Keith A. Leibowitz, MD
Gastroenterology Physician · Modesto, CA
Keith A. Leibowitz, MD is a gastroenterology physician with a practice address in Modesto, California, and NPI 1083689335, issued on Feb 21, 2006. Check the license (California G129017, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Keith A. Leibowitz
- Credential
- MD
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License numbers
- G129017 CA
0101239026 VA
Self-reported in NPPES; status is on the state search - Practice location
- 700 17TH St Ste 102, Modesto, CA 95354
- Phone
- (209) 522-6100
- Enumerated
- Feb 21, 2006
- Record last updated
- May 31, 2022
- Fax
- (209) 522-6110
- Medicaid ID
- 010251338 VA
- Medicare enrollment
- Enrolled (PECOS I20151123001316); accepts Medicare assignment
- Medical or professional school
- New York Medical College, 1985
- Entity
- Type 1 · individual
8 nearest gastroenterology physician records → All 2,140 in California → Look up another NPI →
Also registered at 700 17TH St Ste 102
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Manjit Dhillon, MDInfectious Disease Physician1487602819
Verify Keith A. Leibowitz in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G129017Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
81% fewer Medicare Part D claims than the average gastroenterology physician in 2024
154 Medicare Part D claims for 57 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims.
Most prescribed
- Famotidine43 claims
- Pantoprazole Sodium33 claims
- Mesalamine11 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.
Keith A. Leibowitz among 2,140 gastroenterology physician records in California
Keith A. Leibowitz, MD 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
- Graduated1985 · median 2002 among the 1,538 with a school on file
- Record last updated2022 · 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 Modesto → Gastroenterology Physician nationwide →
The 8 gastroenterology physician records with the nearest ZIP codes
- Safwat Absood, M.D.Modesto, CA 953551932113891
- Pardeep Brar, MD,Modesto, CA 953551538153713
- Jamie Byun, MDModesto, CA 953551306341953
- Vida ChenModesto, CA 953551922480789
- Richard Fisher, MDModesto, CA 953551295785798
- Ambrish Ghumman, M.D.Modesto, CA 953551093019929
- Raman Khehra, MDModesto, CA 953551548425382
- Navim Mobin, MDModesto, CA 953551134625304
Common questions
What is Keith A. Leibowitz, MD's NPI number?
Keith A. Leibowitz, MD's National Provider Identifier (NPI) is 1083689335, issued on Feb 21, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Keith A. Leibowitz, MD located?
The NPPES record lists a practice address at 700 17TH St Ste 102, Modesto, CA, 95354. Phone: (209) 522-6100. Providers update this record themselves, so call before visiting.
How can I verify Keith A. Leibowitz, MD's license?
NPPES lists California license number G129017, 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 Keith A. Leibowitz, MD prescribe under Medicare Part D?
In 2024, Keith A. Leibowitz, MD had 154 Medicare Part D claims for 57 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.