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AYAD HAMDAN M.D.
NPI 1144431230
Internal Medicine - Hematology & Oncology in La Jolla, CA

Active since May 24, 2007PECOS EnrolledAccepts Medicare Assignment
3855 HEALTH SCIENCES DR # 960, LA JOLLA, CA 92093(858) 822-6600(858) 822-6844 Get Directions Write a Review

NPPES record last updated: November 12, 2025. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: Nov 12, 2025, Jun 24, 2020, Aug 6, 2019 (3 updates tracked since 2019).

About Ayad Hamdan M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

AYAD HAMDAN M.D. (NPI 1144431230) is an individual hematology & oncology provider in La Jolla, California, licensed in California (C162882) and active in the NPI registry since May 2007. He is enrolled in Medicare PECOS and is a graduate of Other (2003).

NPPES Registry Identity

NPI1144431230
Entity TypeIndividualMale
Primary Taxonomy207RH0003X
Provider Legal NameAYAD HAMDANCredential: M.D.
Location Address3855 HEALTH SCIENCES DR # 960La Jolla, CA 92093-1503
Mailing AddressFile 57326Los Angeles, CA 90074-7326 · (800) 926-8273
Phone(858) 822-6600
Fax(858) 822-6844
Sole ProprietorNo
Medical School CMSOtherGraduated 2003
Enumeration DateMay 24, 2007
Last NPPES UpdateNovember 12, 20253 updates tracked since enumeration
NPPES CertifiedNovember 12, 2025
✔ NPI 1144431230 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Hematology & OncologyAllopathic & Osteopathic Physicians
Taxonomy Code207RH0003X
License✔ Licensed in CA · C162882
Definition

An internist doctor of osteopathy that specializes in the treatment of the combination of hematology and oncology disorders. A doctor of osteopathy that is board eligible/certified by the American Osteopathic Board of Internal Medicine WAS able to obtain a Certificate of Special Qualifications in the field of Hematology and Oncology. The Certificate is NO longer offered.

3855 HEALTH SCIENCES DR # 960, La Jolla, CA 92093
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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Ayad Hamdan M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID7911177183
PECOS Enrollment IDI20190906002196
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 6

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233
Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.
266 services52 patients
Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215
This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.
238 services80 patients
Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215
This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.
35 services23 patients
New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more 99205
This is a first-time patient visit where a healthcare professional spends 60-74 minutes with you. It involves a comprehensive evaluation, including your medical history and current health condition. They'll also advise on preventive health measures and formulate a treatment plan if needed.
29 services29 patients
Hospital discharge day management, more than 30 minutes 99239
Hospital discharge day management over 30 minutes involves a detailed process to ensure a smooth transition from hospital to home. It includes final examinations, discussion of your hospital stay, post-discharge instructions, and coordinating follow-up care.
24 services22 patients
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223
Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.
13 services12 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 92093 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$184.71 typical visit price
range $62.10 – $184.71
Typical copayment $46.17 (range $15.52 – $46.17)
Most-billed visit code 99205
Established Patient
$108.42 typical visit price
range $20.62 – $151.42
Typical copayment $27.10 (range $5.15 – $37.85)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Ayad Hamdan's NPI number?

The NPI number for Ayad Hamdan is 1144431230. It was assigned to this individual provider in the NPPES registry on May 24, 2007.

Where is Ayad Hamdan located?

Ayad Hamdan practices at 3855 Health Sciences Dr # 960, La Jolla, CA 92093. The listed phone number is (858) 822-6600.

What is Ayad Hamdan's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Hematology & Oncology, with taxonomy code 207RH0003X.

Is Ayad Hamdan enrolled in Medicare?

Yes. Ayad Hamdan is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

When was this NPI record last updated?

The NPPES record for Ayad Hamdan was last updated on November 12, 2025. NPI Profile syncs with the weekly NPPES data releases published by CMS.