NPPES file of Aug 9, 2026

Kenneth A. Kelsen, MD

Gastroenterology Physician · Fremont, CA

Kenneth A. Kelsen, MD is a gastroenterology physician with a practice address in Fremont, California, and NPI 1538292321, issued on Mar 13, 2007. Check the license (California G250930, 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
1538292321
Name
Kenneth A. Kelsen
Credential
MD
Primary taxonomy
Gastroenterology Physician 207RG0100X
License number
G250930 CA
Self-reported in NPPES; status is on the state search
Practice location
734 Mowry Ave, Fremont, CA 94536
Phone
(510) 793-3033
Enumerated
Mar 13, 2007
Record last updated
Jun 1, 2018 (not updated in 8 years: call before relying on the address or phone)
Fax
(510) 793-4952
Medicaid ID
1455018 CA
Medicare enrollment
Enrolled (PECOS I20090331000368); accepts Medicare assignment
Medical or professional school
University Of Louisville School Of Medicine, 1970
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 734 Mowry Ave

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

  1. Karamjit Dhaliwal, FNPNurse Practitioner1427497700
  2. Shankar Ghimire, M.D.Family Medicine Physician1851693378
  3. Gurjoban Hayer, PHARMDPharmacist1275367997
  4. Rabin Khetrapal, MDInternal Medicine Physician1629180310
  5. Gurjeet Mahal, PA-CPhysician Assistant1194759704
  6. Sabiha Rasheed, MDRheumatology Physician1134161524

Verify Kenneth A. Kelsen in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license G250930
    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

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56% fewer Medicare Part D claims than the average gastroenterology physician in 2024

359 Medicare Part D claims for 46 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims.

  1. Kenneth Kelsen359
  2. Specialty average811

Most prescribed

  1. Levothyroxine Sodium23 claims
  2. Lisinopril23 claims
  3. Simvastatin23 claims
  4. Atenolol16 claims
  5. Amlodipine Besylate15 claims
  6. Metformin Hcl15 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: $1,135.48

28 payments; by number, the most common kind was food and beverage; the largest payer was Janssen Biotech, 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. Kenneth Kelsen$1,135.48
  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.

Gastroenterology Physician providers in California

There are 2,140 gastroenterology physician records in California.

Other gastroenterology physician records in California

  1. David Aarons, MDLodi, CA1619081379
  2. Constante Abaya, MDOxnard, CA1003918459
  3. Sadeea Abbasi, M.D., PH.D.Los Angeles, CA1366713513
  4. Basim Abdelkarim, MDUpland, CA1932217544
  5. Homan Abdollahzadeh, MDPalm Springs, CA1184634826
  6. John Abdulian, M.D.Fresno, CA1437114113
  7. Hussein Abidali, DORancho Cucamonga, CA1205274768
  8. Alaa Abousaif, MDOrange, CA1235124108
  9. Donald Abrahm, M.D.Newport Beach, CA1215022405
  10. Maria Abreu, M.D.West Hollywood, CA1598793374

Common questions

What is Kenneth A. Kelsen, MD's NPI number?

Kenneth A. Kelsen, MD's National Provider Identifier (NPI) is 1538292321, issued on Mar 13, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Kenneth A. Kelsen, MD located?

The NPPES record lists a practice address at 734 Mowry Ave, Fremont, CA, 94536. Phone: (510) 793-3033. Providers update this record themselves, so call before visiting.

How can I verify Kenneth A. Kelsen, MD's license?

NPPES lists California license number G250930, 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 Kenneth A. Kelsen, MD prescribe under Medicare Part D?

In 2024, Kenneth A. Kelsen, MD had 359 Medicare Part D claims for 46 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.