David R. Freyer, DO
Medical Oncology Physician · Los Angeles, CA
David R. Freyer, DO is a medical oncology physician with a practice address in Los Angeles, California, and NPI 1578533865, issued on Jan 26, 2006. Check the license (California 20A10181, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- David R. Freyer
- Credential
- DO
- Primary taxonomy
- Medical Oncology Physician 207RX0202X
- License numbers
- 20A10181 CA
5101009446 MI
Self-reported in NPPES; status is on the state search - Practice location
- 1441 Eastlake Ave, Los Angeles, CA 90089
- Phone
- (323) 865-3000
- Enumerated
- Jan 26, 2006
- Record last updated
- Nov 27, 2023
- Medicare enrollment
- Enrolled (PECOS I20080114000533); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest medical oncology physician records → All 447 in California → Look up another NPI →
Also registered at 1441 Eastlake Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Mark Agulnik, MDMedical Oncology Physician1164448734
- Sandra AlgazeMedical Oncology Physician1861886707
- Paige Asawa, LMFTMarriage & Family Therapist1487296406
- Akbar Ashrafi, MDStudent in an Organized Health Care Education/Training Program1063913531
- Cherry AuHematology & Oncology Physician1346828076
- Raed Azhar, M.DUrology Physician1093061053
Verify David R. Freyer in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 20A10181Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through 2 group practices
- Childrens Hospital Los Angeles Medical Group IncLos Angeles, CA
- Usc Care Medical Group IncLos Angeles, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
David R. Freyer among 447 medical oncology physician records in California
David R. Freyer, DO is one of 447 medical oncology physician records with a practice address in California. 82% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 6% of them.
- NPI issued2006 · 6% of these records are older, 55% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 70% of these records are
- Graduated1981 · median 2004 among the 312 with a school on file
- Record last updated2023 · 41% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RX0202X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Medical Oncology Physician providers in California
There are 447 medical oncology physician records in California.
All 447 in California → Every provider in Los Angeles → Medical Oncology Physician nationwide →
The 8 medical oncology physician records with the nearest ZIP codes
- Mark Agulnik, MDLos Angeles, CA 900891164448734
- Anthony El-Khoueiry, M.D.Los Angeles, CA 900891891730412
- Barbara Gitlitz, M.D.Los Angeles, CA 900891467488015
- Amir Goldkorn, M.D.Los Angeles, CA 900891528281953
- Steven Grossman, MDLos Angeles, CA 900891790768638
- Syma Iqbal, M.D.Los Angeles, CA 900891518982206
- Stephen Liu, MDLos Angeles, CA 900891184788432
- Jacek Pinski, M.D.Los Angeles, CA 900891720014160
Common questions
What is David R. Freyer, DO's NPI number?
David R. Freyer, DO's National Provider Identifier (NPI) is 1578533865, issued on Jan 26, 2006. An NPI identifies a provider in billing; it is not a license.
Where is David R. Freyer, DO located?
The NPPES record lists a practice address at 1441 Eastlake Ave, Los Angeles, CA, 90089. Phone: (323) 865-3000. Providers update this record themselves, so call before visiting.
How can I verify David R. Freyer, DO's license?
NPPES lists California license number 20A10181, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.