Xinyu Nan, M.D.
NPI 1326458175 · Hematology & Oncology Physician · Orange, CA
Enrolled with Medicare as Practitioner - Hematology/Oncology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Xinyu Nan, M.D. is a Hematology & Oncology Physician provider in Orange, CA (NPI 1326458175).
Provider details
- NPI number
- 1326458175
- Entity type
- Individual
- Primary specialty
- Hematology & Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- A148056 (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
12 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
934 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 Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 493 | $138 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 234 | $122 |
| New Patient Office Or Other Outpatient Visit With a High Level of Medical Decision Making, If Using Time, 60 Minutes Or More99205 | 50 | $236 |
| Complete Blood Cell Count (red Cells, White Blood Cell, Platelets), Automated Test and Automated Differential White Blood Cell Count85025 | 36 | $8 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 33 | $194 |
| Telephone Medical Discussion With Physician, 21-30 Minutes |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 37 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Anastrozole | 171 | 44 |
| Apixabanbrand: Eliquis | 167 | 39 |
| Ondansetronbrand: Ondansetron Odt | 67 | 42 |
| Prednisone | 65 | 22 |
| Acyclovir | 65 | 15 |
| Prochlorperazine Maleate | 60 | 35 |
| Tamoxifen Citrate | 46 | 15 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$6,990 across 300 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
- 2014-05-02
- Last updated
- 2020-08-17
- Certified
- 2020-08-17
Frequently asked questions
- What is Xinyu Nan's NPI number?
- Xinyu Nan's National Provider Identifier (NPI) is 1326458175, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Xinyu Nan's specialty?
- Xinyu Nan is listed in the NPPES registry with a primary specialty of Hematology & Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Xinyu Nan located?
- Xinyu Nan's practice location on file with NPPES is 1010 W La Veta Ave Ste 250, Orange, CA 92868-4303.
- What is Xinyu Nan's phone number?
- The practice phone number listed in the NPPES registry for Xinyu Nan is (714) 541-6622.
- Does Xinyu Nan accept Medicare?
- Xinyu Nan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Xinyu Nan's NPI active?
- Yes — Xinyu Nan's NPI (1326458175) is active in the NPPES registry as of the last update on 2020-08-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.