Cindy Okada Scharfen, M.D.
Radiation Oncology Physician · Santa Rosa, CA
Cindy Okada Scharfen, M.D. is a radiation oncology physician with a practice address in Santa Rosa, California, and NPI 1861582322, issued on Oct 13, 2006. Check the license (California G67266, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Cindy Okada Scharfen
- Credential
- M.D.
- Primary taxonomy
- Radiation Oncology Physician 2085R0001X
- License number
- G67266 CA
Self-reported in NPPES; status is on the state search - Practice location
- 3555 Round Barn Cir, Santa Rosa, CA 95403
- Phone
- (707) 528-1050
- Enumerated
- Oct 13, 2006
- Record last updated
- Nov 10, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (707) 576-0445
- Medicaid ID
- 00G672660 CA
- Medicare enrollment
- Enrolled (PECOS I20080606000670); accepts Medicare assignment
- Medical or professional school
- University Of California, San Francisco School Of Medicine, 1988
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest radiation oncology physician records → All 735 in California → Look up another NPI →
Also registered at 3555 Round Barn Cir
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Leena Agrawal, PHARMDOncology Pharmacist1174221634
- Ian Anderson, M.D.Hematology & Oncology Physician1518055573
- Lorraine Champion, MDSpecialist1932190949
- Parnian EslamiPharmacist Clinician (PhC)/ Clinical Pharmacy Specialist1477200111
- Justin Grenet, MDHematology & Oncology Physician1770102915
- Ralph Hanahan, M.D.Therapeutic Radiology Physician1801986641
Verify Cindy Okada Scharfen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G67266Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
12% more Medicare Part D claims than the average radiation oncology physician in 2024
150 Medicare Part D claims for 83 beneficiaries, against an average of 134 among the 4,851 providers of this specialty who prescribed in Part D. Brand-name drugs were 14% of claims. 11 claims were for opioids.
Most prescribed
- Tamsulosin Hcl31 claims
- Triamcinolone Acetonide25 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: $478.29
18 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).
Cindy Okada Scharfen among 735 radiation oncology physician records in California
Cindy Okada Scharfen, 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 2006, is newer than 16% of them.
- NPI issued2006 · 16% of these records are older, 55% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 74% of these records are
- Graduated1988 · median 2005 among the 545 with a school on file
- Record last updated2021 · 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 Santa Rosa → Radiation Oncology Physician nationwide →
The 8 radiation oncology physician records with the nearest ZIP codes
- Frederick David, M.D.Santa Rosa, CA 954031982793808
- Michael Chen, M.D.Santa Rosa, CA 954091417104720
- Haocheng Cai, DO, PHDTurlock, CA 953821548882632
- Pericles Ioannides, M.D.Sonora, CA 953701386007367
- Jorge Garcia-Young, M.D.Modesto, CA 953551902860802
- Eric Ku, MDModesto, CA 953551013478999
- Quoc Luu, M.D.Modesto, CA 953551689692808
- Christopher Neville, M.D.Modesto, CA 953551790743136
Common questions
What is Cindy Okada Scharfen, M.D.'s NPI number?
Cindy Okada Scharfen, M.D.'s National Provider Identifier (NPI) is 1861582322, issued on Oct 13, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Cindy Okada Scharfen, M.D. located?
The NPPES record lists a practice address at 3555 Round Barn Cir, Santa Rosa, CA, 95403. Phone: (707) 528-1050. Providers update this record themselves, so call before visiting.
How can I verify Cindy Okada Scharfen, M.D.'s license?
NPPES lists California license number G67266, 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 Cindy Okada Scharfen, M.D. prescribe under Medicare Part D?
In 2024, Cindy Okada Scharfen, M.D. had 150 Medicare Part D claims for 83 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.