Zeid K. Kayali, M.D.
Internal Medicine Physician · Rialto, CA
Zeid K. Kayali, M.D. is an internal medicine physician with a practice address in Rialto, California, and NPI 1396777538, issued on Jul 7, 2006. Check the license (California A71164, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Zeid K. Kayali
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- A71164 CA
Self-reported in NPPES; status is on the state search - Practice location
- 2006 N Riverside Ave Ste A, Rialto, CA 92377
- Phone
- (909) 883-2999
- Enumerated
- Jul 7, 2006
- Record last updated
- May 16, 2023
- Fax
- (909) 883-2997
- Medicaid ID
- 00A711640 CA
- Medicare enrollment
- Enrolled (PECOS I20090318000493); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Verify Zeid K. Kayali in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A71164Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
30% fewer Medicare Part D claims than the average internal medicine physician in 2024
2,220 Medicare Part D claims for 438 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 24% of claims.
Most prescribed
- Pantoprazole Sodium250 claims
- Furosemide206 claims
- Spironolactone195 claims
- Ursodiol147 claims
- Vemlidy125 claims
- Xifaxan114 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: $21,214.04
120 payments; by number, the most common kind was food and beverage; the largest payer was Madrigal Pharmaceuticals. The 50,334 providers of this specialty with any payment received $1,303.06 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
- Digestive Associates LLPN Las Vegas, NV
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Zeid K. Kayali among 17,696 internal medicine physician records in California
Zeid K. Kayali, M.D. is one of 17,696 internal medicine physician records with a practice address in California. 79% 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 5% of them.
- NPI issued2006 · 5% of these records are older, 56% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated1995 · median 2004 among the 11,065 with a school on file
- Record last updated2023 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
12 internal medicine physician records list a practice address in Rialto
They are 12 of the 1,044 NPPES records with a practice address in Rialto, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in Rialto → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Mehrdad Ghahremani-Ghajar, D.O.Rialto, CA 923771942510607
- Natasha Alexander, MDRialto, CA 923761255615530
- Paul Chen, M.D.Rialto, CA 923761588689350
- Hedyeh Golshan, M.D.Rialto, CA 923761174582688
- Ikechi Obiocha, MDRialto, CA 923761467479295
- Charles Sabbah, M.D.Rialto, CA 923761467491118
- Yousuf Sadiq, MDRialto, CA 923761417067588
- Ravindranath Shahane, M.D.Rialto, CA 923761457420903
Common questions
What is Zeid K. Kayali, M.D.'s NPI number?
Zeid K. Kayali, M.D.'s National Provider Identifier (NPI) is 1396777538, issued on Jul 7, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Zeid K. Kayali, M.D. located?
The NPPES record lists a practice address at 2006 N Riverside Ave Ste A, Rialto, CA, 92377. Phone: (909) 883-2999. Providers update this record themselves, so call before visiting.
How can I verify Zeid K. Kayali, M.D.'s license?
NPPES lists California license number A71164, 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 Zeid K. Kayali, M.D. prescribe under Medicare Part D?
In 2024, Zeid K. Kayali, M.D. had 2,220 Medicare Part D claims for 438 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.