Olivia Celine Main, MD
Medical Oncology Physician · San Diego, CA
Olivia Celine Main, MD is a medical oncology physician with a practice address in San Diego, California, and NPI 1225664352, issued on Mar 20, 2020. Check the license (California 209103, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Olivia Celine Main
- Credential
- MD
- Primary taxonomy
- Medical Oncology Physician 207RX0202X
- License number
- 209103 CA
Self-reported in NPPES; status is on the state search - Practice location
- 200 W Arbor Dr, San Diego, CA 92103
- Phone
- (800) 926-8273
- Enumerated
- Mar 20, 2020
- Record last updated
- Jul 9, 2026
- Fax
- (888) 539-8781
- Entity
- Type 1 · individual
8 nearest medical oncology physician records → All 447 in California → Look up another NPI →
Also registered at 200 W Arbor Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Kristy AbelCertified Registered Nurse Anesthetist1962113035
- Paula Abeleda, NPFamily Nurse Practitioner1558945022
Verify Olivia Celine Main in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 209103Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
94% fewer Medicare Part D claims than the average medical oncology physician in 2024
43 Medicare Part D claims for 24 beneficiaries, against an average of 703 among the 4,230 providers of this specialty who prescribed in Part D. Brand-name drugs were 42% of 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.
Olivia Celine Main among 447 medical oncology physician records in California
Olivia Celine Main, MD 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 2020, is newer than 96% of them.
- NPI issued2020 · 96% of these records are older, 1% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileNo · 70% of these records are
- 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 San Diego → Medical Oncology Physician nationwide →
The 8 medical oncology physician records with the nearest ZIP codes
- Kaitlyn Dykes, MDSan Diego, CA 921031861952632
- Bassel El-Rayes, MDSan Diego, CA 921031437196433
- Wenji Guo, MDSan Diego, CA 921031538604392
- Siddharth Iyengar, MDSan Diego, CA 921031003376187
- Tanim Jain, MDSan Diego, CA 921031528695145
- Kelly McCann, M.D., PH.D.San Diego, CA 921031942599915
- Christina SniderSan Diego, CA 921031356960751
- Alexander TongSan Diego, CA 921031356804926
Common questions
What is Olivia Celine Main, MD's NPI number?
Olivia Celine Main, MD's National Provider Identifier (NPI) is 1225664352, issued on Mar 20, 2020. An NPI identifies a provider in billing; it is not a license.
Where is Olivia Celine Main, MD located?
The NPPES record lists a practice address at 200 W Arbor Dr, San Diego, CA, 92103. Phone: (800) 926-8273. Providers update this record themselves, so call before visiting.
How can I verify Olivia Celine Main, MD's license?
NPPES lists California license number 209103, 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 Olivia Celine Main, MD prescribe under Medicare Part D?
In 2024, Olivia Celine Main, MD had 43 Medicare Part D claims for 24 beneficiaries; the average among medical oncology physician prescribers was 703. Part D covers Medicare prescriptions only.
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.