Omar Khayyat, MD
Internal Medicine Physician · Chula Vista, CA
Omar Khayyat, MD is an internal medicine physician with a practice address in Chula Vista, California, and NPI 1649711862, issued on Mar 20, 2017. Check the license (California A163653, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Omar Khayyat
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- A163653 CA
Self-reported in NPPES; status is on the state search - Practice location
- 435 H St, Chula Vista, CA 91910
- Phone
- (619) 691-7000
- Enumerated
- Mar 20, 2017
- Record last updated
- Jun 20, 2020 (not updated in 6 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20200901003202); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Also registered at 435 H St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Omar Khayyat in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A163653Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
35% more Medicare Part D claims than the average internal medicine physician in 2024
4,288 Medicare Part D claims for 281 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 15% of claims. 20 claims were for opioids.
Most prescribed
- Atorvastatin Calcium311 claims
- Amlodipine Besylate276 claims
- Metformin Hcl194 claims
- Losartan Potassium178 claims
- Pantoprazole Sodium148 claims
- Gabapentin129 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: $507.35
19 payments; by number, the most common kind was food and beverage; the largest payer was Lilly USA, LLC. 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 3 group practices
- East Campus Hospitalist Medical Group IncSan Diego, CA
- Health Ave Clinic IncEl Cajon, CA
- Scripps Health Inpatient Providers Medical Group IncChula Vista, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Omar Khayyat among 17,696 internal medicine physician records in California
Omar Khayyat, MD 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 2017, is newer than 81% of them.
- NPI issued2017 · 81% of these records are older, 16% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated2006 · median 2004 among the 11,065 with a school on file
- Record last updated2020 · 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).
81 internal medicine physician records list a practice address in Chula Vista
They are 81 of the 5,329 NPPES records with a practice address in Chula Vista, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in Chula Vista → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Andres BustamanteChula Vista, CA 919101720199227
- Michael Chambers, M.D.Chula Vista, CA 919101740298843
- Rocio Flores, MDChula Vista, CA 919101881607067
- Hector Heredia-Martinez, M.D.Chula Vista, CA 919101699882365
- Alejandro Hinojosa-Valencia, MDChula Vista, CA 919101083701411
- Tom-Oliver Klein, MDChula Vista, CA 919101235161787
- Perry Montoya, M.DChula Vista, CA 919101003826256
- Taikeun Park, MDChula Vista, CA 919101831175918
Common questions
What is Omar Khayyat, MD's NPI number?
Omar Khayyat, MD's National Provider Identifier (NPI) is 1649711862, issued on Mar 20, 2017. An NPI identifies a provider in billing; it is not a license.
Where is Omar Khayyat, MD located?
The NPPES record lists a practice address at 435 H St, Chula Vista, CA, 91910. Phone: (619) 691-7000. Providers update this record themselves, so call before visiting.
How can I verify Omar Khayyat, MD's license?
NPPES lists California license number A163653, 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 Omar Khayyat, MD prescribe under Medicare Part D?
In 2024, Omar Khayyat, MD had 4,288 Medicare Part D claims for 281 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.