Jeffrey Zweig, MD
NPI 1053600312 · Hematology & Oncology Physician · Pleasant Hill, CA
Enrolled with Medicare as Practitioner - Hematology/Oncology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Jeffrey Zweig, MD is a Hematology & Oncology Physician provider in Pleasant Hill, CA (NPI 1053600312).
Provider details
- NPI number
- 1053600312
- Entity type
- Individual
- Primary specialty
- Hematology & Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- MD042323 (DC)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
15 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 · 37 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Abiraterone Acetate | 72 | 15 |
| Anastrozole | 70 | 24 |
| Dexamethasone | 62 | 25 |
| Prednisone | 61 | 26 |
| Hydroxyurea | 55 | 18 |
| Lenalidomide | 54 | 14 |
| Oxycodone Hcl | 50 | 16 |
| Acyclovir | 38 | 19 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2011-04-07
- Last updated
- 2021-12-17
Frequently asked questions
- What is Jeffrey Zweig's NPI number?
- Jeffrey Zweig's National Provider Identifier (NPI) is 1053600312, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Jeffrey Zweig's specialty?
- Jeffrey Zweig is listed in the NPPES registry with a primary specialty of Hematology & Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Jeffrey Zweig located?
- Jeffrey Zweig's practice location on file with NPPES is 400 Taylor Blvd Ste 202, Pleasant Hill, CA 94523-2163.
- What is Jeffrey Zweig's phone number?
- The practice phone number listed in the NPPES registry for Jeffrey Zweig is (925) 677-5041.
- Does Jeffrey Zweig accept Medicare?
- Jeffrey Zweig is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Jeffrey Zweig's NPI active?
- Yes — Jeffrey Zweig's NPI (1053600312) 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.