NPPES file of Aug 9, 2026

David N. Varon, M.D.

Gastroenterology Physician · Concord, CA

David N. Varon, M.D. is a gastroenterology physician with a practice address in Concord, California, and NPI 1184702656, issued on Nov 1, 2006. Check the license (California 00A259490, 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 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1184702656
Name
David N. Varon
Credential
M.D.
Primary taxonomy
Gastroenterology Physician 207RG0100X
License number
00A259490 CA
Self-reported in NPPES; status is on the state search
Practice location
2485 High School Ave, Concord, CA 94520
Phone
(925) 676-6622
Enumerated
Nov 1, 2006
Record last updated
Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
Fax
(925) 676-6725
Medicare enrollment
Enrolled (PECOS I20031119000348); accepts Medicare assignment
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 2485 High School Ave

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

  1. John Ambrosino, D.P.M.Foot & Ankle Surgery Podiatrist1659462273
  2. Agustin Argenal, M.D.Interventional Cardiology Physician1629045372
  3. Margaret Clarson, CRNACertified Registered Nurse Anesthetist1366531410
  4. Charles Diraimondo, M.D.Specialist1962437269
  5. Amarjit Dosanjh, M.D.Plastic Surgery Physician1194857615
  6. Detlef Ehling, M.D.Family Medicine Physician1154331155

Verify David N. Varon in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license 00A259490
    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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38% fewer Medicare Part D claims than the average gastroenterology physician in 2024

505 Medicare Part D claims for 179 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. Brand-name drugs were 26% of claims.

  1. David Varon505
  2. Specialty average811

Most prescribed

  1. Pantoprazole Sodium122 claims
  2. Omeprazole51 claims
  3. Sutab49 claims
  4. Famotidine37 claims
  5. Sucralfate34 claims
  6. Zenpep31 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): 13 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.

  1. Qualityout of 100 · 30% of the final score0.0
  2. Costout of 100 · 30%43.4
  3. Promoting interoperabilitynot scored (reweighted)
  4. Improvement activities0 of 40 points · 15%0.0

Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $159.44

3 payments; by number, the most common kind was food and beverage; the largest payer was Aimmune Therapeutics, 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.

  1. David Varon$159.44
  2. Specialty average$5,015.95

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

David N. Varon among 2,140 gastroenterology physician records in California

David N. Varon, M.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 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
  • Graduated1970 · median 2002 among the 1,538 with a school on file
  • Record last updated2007 · 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. Alex Aslan, M.D.Concord, CA 945201538115571
  2. Kalyani Maganti, M.D.Concord, CA 945201073533212
  3. Richard Messian, M.D.Concord, CA 945201609929751
  4. Tedmond Szeto, MDConcord, CA 945201508061631
  5. Salim Shelby, M.D.Danville, CA 945261215948161
  6. Ramakrishna Gollapudi, M.D.Brentwood, CA 945131891880159
  7. Simon Chan, M.D.Antioch, CA 945311497762082
  8. Jenny Jew, M.D.Antioch, CA 945091356504476

Common questions

What is David N. Varon, M.D.'s NPI number?

David N. Varon, M.D.'s National Provider Identifier (NPI) is 1184702656, issued on Nov 1, 2006. An NPI identifies a provider in billing; it is not a license.

Where is David N. Varon, M.D. located?

The NPPES record lists a practice address at 2485 High School Ave, Concord, CA, 94520. Phone: (925) 676-6622. Providers update this record themselves, so call before visiting.

How can I verify David N. Varon, M.D.'s license?

NPPES lists California license number 00A259490, 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 N. Varon, M.D. prescribe under Medicare Part D?

In 2024, David N. Varon, M.D. had 505 Medicare Part D claims for 179 beneficiaries; the average among gastroenterology physician prescribers was 811. Part D covers Medicare prescriptions only.

What is David N. Varon, M.D.'s MIPS final score?

The 2023 MIPS final score is 13 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.