Farhan Ayoub, MD
Internal Medicine Physician · Irvine, CA
Farhan Ayoub, MD is an internal medicine physician with a practice address in Irvine, California, and NPI 1699295501, issued on Jun 21, 2017. Check the license (California C197597, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Farhan Ayoub
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License numbers
- C197597 CA
25MA10749500 NJ
Self-reported in NPPES; status is on the state search - Practice location
- 16300 Sand Canyon Ave Ste 311, Irvine, CA 92618
- Phone
- (949) 791-3101
- Enumerated
- Jun 21, 2017
- Record last updated
- May 29, 2026
- Fax
- (949) 791-3112
- Medicare enrollment
- Enrolled (PECOS I20241023002233); 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 16300 Sand Canyon Ave Ste 311
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Savitha Bharadwaj, M.D.Internal Medicine Physician1760470926
- Amy Fung, MDFamily Medicine Physician1427548023
- Kristy Huffman, FNP-CFamily Nurse Practitioner1659295137
- Anna Jurovich, MSN FNPFamily Nurse Practitioner1992692966
- John Kao, MDInternal Medicine Physician1568780468
- Arezou Nazary, MDInternal Medicine Physician1063033298
Verify Farhan Ayoub in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license C197597Check 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% fewer Medicare Part D claims than the average internal medicine physician in 2024
2,078 Medicare Part D claims for 198 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims.
Most prescribed
- Atorvastatin Calcium154 claims
- Levothyroxine Sodium87 claims
- Metoprolol Succinate81 claims
- Rosuvastatin Calcium69 claims
- Amlodipine Besylate63 claims
- Metformin Hcl61 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: $145.20
8 payments; by number, the most common kind was food and beverage; the largest payer was Inspire Medical Systems, Inc. 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
- Hoag ClinicIrvine, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Farhan Ayoub among 17,696 internal medicine physician records in California
Farhan Ayoub, 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
- Graduated1996 · median 2004 among the 11,065 with a school on file
- Record last updated2026 · 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).
155 internal medicine physician records list a practice address in Irvine
They are 155 of the 7,778 NPPES records with a practice address in Irvine, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in Irvine → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Savitha Bharadwaj, M.D.Irvine, CA 926181760470926
- Juan Cabrera, M.D.Irvine, CA 926181447254792
- William Chen, M.D.Irvine, CA 926181881659142
- Subrato Ghosh, MDIrvine, CA 926181083607055
- Kambiz Karimi, M.D.Irvine, CA 926181184688475
- Sara Kim, M.D.Irvine, CA 926181912944166
- Brian Lo, MDIrvine, CA 926181073501565
- Emad Mikhail, MDIrvine, CA 926181376582957
Common questions
What is Farhan Ayoub, MD's NPI number?
Farhan Ayoub, MD's National Provider Identifier (NPI) is 1699295501, issued on Jun 21, 2017. An NPI identifies a provider in billing; it is not a license.
Where is Farhan Ayoub, MD located?
The NPPES record lists a practice address at 16300 Sand Canyon Ave Ste 311, Irvine, CA, 92618. Phone: (949) 791-3101. Providers update this record themselves, so call before visiting.
How can I verify Farhan Ayoub, MD's license?
NPPES lists California license number C197597, 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 Farhan Ayoub, MD prescribe under Medicare Part D?
In 2024, Farhan Ayoub, MD had 2,078 Medicare Part D claims for 198 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.