Ben Chung, MD
NPI 1396823175 · Internal Medicine Physician · Oakland, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ben Chung, MD is a Internal Medicine Physician provider in Oakland, CA (NPI 1396823175).
Provider details
- NPI number
- 1396823175
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- A66431 (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 · 97 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 580 | 175 |
| Amlodipine Besylate | 383 | 115 |
| Losartan Potassium | 318 | 97 |
| Lisinopril | 317 | 98 |
| Tamsulosin Hcl | 207 | 70 |
| Simvastatin | 177 | 52 |
| Atenolol | 174 | 46 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-11-01
- Last updated
- 2021-12-06
Frequently asked questions
- What is Ben Chung's NPI number?
- Ben Chung's National Provider Identifier (NPI) is 1396823175, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ben Chung's specialty?
- Ben Chung is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Ben Chung located?
- Ben Chung's practice location on file with NPPES is 275 W Macarthur Blvd, Oakland, CA 94611-5641.
- What is Ben Chung's phone number?
- The practice phone number listed in the NPPES registry for Ben Chung is (510) 752-1000.
- Does Ben Chung accept Medicare?
- Ben Chung is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ben Chung's NPI active?
- Yes — Ben Chung's NPI (1396823175) is active in the NPPES registry as of the last update on 2021-12-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.