Jason Sun, M.D.
NPI 1790906188 · Hematology & Oncology Physician · Redwood City, CA
Enrolled with Medicare as Practitioner - Hematology/Oncology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Jason Sun, M.D. is a Hematology & Oncology Physician provider in Redwood City, CA (NPI 1790906188).
Provider details
- NPI number
- 1790906188
- Entity type
- Individual
- Primary specialty
- Hematology & Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- A93301 (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 · 18 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Osimertinib Mesylatebrand: Tagrisso | 149 | 16 |
| Prednisone | 62 | 21 |
| Hydroxyurea | 61 | 20 |
| Abiraterone Acetate | 48 | 12 |
| Palbociclibbrand: Ibrance | 37 | — |
| Dexamethasone | 37 | 19 |
| Anastrozole | 35 | 13 |
| Ibrutinibbrand: Imbruvica |
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-05-01
- Last updated
- 2021-12-17
Frequently asked questions
- What is Jason Sun's NPI number?
- Jason Sun's National Provider Identifier (NPI) is 1790906188, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Jason Sun's specialty?
- Jason Sun is listed in the NPPES registry with a primary specialty of Hematology & Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Jason Sun located?
- Jason Sun's practice location on file with NPPES is 1150 Veterans Blvd, Redwood City, CA 94063-2037.
- What is Jason Sun's phone number?
- The practice phone number listed in the NPPES registry for Jason Sun is (650) 299-4840.
- Does Jason Sun accept Medicare?
- Jason Sun is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Jason Sun's NPI active?
- Yes — Jason Sun's NPI (1790906188) is active in the NPPES registry as of the last update on 2021-12-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.