Charles Wang, MD / PHD
Radiation Oncology Physician · Sacramento, CA
Charles Wang, MD / PHD is a radiation oncology physician with a practice address in Sacramento, California, and NPI 1710650411, issued on Jul 28, 2021. Check the license (California A181964, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Charles Wang
- Credential
- MD / PHD
- Primary taxonomy
- Radiation Oncology Physician 2085R0001X
- License number
- A181964 CA
Self-reported in NPPES; status is on the state search - Practice location
- 4501 X St, Sacramento, CA 95817
- Phone
- (408) 858-3129
- Enumerated
- Jul 28, 2021
- Record last updated
- Jun 27, 2026
- Entity
- Type 1 · individual
8 nearest radiation oncology physician records → All 735 in California → Look up another NPI →
Also registered at 4501 X St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Kristine Ahlberg, RNOncology Registered Nurse1982086567
- Danielle Baham, RDRegistered Dietitian1427533249
- Cheryl Breed, NPNurse Practitioner1760408959
- Laura Brennan, F.N.PFamily Nurse Practitioner1235389826
- Radha CanepaInternal Medicine Physician1760767511
- Sally Denardo, M.D.Internal Medicine Physician1568447878
Verify Charles Wang in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A181964Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
22% fewer Medicare Part D claims than the average radiation oncology physician in 2024
104 Medicare Part D claims for 50 beneficiaries, against an average of 134 among the 4,851 providers of this specialty who prescribed in Part D. 18 claims were for opioids.
Most prescribed
- Tamsulosin Hcl19 claims
- Oxycodone Hcl12 claims
- Famotidine11 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.
Charles Wang among 735 radiation oncology physician records in California
Charles Wang, MD / PHD 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 2021, is newer than 98% of them.
- NPI issued2021 · 98% of these records are older, 1% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileNo · 74% of these records are
- 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 Sacramento → Radiation Oncology Physician nationwide →
The 8 radiation oncology physician records with the nearest ZIP codes
- Ruben Fragoso, MD, PHDSacramento, CA 958171417154436
- Zelanna Goldberg, M.D.Sacramento, CA 958171669454385
- Arta Monjazeb, M.D., PH.D.Sacramento, CA 958171619136835
- Minahal NaveedSacramento, CA 958171356099592
- Ky Nam Nguyen, M.D.Sacramento, CA 958171285011254
- Tony Quang, M.D.Sacramento, CA 958171457334534
- Shyam Rao, M.D., PH.D.Sacramento, CA 958171265559694
- Richard Valicenti, M.D.Sacramento, CA 958171235152232
Common questions
What is Charles Wang, MD / PHD's NPI number?
Charles Wang, MD / PHD's National Provider Identifier (NPI) is 1710650411, issued on Jul 28, 2021. An NPI identifies a provider in billing; it is not a license.
Where is Charles Wang, MD / PHD located?
The NPPES record lists a practice address at 4501 X St, Sacramento, CA, 95817. Phone: (408) 858-3129. Providers update this record themselves, so call before visiting.
How can I verify Charles Wang, MD / PHD's license?
NPPES lists California license number A181964, 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 Charles Wang, MD / PHD prescribe under Medicare Part D?
In 2024, Charles Wang, MD / PHD had 104 Medicare Part D claims for 50 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.