NPPES file of Aug 9, 2026

Jacques Van Dam, M.D., PH.D.

Gastroenterology Physician · Los Angeles, CA

Jacques Van Dam, M.D., PH.D. is a gastroenterology physician with a practice address in Los Angeles, California, and NPI 1518001791, issued on Feb 19, 2007. Check the license (California 50435, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1518001791
Name
Jacques Van Dam
Credential
M.D., PH.D.
Primary taxonomy
Gastroenterology Physician 207RG0100X
License number
50435 CA
Self-reported in NPPES; status is on the state search
Practice location
1520 San Pablo St, Los Angeles, CA 90033
Phone
(323) 442-5100
Enumerated
Feb 19, 2007
Record last updated
Dec 14, 2020 (not updated in 6 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20080725000631); accepts Medicare assignment
Medical or professional school
Georgetown University School Of Medicine, 1984
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 1520 San Pablo St

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Frank Acosta, PHDPsychologist1750313490
  2. Gbemisola Adenuga, M.D.Nephrology Physician1952464661
  3. Aimee Aguillon, OTR/L, CHTOccupational Therapist1972677318
  4. Haig Aharonian, M.D.Internal Medicine Physician1205107653
  5. Jamshid Ahmadi, M.D.Neuroradiology Physician1942252028
  6. Mohammad Akmal, M.D.Nephrology Physician1356378087

Verify Jacques Van Dam in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license 50435
    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

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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96% fewer Medicare Part D claims than the average gastroenterology physician in 2024

33 Medicare Part D claims for 20 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D.

  1. Jacques Van Dam33
  2. Specialty average811

Most prescribed

  1. Levofloxacin17 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Bills Medicare through 2 group practices

  1. City OF Hope Medical FoundationIrvine, CA
  2. Usc Care Medical Group IncLos Angeles, CA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Jacques Van Dam among 2,140 gastroenterology physician records in California

Jacques Van Dam, M.D., PH.D. is one of 2,140 gastroenterology physician records with a practice address in California. 83% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 52% of them.

  • NPI issued2007 · 52% of these records are older, 37% newer
  • In a Medicare fileYes · 83% of these records are
  • In the CMS Doctors and Clinicians fileYes · 72% of these records are
  • Graduated1984 · median 2002 among the 1,538 with a school on file
  • Record last updated2020 · 60% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RG0100X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Gastroenterology Physician providers in California

There are 2,140 gastroenterology physician records in California.

The 8 gastroenterology physician records with the nearest ZIP codes

  1. Ethelred Carter, M.D.Los Angeles, CA 900331336247964
  2. Laurie Deleve, M.D.Los Angeles, CA 900331407882947
  3. Andrew Ippoliti, M.D.Los Angeles, CA 900331881621308
  4. Rome Jutabha, M.D.Los Angeles, CA 900331790785434
  5. John Kim, M.D.Los Angeles, CA 900331467676460
  6. Michael Kline, M.D.Los Angeles, CA 900331720017338
  7. Karen Lindsay, M.D.Los Angeles, CA 900331295765857
  8. Shelly Lu, M.D.Los Angeles, CA 900331386673606

Common questions

What is Jacques Van Dam, M.D., PH.D.'s NPI number?

Jacques Van Dam, M.D., PH.D.'s National Provider Identifier (NPI) is 1518001791, issued on Feb 19, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Jacques Van Dam, M.D., PH.D. located?

The NPPES record lists a practice address at 1520 San Pablo St, Los Angeles, CA, 90033. Phone: (323) 442-5100. Providers update this record themselves, so call before visiting.

How can I verify Jacques Van Dam, M.D., PH.D.'s license?

NPPES lists California license number 50435, 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.

How much does Jacques Van Dam, M.D., PH.D. prescribe under Medicare Part D?

In 2024, Jacques Van Dam, M.D., PH.D. had 33 Medicare Part D claims for 20 beneficiaries; the average among gastroenterology physician prescribers was 811. Part D covers Medicare prescriptions only.

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.