Karissa Britten, MD
Hematology & Oncology Physician · Los Angeles, CA
Karissa Britten, MD is a hematology & oncology physician with a practice address in Los Angeles, California, and NPI 1518461862, issued on Mar 21, 2018. Check the license (California A166753, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Karissa Britten
- Credential
- MD
- Primary taxonomy
- Hematology & Oncology Physician 207RH0003X
- License number
- A166753 CA
Self-reported in NPPES; status is on the state search - Practice location
- 127 S San Vicente Blvd FL 7, Los Angeles, CA 90048
- Phone
- (310) 888-8680
- Enumerated
- Mar 21, 2018
- Record last updated
- Aug 28, 2025
- Fax
- (310) 888-1886
- Medicare enrollment
- Enrolled (PECOS I20210521001263); accepts Medicare assignment
- Medical or professional school
- University Of California, Geffen School Of Medicine, 2018
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest hematology & oncology physician records → All 1,583 in California → Look up another NPI →
Also registered at 127 S San Vicente Blvd FL 7
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Marc AttiyehSurgical Oncology Physician1225471006
- Jin Sun Bitar, M.D.Medical Oncology Physician1477940161
- Victoria Cerda, MD, MPHObstetrics & Gynecology Physician1265929715
- Jason Chan, M.D. PH.D.Hematology & Oncology Physician1154735660
- Fahima Dossa, MDSurgical Oncology Physician1427832617
- Cristina Ferrone, M.D.Surgical Oncology Physician1316053192
Verify Karissa Britten in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A166753Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2 hospitals and group practices
- Cedars-Sinai Medical CenterWest Hollywood, CA · Acute Care Hospitals5 of 5 stars
- Cedars-Sinai Medical Care FoundationBeverly Hills, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
Karissa Britten among 1,583 hematology & oncology physician records in California
Karissa Britten, MD is one of 1,583 hematology & oncology physician records with a practice address in California. 83% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2018, is newer than 92% of them.
- NPI issued2018 · 92% of these records are older, 5% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 71% of these records are
- Graduated2018 · median 2003 among the 1,124 with a school on file
- Record last updated2025 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RH0003X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Hematology & Oncology Physician providers in California
There are 1,583 hematology & oncology physician records in California.
All 1,583 in California → Every provider in Los Angeles → Hematology & Oncology Physician nationwide →
The 8 hematology & oncology physician records with the nearest ZIP codes
- Mouni Audeh, M.D.West Hollywood, CA 900481265592174
- John Chute, M.D.West Hollywood, CA 900481164505319
- Maria Delioukina, MDWest Hollywood, CA 900481023035078
- Charles Forscher, MDLos Angeles, CA 900481235239088
- Richard Gould, MDWest Hollywood, CA 900481194743385
- Andrew Hendifar, MD, MPHWest Hollywood, CA 900481649473414
- Leonid Kleynberg, M.D.Los Angeles, CA 900481891750212
- Vera Kleynberg, M.D.Los Angeles, CA 900481568428324
Common questions
What is Karissa Britten, MD's NPI number?
Karissa Britten, MD's National Provider Identifier (NPI) is 1518461862, issued on Mar 21, 2018. An NPI identifies a provider in billing; it is not a license.
Where is Karissa Britten, MD located?
The NPPES record lists a practice address at 127 S San Vicente Blvd FL 7, Los Angeles, CA, 90048. Phone: (310) 888-8680. Providers update this record themselves, so call before visiting.
How can I verify Karissa Britten, MD's license?
NPPES lists California license number A166753, 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.