Dean Peng, MD
NPI 1235298811 · Hematology & Oncology Physician · San Diego, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Dean Peng, MD is a Hematology & Oncology Physician provider in San Diego, CA (NPI 1235298811).
Provider details
- NPI number
- 1235298811
- Entity type
- Individual
- Primary specialty
- Hematology & Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- A81285 (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 · 29 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Anastrozole | 408 | 147 |
| Lenalidomide | 65 | — |
| Tamoxifen Citrate | 55 | 17 |
| Letrozole | 54 | 16 |
| Dexamethasone | 50 | 20 |
| Hydroxyurea | 42 | 15 |
| Ondansetron Hcl | 41 | 15 |
| Zanubrutinibbrand: Brukinsa | 37 | — |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-12-08
- Last updated
- 2021-11-22
Frequently asked questions
- What is Dean Peng's NPI number?
- Dean Peng's National Provider Identifier (NPI) is 1235298811, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Dean Peng's specialty?
- Dean Peng is listed in the NPPES registry with a primary specialty of Hematology & Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Dean Peng located?
- Dean Peng's practice location on file with NPPES is 4647 Zion Ave, San Diego, CA 92120-2507.
- What is Dean Peng's phone number?
- The practice phone number listed in the NPPES registry for Dean Peng is (619) 528-5000.
- Does Dean Peng accept Medicare?
- Dean Peng is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Dean Peng's NPI active?
- Yes — Dean Peng's NPI (1235298811) is active in the NPPES registry as of the last update on 2021-11-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.