Arash Gabayan, M.D.
Radiation Oncology Physician · Beverly Hills, CA
Arash Gabayan, M.D. is a radiation oncology physician with a practice address in Beverly Hills, California, and NPI 1497867717, issued on Aug 31, 2006. Check the license (California A87475, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Arash Gabayan
- Credential
- M.D.
- Primary taxonomy
- Radiation Oncology Physician 2085R0001X
- License number
- A87475 CA
Self-reported in NPPES; status is on the state search - Practice location
- 8900 Wilshire Blvd, Beverly Hills, CA 90211
- Phone
- (310) 432-8989
- Enumerated
- Aug 31, 2006
- Record last updated
- Mar 24, 2014 (not updated in 12 years: call before relying on the address or phone)
- Fax
- (310) 432-8901
- Medicare enrollment
- Enrolled (PECOS I20070126000610); accepts Medicare assignment
- Medical or professional school
- University Of California, Geffen School Of Medicine, 2001
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest radiation oncology physician records → All 735 in California → Look up another NPI →
Also registered at 8900 Wilshire Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Linnea Chap, M.D.Hematology & Oncology Physician1700839362
- Afshin Gabayan, M.D.Hematology & Oncology Physician1659412757
- Patricia Gordon, MDRadiation Oncology Physician1740320811
- Keith Klein, M.D.,Nephrology Physician1982688040
- Jennifer Lang, M.D.Obstetrics & Gynecology Physician1669509436
- Becky Natali, PHARMD, MS, BCPSPharmacotherapy Pharmacist1548762941
Verify Arash Gabayan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A87475Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
52% fewer Medicare Part D claims than the average radiation oncology physician in 2024
64 Medicare Part D claims for 19 beneficiaries, against an average of 134 among the 4,851 providers of this specialty who prescribed in Part D. Brand-name drugs were 44% of claims.
Most prescribed
- Orgovyx20 claims
- Tamsulosin Hcl12 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The practice group's MIPS final score for 2023 (Medicare payment program): 76.4 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $2,578.06
40 payments; by number, the most common kind was food and beverage; the largest payer was RefleXion Medical, Inc. The 3,275 providers of this specialty with any payment received $1,897.85 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Beverly Hills Oncology Medical Group IncBeverly Hills, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Arash Gabayan among 735 radiation oncology physician records in California
Arash Gabayan, M.D. is one of 735 radiation 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 2006, is newer than 16% of them.
- NPI issued2006 · 16% of these records are older, 55% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 74% of these records are
- Graduated2001 · median 2005 among the 545 with a school on file
- Record last updated2014 · 55% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2085R0001X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Radiation Oncology Physician providers in California
There are 735 radiation oncology physician records in California.
All 735 in California → Every provider in Beverly Hills → Radiation Oncology Physician nationwide →
The 8 radiation oncology physician records with the nearest ZIP codes
- Patricia Gordon, MDBeverly Hills, CA 902111740320811
- Christina PhuongCulver City, CA 902321114439684
- Armand Bouzaglou, M.DDowney, CA 902411457430399
- David Khan, MDEl Segundo, CA 902451649274150
- Jennie Cho-Lim, M.D.Lawndale, CA 902601235372798
- Lesley Lawrenson, M.D., PH.D.Lawndale, CA 902601457691503
- Clifford Merlo, MDLawndale, CA 902601427198597
- David Rickles, MDLawndale, CA 902601700926862
Common questions
What is Arash Gabayan, M.D.'s NPI number?
Arash Gabayan, M.D.'s National Provider Identifier (NPI) is 1497867717, issued on Aug 31, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Arash Gabayan, M.D. located?
The NPPES record lists a practice address at 8900 Wilshire Blvd, Beverly Hills, CA, 90211. Phone: (310) 432-8989. Providers update this record themselves, so call before visiting.
How can I verify Arash Gabayan, M.D.'s license?
NPPES lists California license number A87475, 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.
How much does Arash Gabayan, M.D. prescribe under Medicare Part D?
In 2024, Arash Gabayan, M.D. had 64 Medicare Part D claims for 19 beneficiaries; the average among radiation oncology physician prescribers was 134. Part D covers Medicare prescriptions only.
What is Arash Gabayan, M.D.'s MIPS final score?
The 2023 MIPS final score is 76.4 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.