Hui-Zi Chen, M.D., PH.D.
NPI 1386082691 · Medical Oncology Physician · Milwaukee, WI
Enrolled with Medicare as Practitioner - Hematology/Oncology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Hui-Zi Chen, M.D., PH.D. is a Medical Oncology Physician provider in Milwaukee, WI (NPI 1386082691).
Provider details
- NPI number
- 1386082691
- Entity type
- Individual
- Primary specialty
- Medical Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D., PH.D.
- Sex
- Female
- Sole proprietor
- No
- License
- 74761 (WI)
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
13 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
245 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 134 | $136 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 96 | $16 |
| New Patient Office Or Other Outpatient Visit With a High Level of Medical Decision Making, If Using Time, 60 Minutes Or More99205 | 15 | $161 |
Typical Medicare-allowed amounts for these services range $16–$161 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 8 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Dexamethasone | 41 | 28 |
| Olanzapine | 34 | 26 |
| Ondansetron Hcl | 24 | 23 |
| Trametinib Dimethyl Sulfoxidebrand: Mekinist | 16 | — |
| Levothyroxine Sodium | 15 | — |
| Alectinib Hclbrand: Alecensa | 12 | — |
| Sonidegib Phosphatebrand: Odomzo | 11 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$16,024 across 8 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
- 2013-06-08
- Last updated
- 2021-03-26
- Certified
- 2021-03-26
Frequently asked questions
- What is Hui-Zi Chen's NPI number?
- Hui-Zi Chen's National Provider Identifier (NPI) is 1386082691, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Hui-Zi Chen's specialty?
- Hui-Zi Chen is listed in the NPPES registry with a primary specialty of Medical Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Hui-Zi Chen located?
- Hui-Zi Chen's practice location on file with NPPES is 9200 W Wisconsin Ave, Milwaukee, WI 53226-3522.
- What is Hui-Zi Chen's phone number?
- The practice phone number listed in the NPPES registry for Hui-Zi Chen is (414) 805-4600.
- Does Hui-Zi Chen accept Medicare?
- Hui-Zi Chen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Hui-Zi Chen's NPI active?
- Yes — Hui-Zi Chen's NPI (1386082691) is active in the NPPES registry as of the last update on 2021-03-26.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.