Tangel Chang
Radiation Oncology Physician · Los Gatos, CA
Tangel Chang is a radiation oncology physician with a practice address in Los Gatos, California, and NPI 1306194915, issued on Aug 29, 2012. Check the license (California 20A13213, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Tangel Chang
- Primary taxonomy
- Radiation Oncology Physician 2085R0001X
- License numbers
- 20A13213 CA
1306194915 IA
34.012242 OH
Self-reported in NPPES; status is on the state search - Practice location
- 15400 National Ave Ste 100, Los Gatos, CA 95032
- Phone
- (408) 358-8400
- Enumerated
- Aug 29, 2012
- Record last updated
- Jul 13, 2026
- Fax
- (408) 358-2793
- Medicaid IDs
- 0196763 OH
1306194915 CA - Medicare enrollment
- Enrolled (PECOS I20251002000613); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest radiation oncology physician records → All 735 in California → Look up another NPI →
Also registered at 15400 National Ave Ste 100
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Deepak Khuntia, MDRadiation Oncology Physician1578525531
Verify Tangel Chang in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 20A13213Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
88% fewer Medicare Part D claims than the average radiation oncology physician in 2024
16 Medicare Part D claims for 12 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.
4 hospitals and group practices
- Community Hospital OF The Monterey PeninsulaMonterey, CA · Acute Care Hospitals4 of 5 stars
- Johnston Radiation Oncology LLCClayton, NC
- Smithfield Radiation Oncology LLCSmithfield, NC
- University OF North Carolina AT Chapel HillChapel Hill, NC
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
Tangel Chang among 735 radiation oncology physician records in California
Tangel Chang 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 2012, is newer than 71% of them.
- NPI issued2012 · 71% of these records are older, 24% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 74% of these records are
- Graduated2012 · 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 Los Gatos → Radiation Oncology Physician nationwide →
The 8 radiation oncology physician records with the nearest ZIP codes
- Deepak Khuntia, MDLos Gatos, CA 950321578525531
- Rakesh Patel, MDLos Gatos, CA 950321992768519
- Gordon Wong, M.D.Los Gatos, CA 950321235172446
- Ravichandran Ramakrishnan, MDGilroy, CA 950201508390816
- Benjamin Fisch, MDSanta Clara, CA 950511922185859
- Joseph Hastings, MD, MPHSanta Clara, CA 950511194815134
- Anita Lee, MDSanta Clara, CA 950511790773448
- Wilson Mai, MD, PHDSanta Clara, CA 950511285210633
Common questions
What is Tangel Chang's NPI number?
Tangel Chang's National Provider Identifier (NPI) is 1306194915, issued on Aug 29, 2012. An NPI identifies a provider in billing; it is not a license.
Where is Tangel Chang located?
The NPPES record lists a practice address at 15400 National Ave Ste 100, Los Gatos, CA, 95032. Phone: (408) 358-8400. Providers update this record themselves, so call before visiting.
How can I verify Tangel Chang's license?
NPPES lists California license number 20A13213, 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 Tangel Chang prescribe under Medicare Part D?
In 2024, Tangel Chang had 16 Medicare Part D claims for 12 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.