Charu Singh, M.D.
Radiation Oncology Physician · Ventura, CA
Charu Singh, M.D. is a radiation oncology physician with a practice address in Ventura, California, and NPI 1841741212, issued on Oct 20, 2016. Check the license (California A203177, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Charu Singh
- Credential
- M.D.
- Primary taxonomy
- Radiation Oncology Physician 2085R0001X
- License number
- A203177 CA
Self-reported in NPPES; status is on the state search - Practice location
- 2900 Loma Vista RD Ste 100, Ventura, CA 93003
- Phone
- (805) 648-5191
- Enumerated
- Oct 20, 2016
- Record last updated
- Mar 12, 2026
- Fax
- (805) 648-3458
- Medicare enrollment
- Enrolled (PECOS I20250728002028); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest radiation oncology physician records → All 735 in California → Look up another NPI →
Verify Charu Singh in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A203177Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
67% fewer Medicare Part D claims than the average radiation oncology physician in 2024
44 Medicare Part D claims for 27 beneficiaries, against an average of 134 among the 4,851 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: $280.58
4 payments; by number, the most common kind was food and beverage; the largest payer was Genmab U.S., 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
- Coastal Radiation Oncology Medical Group, Inc.Ventura, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Charu Singh among 735 radiation oncology physician records in California
Charu Singh, 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 2016, is newer than 84% of them.
- NPI issued2016 · 84% of these records are older, 13% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 74% of these records are
- Graduated2009 · median 2005 among the 545 with a school on file
- Record last updated2026 · 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 Ventura → Radiation Oncology Physician nationwide →
The 8 radiation oncology physician records with the nearest ZIP codes
- Thomas Fogel, MDVentura, CA 930031619969524
- Jeffrey Rodnick, MDVentura, CA 930031972595882
- Henry Montes, M.D.Oxnard, CA 930301215992193
- Timothy Oconnor, M.D.Oxnard, CA 930301982669396
- Robert Lum, M.D.Oxnard, CA 930361770589707
- Eugene Ahn, MDSimi Valley, CA 930651912999533
- Ari Kassardjian, MDSimi Valley, CA 930651689200115
- Lindsay Blount, M.D.Santa Barbara, CA 931051558417568
Common questions
What is Charu Singh, M.D.'s NPI number?
Charu Singh, M.D.'s National Provider Identifier (NPI) is 1841741212, issued on Oct 20, 2016. An NPI identifies a provider in billing; it is not a license.
Where is Charu Singh, M.D. located?
The NPPES record lists a practice address at 2900 Loma Vista RD Ste 100, Ventura, CA, 93003. Phone: (805) 648-5191. Providers update this record themselves, so call before visiting.
How can I verify Charu Singh, M.D.'s license?
NPPES lists California license number A203177, 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 Charu Singh, M.D. prescribe under Medicare Part D?
In 2024, Charu Singh, M.D. had 44 Medicare Part D claims for 27 beneficiaries; the average among radiation oncology physician prescribers was 134. 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.