Ayad Hamdan, M.D.
NPI 1144431230 · Hematology & Oncology Physician · La Jolla, CA
Enrolled with Medicare as Practitioner - Hematology/Oncology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ayad Hamdan, M.D. is a Hematology & Oncology Physician provider in La Jolla, CA (NPI 1144431230).
Provider details
- NPI number
- 1144431230
- Entity type
- Individual
- Primary specialty
- Hematology & Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- C162882 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
19 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
605 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 266 | $121 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 238 | $147 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 35 | $192 |
| New Patient Office Or Other Outpatient Visit With a High Level of Medical Decision Making, If Using Time, 60 Minutes Or More99205 | 29 | $182 |
| Hospital Discharge Day Management, More Than 30 Minutes99239 | 24 | $118 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 20 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Acyclovir | 108 | 26 |
| Oxycodone Hcl | 36 | — |
| Ruxolitinib Phosphatebrand: Jakafi | 35 | — |
| Prednisone | 24 | — |
| Apixabanbrand: Eliquis | 23 | — |
| Dexamethasone | 18 | — |
| Omeprazole | 17 | — |
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-05-24
- Last updated
- 2025-11-12
- Certified
- 2025-11-12
Frequently asked questions
- What is Ayad Hamdan's NPI number?
- Ayad Hamdan's National Provider Identifier (NPI) is 1144431230, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ayad Hamdan's specialty?
- Ayad Hamdan is listed in the NPPES registry with a primary specialty of Hematology & Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Ayad Hamdan located?
- Ayad Hamdan's practice location on file with NPPES is 3855 Health Sciences Dr # 960, La Jolla, CA 92093-1503.
- What is Ayad Hamdan's phone number?
- The practice phone number listed in the NPPES registry for Ayad Hamdan is (858) 822-6600.
- Does Ayad Hamdan accept Medicare?
- Ayad Hamdan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ayad Hamdan's NPI active?
- Yes — Ayad Hamdan's NPI (1144431230) is active in the NPPES registry as of the last update on 2025-11-12.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.