Brent Cham, MD
Medical Oncology Physician · Santa Maria, CA
Brent Cham, MD is a medical oncology physician with a practice address in Santa Maria, California, and NPI 1265061600, issued on Apr 7, 2020. Check the license (California A189790, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Brent Cham
- Credential
- MD
- Primary taxonomy
- Medical Oncology Physician 207RX0202X
- License number
- A189790 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1325 E Church St Ste 301, Santa Maria, CA 93454
- Phone
- (805) 349-9393
- Enumerated
- Apr 7, 2020
- Record last updated
- Jul 7, 2026
- Fax
- (805) 614-7929
- Medicare enrollment
- Enrolled (PECOS I20251010003509); accepts Medicare assignment
- Medical or professional school
- University Of South Florida College Of Medicine, 2020
- Entity
- Type 1 · individual
8 nearest medical oncology physician records → All 447 in California → Look up another NPI →
Also registered at 1325 E Church St Ste 301
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Ginger CarmichaelNurse Practitioner1760974018
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- Kathleen Kennedy, M.D.Hematology & Oncology Physician1528080967
- Kevin Kim, M.D.Hematology & Oncology Physician1689768848
Verify Brent Cham in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A189790Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
92% fewer Medicare Part D claims than the average medical oncology physician in 2024
53 Medicare Part D claims for 19 beneficiaries, against an average of 703 among the 4,230 providers of this specialty who prescribed in Part D.
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.
Industry payments in 2024: $1,182.11
31 payments; by number, the most common kind was food and beverage; the largest payer was Kite Pharma, 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.
Bills Medicare through one group practice
- County OF Los AngelesVan Nuys, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Brent Cham among 447 medical oncology physician records in California
Brent Cham, 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 fileYes · 70% of these records are
- Graduated2020 · 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 Santa Maria → Medical Oncology Physician nationwide →
The 8 medical oncology physician records with the nearest ZIP codes
- Thomas Spillane, MDSan Luis Obispo, CA 934011477558435
- Kevin Yoon, M.D.Lancaster, CA 935341972092674
- Robert Havard, MDVisalia, CA 932771225002694
- Li Ge, MDFresno, CA 937101194709188
- Oranus Mohammadi, MDFresno, CA 937101881119501
- Lucio Nobile, MDFresno, CA 937201396828588
- Daniel Greenwald, M.D.Santa Barbara, CA 931051235240987
- Mukul Gupta, M.D.Santa Barbara, CA 931051295843738
Common questions
What is Brent Cham, MD's NPI number?
Brent Cham, MD's National Provider Identifier (NPI) is 1265061600, issued on Apr 7, 2020. An NPI identifies a provider in billing; it is not a license.
Where is Brent Cham, MD located?
The NPPES record lists a practice address at 1325 E Church St Ste 301, Santa Maria, CA, 93454. Phone: (805) 349-9393. Providers update this record themselves, so call before visiting.
How can I verify Brent Cham, MD's license?
NPPES lists California license number A189790, 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 Brent Cham, MD prescribe under Medicare Part D?
In 2024, Brent Cham, MD had 53 Medicare Part D claims for 19 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.