Nelly Tan, MD
Radiation Oncology Physician · Los Angeles, CA
Nelly Tan, MD is a radiation oncology physician with a practice address in Los Angeles, California, and NPI 1871756254, issued on Jul 7, 2008. Check the license (California A114724, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Nelly Tan
- Credential
- MD
- Primary taxonomy
- Radiation Oncology Physician 2085R0001X
- License numbers
- A114724 CA
60018 AZ
ME148615 FL
Self-reported in NPPES; status is on the state search - Practice location
- 757 Westood Plz, Los Angeles, CA 90095
- Phone
- (310) 957-9021
- Enumerated
- Jul 7, 2008
- Record last updated
- Oct 18, 2022
- Medicare enrollment
- Enrolled (PECOS I20200213002742); accepts Medicare assignment
- Medical or professional school
- University Of California, Geffen School Of Medicine, 2008
- Entity
- Type 1 · individual
8 nearest radiation oncology physician records → All 735 in California → Look up another NPI →
Verify Nelly Tan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A114724Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
The practice group's MIPS final score for 2023 (Medicare payment program): 78.6 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Mayo Clinic ArizonaScottsdale, AZ
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Nelly Tan among 735 radiation oncology physician records in California
Nelly Tan, MD 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 2008, is newer than 57% of them.
- NPI issued2008 · 57% of these records are older, 38% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 74% of these records are
- Graduated2008 · median 2005 among the 545 with a school on file
- Record last updated2022 · 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 Angeles → Radiation Oncology Physician nationwide →
The 8 radiation oncology physician records with the nearest ZIP codes
- Phillip Beron, MDLos Angeles, CA 900951083698237
- David Demanes, M.D.Los Angeles, CA 900951407914757
- Paul Duong, M.D.Los Angeles, CA 900951790750768
- Hany Elsaleh, MDLos Angeles, CA 900951639104623
- Judith Ford, MDLos Angeles, CA 900951982638565
- Sara Kim, M.D.Los Angeles, CA 900951851405278
- Christopher King, M.D.Los Angeles, CA 900951962574145
- Patrick Kupelian, MDLos Angeles, CA 900951144205881
Common questions
What is Nelly Tan, MD's NPI number?
Nelly Tan, MD's National Provider Identifier (NPI) is 1871756254, issued on Jul 7, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Nelly Tan, MD located?
The NPPES record lists a practice address at 757 Westood Plz, Los Angeles, CA, 90095. Phone: (310) 957-9021. Providers update this record themselves, so call before visiting.
How can I verify Nelly Tan, MD's license?
NPPES lists California license number A114724, 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.
What is Nelly Tan, MD's MIPS final score?
The 2023 MIPS final score is 78.6 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.