine physician with a practice address in La Jolla, California, and NPI 1952327009, issued on Jul 14, 2006. Check the license (California G49612, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Gregg J. Silverman
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- G49612 CA
Self-reported in NPPES; status is on the state search - Practice location
- 9500 Gilman Dr, La Jolla, CA 92093
- Phone
- (858) 534-5439
- Enumerated
- Jul 14, 2006
- Record last updated
- Sep 11, 2025
- Fax
- (858) 822-5230
- Medicaid ID
- 00G496120 CA
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Also registered at 9500 Gilman Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Ginger Armas, PHDCounselor1396125035
Verify Gregg J. Silverman in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G49612Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Industry payments in 2024: $788.78
6 payments; by number, the most common kind was food and beverage; the largest payer was Biogen, Inc. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Gregg J. Silverman among 17,696 internal medicine physician records in California
Gregg J. Silverman, M.D. is one of 17,696 internal medicine physician records with a practice address in California. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 5% of them.
- NPI issued2006 · 5% of these records are older, 56% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileNo · 63% of these records are
- Record last updated2025 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
158 internal medicine physician records list a practice address in La Jolla
They are 158 of the 3,648 NPPES records with a practice address in La Jolla, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in La Jolla → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Sandip Datta, M.D.La Jolla, CA 920931275566648
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- Thomas Kipps, M.D.La Jolla, CA 920931306861950
- Usha Kumar, M.D.La Jolla, CA 920931811263833
- Rohit Loomba, MDLa Jolla, CA 920931578593521
- Sanjay Mehta, M.D.La Jolla, CA 920931437150299
- Robert Parmer, M.D.La Jolla, CA 920931013932318
Common questions
What is Gregg J. Silverman, M.D.'s NPI number?
Gregg J. Silverman, M.D.'s National Provider Identifier (NPI) is 1952327009, issued on Jul 14, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Gregg J. Silverman, M.D. located?
The NPPES record lists a practice address at 9500 Gilman Dr, La Jolla, CA, 92093. Phone: (858) 534-5439. Providers update this record themselves, so call before visiting.
How can I verify Gregg J. Silverman, M.D.'s license?
NPPES lists California license number G49612, 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. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
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.