David Freyer, DO
NPI 1578533865 · Medical Oncology Physician · Los Angeles, CA
Enrolled with Medicare as Practitioner - Medical Oncology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
David Freyer, DO is a Medical Oncology Physician provider in Los Angeles, CA (NPI 1578533865).
Provider details
- NPI number
- 1578533865
- Entity type
- Individual
- Primary specialty
- Medical Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Male
- Sole proprietor
- No
- License
- 20A10181 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
20 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
Mailing address
Registry dates
- Enumerated
- 2006-01-26
- Last updated
- 2023-11-27
- Certified
- 2020-10-12
Frequently asked questions
- What is David Freyer's NPI number?
- David Freyer's National Provider Identifier (NPI) is 1578533865, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is David Freyer's specialty?
- David Freyer is listed in the NPPES registry with a primary specialty of Medical Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is David Freyer located?
- David Freyer's practice location on file with NPPES is 1441 Eastlake Ave, Los Angeles, CA 90089-6062.
- What is David Freyer's phone number?
- The practice phone number listed in the NPPES registry for David Freyer is (323) 865-3000.
- Does David Freyer accept Medicare?
- David Freyer is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is David Freyer's NPI active?
- Yes — David Freyer's NPI (1578533865) is active in the NPPES registry as of the last update on 2023-11-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.