IndividualActive
Delphine Ong, M.D.
NPI 1023034022 · Medical Oncology Physician · Sacramento, CA
Delphine Ong, M.D. is a Medical Oncology Physician provider in Sacramento, CA (NPI 1023034022).
Provider details
- NPI number
- 1023034022
- Entity type
- Individual
- Primary specialty
- Medical Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- A49552 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
Detailed profile(91/100 index)
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.
Practice location
3301 C Street
Building 500
Sacramento, CA 95816
Phone: (916) 733-5300
Fax: (916) 733-5920
Street-level locationGet directions
Mailing address
3400 Data Dr
Rancho Cordova, CA 95670-7956
Registry dates
- Enumerated
- 2006-07-14
- Last updated
- 2014-01-09
Frequently asked questions
- What is Delphine Ong's NPI number?
- Delphine Ong's National Provider Identifier (NPI) is 1023034022, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Delphine Ong's specialty?
- Delphine Ong is listed in the NPPES registry with a primary specialty of Medical Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Delphine Ong located?
- Delphine Ong's practice location on file with NPPES is 3301 C Street, Sacramento, CA 95816.
- What is Delphine Ong's phone number?
- The practice phone number listed in the NPPES registry for Delphine Ong is (916) 733-5300.
- Is Delphine Ong's NPI active?
- Yes — Delphine Ong's NPI (1023034022) is active in the NPPES registry as of the last update on 2014-01-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.