Frederick Charles David, M.D.
Radiation Oncology Physician · Santa Rosa, CA
Frederick Charles David, M.D. is a radiation oncology physician with a practice address in Santa Rosa, California, and NPI 1982793808, issued on Oct 11, 2006. Check the license (California G34598, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Frederick Charles David
- Credential
- M.D.
- Primary taxonomy
- Radiation Oncology Physician 2085R0001X
- License number
- G34598 CA
Self-reported in NPPES; status is on the state search - Practice location
- 3555 Round Barn Circle, Santa Rosa, CA 95403
- Phone
- (707) 528-1050
- Enumerated
- Oct 11, 2006
- Record last updated
- Oct 21, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (707) 576-0445
- Medicaid ID
- 00G345980 CA
- Medicare enrollment
- Enrolled (PECOS I20080924000652); accepts Medicare assignment
- Medical or professional school
- University Of California, Geffen School Of Medicine, 1976
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
Also registered at 3555 Round Barn Circle
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Parwinder PurewalOncology Pharmacist1962136598
Verify Frederick Charles David in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G34598Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
15% fewer Medicare Part D claims than the average radiation oncology physician in 2024
114 Medicare Part D claims for 59 beneficiaries, against an average of 134 among the 4,851 providers of this specialty who prescribed in Part D.
Most prescribed
- Tamsulosin Hcl41 claims
- Triamcinolone Acetonide16 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.
Industry payments in 2024: $717.76
28 payments; by number, the most common kind was food and beverage; the largest payer was Lilly USA, LLC. 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
- Providence Medical FoundationSanta Rosa, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Radiation Oncology Physician providers in California
There are 735 radiation oncology physician records in California.
Other radiation oncology physician records in California
- Christina Abel, NURSE PRACTITIONEROrange, CA1033638911
- Jonathan Abelson, M.D.Thousand Oaks, CA1730348053
- Roy Abendroth, MDSan Francisco, CA1811988421
- Sunil Advani, M.D.La Jolla, CA1669649844
- Faisal Ahmed, MDStanford, CA1427314855
- Eugene Ahn, MDSimi Valley, CA1912999533
- Matthew Allen, MDRedding, CA1235301714
- Zahora Ally, MDAntioch, CA1306839915
- Munther Alqaisi, M.D.San Bernardino, CA1356454300
- Alessandra Amadeo, MDTorrance, CA1225011034
Common questions
What is Frederick Charles David, M.D.'s NPI number?
Frederick Charles David, M.D.'s National Provider Identifier (NPI) is 1982793808, issued on Oct 11, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Frederick Charles David, M.D. located?
The NPPES record lists a practice address at 3555 Round Barn Circle, Santa Rosa, CA, 95403. Phone: (707) 528-1050. Providers update this record themselves, so call before visiting.
How can I verify Frederick Charles David, M.D.'s license?
NPPES lists California license number G34598, 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 Frederick Charles David, M.D. prescribe under Medicare Part D?
In 2024, Frederick Charles David, M.D. had 114 Medicare Part D claims for 59 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.