Mark Leland Kadden, M.D.
Gastroenterology Physician · Escondido, CA
Mark Leland Kadden, M.D. is a gastroenterology physician with a practice address in Escondido, California, and NPI 1093784597, issued on Mar 16, 2006. Check the license (California G57198, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Mark Leland Kadden
- Credential
- M.D.
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License number
- G57198 CA
Self-reported in NPPES; status is on the state search - Practice location
- 225 E 2ND Ave, Escondido, CA 92025
- Phone
- (760) 489-0908
- Enumerated
- Mar 16, 2006
- Record last updated
- Feb 16, 2024
- Fax
- (760) 489-0962
- Medicaid ID
- 00G571980 CA
- Entity
- Type 1 · individual
8 nearest gastroenterology physician records → All 2,140 in California → Look up another NPI →
Also registered at 225 E 2ND Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Mark Leland Kadden in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G57198Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
57% fewer Medicare Part D claims than the average gastroenterology physician in 2024
351 Medicare Part D claims for 143 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. Brand-name drugs were 16% of claims.
Most prescribed
- Omeprazole71 claims
- Pantoprazole Sodium66 claims
- Dicyclomine Hcl24 claims
- Gavilyte-G20 claims
- Sod Sulf-Potass Sulf-Mag Sulf16 claims
- Sucralfate15 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.
Industry payments in 2024: $155.38
7 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.
Mark Leland Kadden among 2,140 gastroenterology physician records in California
Mark Leland Kadden, 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 fileNo · 72% of these records are
- Record last updated2024 · 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 Escondido → Gastroenterology Physician nationwide →
The 8 gastroenterology physician records with the nearest ZIP codes
- Haritha Chelimilla, M.D.Escondido, CA 920251528235892
- Mohammad Arbabi, MDEncinitas, CA 920241609821040
- Steven Dilauro, MDEncinitas, CA 920241629117643
- Ali Fakhreddine, M.D.Encinitas, CA 920241336586908
- Robert Goldklang, M.D.Encinitas, CA 920241275527657
- Gordon Kim, M.D.Encinitas, CA 920241013012046
- Piyush Kumar, MDEncinitas, CA 920241144305566
- Adrianne Lajoie, M.D.Encinitas, CA 920241225253651
Common questions
What is Mark Leland Kadden, M.D.'s NPI number?
Mark Leland Kadden, M.D.'s National Provider Identifier (NPI) is 1093784597, issued on Mar 16, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Mark Leland Kadden, M.D. located?
The NPPES record lists a practice address at 225 E 2ND Ave, Escondido, CA, 92025. Phone: (760) 489-0908. Providers update this record themselves, so call before visiting.
How can I verify Mark Leland Kadden, M.D.'s license?
NPPES lists California license number G57198, 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 Mark Leland Kadden, M.D. prescribe under Medicare Part D?
In 2024, Mark Leland Kadden, M.D. had 351 Medicare Part D claims for 143 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.