Grace Sun, MD
NPI 1356071336 · Oncology Clinic/Center · Sacramento, CA
Grace Sun, MD is a Oncology Clinic/Center provider in Sacramento, CA (NPI 1356071336).
Provider details
- NPI number
- 1356071336
- Entity type
- Individual
- Primary specialty
- Oncology Clinic/CenterAmbulatory Health Care Facilities
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
Specialties & taxonomies
Ambulatory Health Care Facilities
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
4 yrs in NPPES registry
- Profile completeness38% of score
83% 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 |
|---|---|---|
| Atorvastatin Calcium | 56 | — |
| Amlodipine Besylate | 52 | 14 |
| Lisinopril | 34 | — |
| Metformin Hcl | 32 | — |
| Hydrochlorothiazide | 30 | — |
| Empagliflozinbrand: Jardiance | 21 | — |
| Amitriptyline Hcl | 15 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2022-06-13
- Last updated
- 2025-11-09
- Certified
- 2025-11-09
Frequently asked questions
- What is Grace Sun's NPI number?
- Grace Sun's National Provider Identifier (NPI) is 1356071336, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Grace Sun's specialty?
- Grace Sun is listed in the NPPES registry with a primary specialty of Oncology Clinic/Center (Ambulatory Health Care Facilities).
- Where is Grace Sun located?
- Grace Sun's practice location on file with NPPES is 4501 X St Ste 3016, Sacramento, CA 95817-2229.
- What is Grace Sun's phone number?
- The practice phone number listed in the NPPES registry for Grace Sun is (916) 734-5959.
- Is Grace Sun's NPI active?
- Yes — Grace Sun's NPI (1356071336) is active in the NPPES registry as of the last update on 2025-11-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.