David Jacob Kaufman, D.O.
Gastroenterology Physician · Irvine, CA
David Jacob Kaufman, D.O. is a gastroenterology physician with a practice address in Irvine, California, and NPI 1508893363, issued on Jun 27, 2006. Check the license (California 20A8799, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- David Jacob Kaufman
- Credential
- D.O.
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License number
- 20A8799 CA
Self-reported in NPPES; status is on the state search - Practice location
- 18 Endeavor, Irvine, CA 92618
- Phone
- (949) 727-2035
- Enumerated
- Jun 27, 2006
- Record last updated
- Jan 28, 2009 (not updated in 17 years: call before relying on the address or phone)
- Fax
- (949) 727-2141
- Medicare enrollment
- Enrolled (PECOS I20040601000949); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest gastroenterology physician records → All 2,140 in California → Look up another NPI →
Also registered at 18 Endeavor
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify David Jacob Kaufman in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 20A8799Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.4 times the Medicare Part D claims of the average gastroenterology physician in 2024
1,959 Medicare Part D claims for 491 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. Brand-name drugs were 8% of claims.
Most prescribed
- Famotidine408 claims
- Pantoprazole Sodium377 claims
- Omeprazole206 claims
- Dicyclomine Hcl79 claims
- Diphenoxylate-Atropine52 claims
- Ondansetron Odt50 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.
The MIPS final score for 2023 (Medicare payment program): 67.6 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $1,000.39
53 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 13,350 providers of this specialty with any payment received $5,015.95 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.
Bills Medicare through one group practice
- Pacific Coast Gastroenterology, IncIrvine, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
David Jacob Kaufman among 2,140 gastroenterology physician records in California
David Jacob Kaufman, D.O. 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 2006, is newer than 7% of them.
- NPI issued2006 · 7% of these records are older, 48% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 72% of these records are
- Graduated1998 · median 2002 among the 1,538 with a school on file
- Record last updated2009 · 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.
All 2,140 in California → Every provider in Irvine → Gastroenterology Physician nationwide →
The 8 gastroenterology physician records with the nearest ZIP codes
- Ardalan Babaknia, MDIrvine, CA 926181366527491
- Shahrooz BemanianIrvine, CA 926181629123070
- You-Jen Chou, MDIrvine, CA 926181104070887
- Lino Deguzman, M.D.Irvine, CA 926181346324720
- John Hoefs, MDIrvine, CA 926181154425742
- Herbert Lee, MDIrvine, CA 926181740206689
- Paul Lee, MDIrvine, CA 926181760531693
- Hooshang Meshkinpour, M.D.Irvine, CA 926181053386243
Common questions
What is David Jacob Kaufman, D.O.'s NPI number?
David Jacob Kaufman, D.O.'s National Provider Identifier (NPI) is 1508893363, issued on Jun 27, 2006. An NPI identifies a provider in billing; it is not a license.
Where is David Jacob Kaufman, D.O. located?
The NPPES record lists a practice address at 18 Endeavor, Irvine, CA, 92618. Phone: (949) 727-2035. Providers update this record themselves, so call before visiting.
How can I verify David Jacob Kaufman, D.O.'s license?
NPPES lists California license number 20A8799, 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 David Jacob Kaufman, D.O. prescribe under Medicare Part D?
In 2024, David Jacob Kaufman, D.O. had 1,959 Medicare Part D claims for 491 beneficiaries; the average among gastroenterology physician prescribers was 811. Part D covers Medicare prescriptions only.
What is David Jacob Kaufman, D.O.'s MIPS final score?
The 2023 MIPS final score is 67.6 of 100. The average among 454,083 clinicians with a measured score was 83.5.
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.