Ayad Hamdan, M.D.
Hematology & Oncology Physician · La Jolla, CA
Ayad Hamdan, M.D. is a hematology & oncology physician with a practice address in La Jolla, California, and NPI 1144431230, issued on May 24, 2007. Check the license (California C162882, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Ayad Hamdan
- Credential
- M.D.
- Primary taxonomy
- Hematology & Oncology Physician 207RH0003X
- License number
- C162882 CA
Self-reported in NPPES; status is on the state search - Practice location
- 3855 Health Sciences Dr # 960, La Jolla, CA 92093
- Phone
- (858) 822-6600
- Enumerated
- May 24, 2007
- Record last updated
- Nov 12, 2025
- Fax
- (858) 822-6844
- Medicare enrollment
- Enrolled (PECOS I20190906002196); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest hematology & oncology physician records → All 1,583 in California → Look up another NPI →
Verify Ayad Hamdan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license C162882Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
23% fewer Medicare Part D claims than the average hematology & oncology physician in 2024
679 Medicare Part D claims for 52 beneficiaries, against an average of 877 among the 10,784 providers of this specialty who prescribed in Part D. Brand-name drugs were 20% of claims. 50 claims were for opioids.
Most prescribed
- Acyclovir108 claims
- Oxycodone Hcl36 claims
- Jakafi35 claims
- Prednisone24 claims
- Eliquis23 claims
- Dexamethasone18 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.
2 hospitals and group practices
- Eisenhower Medical CenterRancho Mirage, CA · Acute Care Hospitals4 of 5 stars
- Regents OF The University OF CaliforniaSan Diego, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
Ayad Hamdan among 1,583 hematology & oncology physician records in California
Ayad Hamdan, M.D. is one of 1,583 hematology & oncology 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 2007, is newer than 46% of them.
- NPI issued2007 · 46% of these records are older, 40% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 71% of these records are
- Graduated2003 · median 2003 among the 1,124 with a school on file
- Record last updated2025 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RH0003X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
46 hematology & oncology physician records list a practice address in La Jolla
They are 46 of the 3,648 NPPES records with a practice address in La Jolla, and 1,583 hematology & oncology physician records in California.
All 1,583 in California → Every provider in La Jolla → Hematology & Oncology Physician nationwide →
The 8 hematology & oncology physician records with the nearest ZIP codes
- Rafael Bejar, M.D., PH.D.La Jolla, CA 920931720051493
- Sarah Boles, M.D.La Jolla, CA 920931245391242
- Imawati Budihardjo, M.D., PH.DLa Jolla, CA 920931043337173
- Srila Gopal, M.D.La Jolla, CA 920931831323369
- Teresa Helsten, M.D.La Jolla, CA 920931265408678
- Akram Mesleh Shayeb, M.D.La Jolla, CA 920931861784993
- Aaron Miller, M.D., PH.D.La Jolla, CA 920931104127679
- Barbara Parker, M.D.La Jolla, CA 920931629093927
Common questions
What is Ayad Hamdan, M.D.'s NPI number?
Ayad Hamdan, M.D.'s National Provider Identifier (NPI) is 1144431230, issued on May 24, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Ayad Hamdan, M.D. located?
The NPPES record lists a practice address at 3855 Health Sciences Dr # 960, La Jolla, CA, 92093. Phone: (858) 822-6600. Providers update this record themselves, so call before visiting.
How can I verify Ayad Hamdan, M.D.'s license?
NPPES lists California license number C162882, 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 Ayad Hamdan, M.D. prescribe under Medicare Part D?
In 2024, Ayad Hamdan, M.D. had 679 Medicare Part D claims for 52 beneficiaries; the average among hematology & oncology physician prescribers was 877. 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.