Christopher Di Simone, M.D.
Medical Oncology Physician · Rancho Mirage, CA
Christopher Di Simone, M.D. is a medical oncology physician with a practice address in Rancho Mirage, California, and NPI 1861461147, issued on Mar 17, 2006. Check the license (California A74788, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Christopher Di Simone
- Credential
- M.D.
- Primary taxonomy
- Medical Oncology Physician 207RX0202X
- License numbers
- A74788 CA
A74788 AZ
Self-reported in NPPES; status is on the state search - Practice location
- 39000 Bob Hope Dr, Rancho Mirage, CA 92270
- Phone
- (760) 346-7655
- Enumerated
- Mar 17, 2006
- Record last updated
- Apr 14, 2026
- Fax
- (760) 773-1667
- Medicaid ID
- 940917 AZ
- Medicare enrollment
- Enrolled (PECOS I20231006001405); accepts Medicare assignment
- Medical or professional school
- University Of California, Davis School Of Medicine, 1999
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest medical oncology physician records → All 447 in California → Look up another NPI →
Also registered at 39000 Bob Hope Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Benedict Abaya, FNP-BC, FNP-CFamily Nurse Practitioner1417685462
- Mehrdad Abbasi, MDInternal Medicine Physician1477646776
- Ala Abojaradeh, MDStudent in an Organized Health Care Education/Training Program1316733900
- Naeem Abu-Shehab, M.D.Hospitalist Physician1134363252
- Roux Abubakar, MDHospitalist Physician1982223822
- Mohammad Abushehab, MDStudent in an Organized Health Care Education/Training Program1457293516
Verify Christopher Di Simone in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A74788Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
5% fewer Medicare Part D claims than the average medical oncology physician in 2024
669 Medicare Part D claims for 157 beneficiaries, against an average of 703 among the 4,230 providers of this specialty who prescribed in Part D. Brand-name drugs were 24% of claims. 27 claims were for opioids.
Most prescribed
- Dexamethasone77 claims
- Prochlorperazine Maleate47 claims
- Eliquis46 claims
- Acyclovir36 claims
- Anastrozole34 claims
- Olanzapine33 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 MIPS final score for 2023 (Medicare payment program): 96 of 100
The Merit-based Incentive Payment System score is reported for this clinician. 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; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $477.56
18 payments; by number, the most common kind was food and beverage; the largest payer was Janssen Biotech, Inc. The 3,343 providers of this specialty with any payment received $11,773.47 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.
2 hospitals and group practices
- Eisenhower Medical CenterRancho Mirage, CA · Acute Care Hospitals4 of 5 stars
- Providence Medical FoundationSanta Rosa, 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.
Christopher Di Simone among 447 medical oncology physician records in California
Christopher Di Simone, M.D. 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
- Graduated1999 · median 2004 among the 312 with a school on file
- Record last updated2026 · 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 Rancho Mirage → Medical Oncology Physician nationwide →
The 8 medical oncology physician records with the nearest ZIP codes
- Manasa Vulchi, M.D.Rancho Mirage, CA 922701760739296
- Scott Brook, M.D.Palm Springs, CA 922621245424365
- Lawrence Leichman, M.D.Palm Springs, CA 922621891792305
- Osagie Bello, M.DBrawley, CA 922271164726378
- Chien-Shing Chen, M.D.Loma Linda, CA 923541073542692
- Hamid Mirshahidi, M.D.Loma Linda, CA 923541659307015
- Gayathri Nagaraj, MDLoma Linda, CA 923541346402286
- Zarah Dulce Lucas, MDLoma Linda, CA 923571235369703
Common questions
What is Christopher Di Simone, M.D.'s NPI number?
Christopher Di Simone, M.D.'s National Provider Identifier (NPI) is 1861461147, issued on Mar 17, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Christopher Di Simone, M.D. located?
The NPPES record lists a practice address at 39000 Bob Hope Dr, Rancho Mirage, CA, 92270. Phone: (760) 346-7655. Providers update this record themselves, so call before visiting.
How can I verify Christopher Di Simone, M.D.'s license?
NPPES lists California license number A74788, 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 Christopher Di Simone, M.D. prescribe under Medicare Part D?
In 2024, Christopher Di Simone, M.D. had 669 Medicare Part D claims for 157 beneficiaries; the average among medical oncology physician prescribers was 703. Part D covers Medicare prescriptions only.
What is Christopher Di Simone, M.D.'s MIPS final score?
The 2023 MIPS final score is 96 of 100. 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.