Chunnan Liu, MD
NPI 1154409720 · Hematology & Oncology Physician · Walnut Creek, CA
Enrolled with Medicare as Practitioner - Hematology/Oncology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Chunnan Liu, MD is a Hematology & Oncology Physician provider in Walnut Creek, CA (NPI 1154409720).
Provider details
- NPI number
- 1154409720
- Entity type
- Individual
- Primary specialty
- Hematology & Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- A80860 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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 prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 21 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Letrozole | 232 | 99 |
| Palbociclibbrand: Ibrance | 84 | 12 |
| Tamoxifen Citrate | 49 | 23 |
| Anastrozole | 47 | 23 |
| Ondansetron Hcl | 46 | 26 |
| Prochlorperazine Maleate | 45 | 24 |
| Ribociclib Succinatebrand: Kisqali | 40 | — |
| Dexamethasone | 39 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-11-01
- Last updated
- 2021-12-09
Frequently asked questions
- What is Chunnan Liu's NPI number?
- Chunnan Liu's National Provider Identifier (NPI) is 1154409720, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Chunnan Liu's specialty?
- Chunnan Liu is listed in the NPPES registry with a primary specialty of Hematology & Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Chunnan Liu located?
- Chunnan Liu's practice location on file with NPPES is 1425 S Main St, Walnut Creek, CA 94596-5318.
- What is Chunnan Liu's phone number?
- The practice phone number listed in the NPPES registry for Chunnan Liu is (925) 295-4000.
- Does Chunnan Liu accept Medicare?
- Chunnan Liu is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Chunnan Liu's NPI active?
- Yes — Chunnan Liu's NPI (1154409720) is active in the NPPES registry as of the last update on 2021-12-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.