Fan Zhang, MD
Medical Oncology Physician · Santa Rosa, CA
Fan Zhang, MD is a medical oncology physician with a practice address in Santa Rosa, California, and NPI 1619051695, issued on Oct 25, 2006. Check the license (California 81734, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Fan Zhang
- Credential
- MD
- Primary taxonomy
- Medical Oncology Physician 207RX0202X
- License numbers
- 81734 CA
A81734 CA
Self-reported in NPPES; status is on the state search - Practice location
- 401 Bicentennial Way, Santa Rosa, CA 95403
- Phone
- (707) 571-4000
- Enumerated
- Oct 25, 2006
- Record last updated
- Mar 5, 2026
- Medicaid ID
- 00A817340 CA
- Medicare enrollment
- Enrolled (PECOS I20241231002929); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest medical oncology physician records → All 447 in California → Look up another NPI →
Also registered at 401 Bicentennial Way
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Anna Ackerman, RNRegistered Nurse1376409409
- Patricia AdamsPhysical Therapist1124971825
- Hugo Aguilar, PHARMDPharmacist1992389134
- Heather Aiello, OTR/LOccupational Therapist1851155022
- Sandra Akrawi, REGISTERED DIETITIANRegistered Dietitian1790821031
- Miguel Alcala, LCSWClinical Social Worker1629857891
Verify Fan Zhang in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 81734Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
48% fewer Medicare Part D claims than the average medical oncology physician in 2024
368 Medicare Part D claims for 178 beneficiaries, against an average of 703 among the 4,230 providers of this specialty who prescribed in Part D.
Most prescribed
- Anastrozole66 claims
- Dexamethasone23 claims
- Prednisone19 claims
- Abiraterone Acetate17 claims
- Hydroxyurea16 claims
- Letrozole16 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: $80.15
1 payment: food and beverage; the largest payer was E.R. Squibb & Sons, L.L.C. 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 3 group practices
- Alaska Native Tribal Health ConsortiumAnchorage, AK
- North Platte Nebraska Hospital CorporationOgallala, NE
- Sutter Bay HospitalsLakeport, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Fan Zhang among 447 medical oncology physician records in California
Fan Zhang, 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 2006, is newer than 6% of them.
- NPI issued2006 · 6% of these records are older, 55% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 70% of these records are
- Graduated1986 · 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 Rosa → Medical Oncology Physician nationwide →
The 8 medical oncology physician records with the nearest ZIP codes
- Sara Keck, MDSanta Rosa, CA 954031770743312
- Wes Lee, M.D.Santa Rosa, CA 954031376633149
- Ming Zhou, MDModesto, CA 953551619933850
- Parminder Sidhu, MDMerced, CA 953401164663878
- Hely Shah, M.D.Ukiah, CA 954821912770660
- Christopher Williams, M.D.Eureka, CA 955011588899363
- Luko Laptalo, M.D.Carmichael, CA 956081114958501
- Haroon Rehman, MDCarmichael, CA 956081952784852
Common questions
What is Fan Zhang, MD's NPI number?
Fan Zhang, MD's National Provider Identifier (NPI) is 1619051695, issued on Oct 25, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Fan Zhang, MD located?
The NPPES record lists a practice address at 401 Bicentennial Way, Santa Rosa, CA, 95403. Phone: (707) 571-4000. Providers update this record themselves, so call before visiting.
How can I verify Fan Zhang, MD's license?
NPPES lists California license number 81734, 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 Fan Zhang, MD prescribe under Medicare Part D?
In 2024, Fan Zhang, MD had 368 Medicare Part D claims for 178 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.