Hao Zhang, M.D.
NPI 1558462424 · Hematology & Oncology Physician · Los Angeles, CA
Enrolled with Medicare as Practitioner - Hematology/Oncology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Hao Zhang, M.D. is a Hematology & Oncology Physician provider in Los Angeles, CA (NPI 1558462424).
Provider details
- NPI number
- 1558462424
- Entity type
- Individual
- Primary specialty
- Hematology & Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- A72878 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
19 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
3,390 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
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 .
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 Straightforward Or Low Level of Medical Decision Making, Per Day, If Using Time, at Least 25 Minutes99231 | 1,639 | $51 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 755 | $82 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 313 | $139 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 147 | $99 |
| Administration of Chemotherapy Into Vein, 1 Hour Or Less96413 | 131 | $149 |
| Injection of Drug Or Substance Under Skin Or Into Muscle96372 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 30 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Anastrozole | 176 | 39 |
| Alendronate Sodium | 79 | 20 |
| Hydroxyurea | 69 | 15 |
| Abiraterone Acetate | 60 | — |
| Apixabanbrand: Eliquis | 59 | 11 |
| Prednisone | 56 | — |
| Epoetin Alfabrand: Procrit | 45 | 12 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$7,313 across 261 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-09-25
- Last updated
- 2024-09-17
- Certified
- 2024-09-17
Frequently asked questions
- What is Hao Zhang's NPI number?
- Hao Zhang's National Provider Identifier (NPI) is 1558462424, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Hao Zhang's specialty?
- Hao Zhang is listed in the NPPES registry with a primary specialty of Hematology & Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Hao Zhang located?
- Hao Zhang's practice location on file with NPPES is 1700 E Cesar E Chavez Ave Ste 2600, Los Angeles, CA 90033-2434.
- What is Hao Zhang's phone number?
- The practice phone number listed in the NPPES registry for Hao Zhang is (323) 264-0430.
- Does Hao Zhang accept Medicare?
- Hao Zhang is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Hao Zhang's NPI active?
- Yes — Hao Zhang's NPI (1558462424) is active in the NPPES registry as of the last update on 2024-09-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.