Eleonor Tan Quan, M.D.
Hematology & Oncology Physician · Huntington Beach, CA
Eleonor Tan Quan, M.D. is a hematology & oncology physician with a practice address in Huntington Beach, California, and NPI 1770502254, issued on Jul 18, 2006. Check the license (California A53257, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Eleonor Tan Quan
- Credential
- M.D.
- Primary taxonomy
- Hematology & Oncology Physician 207RH0003X
- License numbers
- A53257 CA
19307 ND
Self-reported in NPPES; status is on the state search - Practice location
- 19582 Beach Blvd, Huntington Beach, CA 92648
- Phone
- (714) 252-9415
- Enumerated
- Jul 18, 2006
- Record last updated
- Apr 29, 2025
- Fax
- (714) 963-8407
- Medicaid ID
- 00A532570 CA
- Medicare enrollment
- Enrolled (PECOS I20230512000441); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest hematology & oncology physician records → All 1,583 in California → Look up another NPI →
Also registered at 19582 Beach Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Eleonor Tan Quan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A53257Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
86% fewer Medicare Part D claims than the average hematology & oncology physician in 2024
124 Medicare Part D claims for 40 beneficiaries, against an average of 877 among the 10,784 providers of this specialty who prescribed in Part D. Brand-name drugs were 15% of claims.
Most prescribed
- Dexamethasone15 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.
The practice group's MIPS final score for 2023 (Medicare payment program): 82.3 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
- Sanford Health NetworkVermillion, SD
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Eleonor Tan Quan among 1,583 hematology & oncology physician records in California
Eleonor Tan Quan, M.D. is one of 1,583 hematology & 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 8% of them.
- NPI issued2006 · 8% of these records are older, 54% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 71% of these records are
- Graduated1981 · median 2003 among the 1,124 with a school on file
- Record last updated2025 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RH0003X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Hematology & Oncology Physician providers in California
There are 1,583 hematology & oncology physician records in California.
All 1,583 in California → Every provider in Huntington Beach → Hematology & Oncology Physician nationwide →
The 8 hematology & oncology physician records with the nearest ZIP codes
- Mohamad BarakatHuntington Beach, CA 926481558534131
- David Burtzo, M.D.Huntington Beach, CA 926481336168814
- Luke Chen, M.D.Huntington Beach, CA 926481265451736
- Umair Ghani, M.D.Huntington Beach, CA 926481619266228
- Yaser Homsi, M.D.Huntington Beach, CA 926481790943983
- An Nguyen, M.D.Huntington Beach, CA 926481023011384
- Danny Nguyen, M.D.Huntington Beach, CA 926481386960334
- Karlos Oregel, M.D.Huntington Beach, CA 926481184913006
Common questions
What is Eleonor Tan Quan, M.D.'s NPI number?
Eleonor Tan Quan, M.D.'s National Provider Identifier (NPI) is 1770502254, issued on Jul 18, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Eleonor Tan Quan, M.D. located?
The NPPES record lists a practice address at 19582 Beach Blvd, Huntington Beach, CA, 92648. Phone: (714) 252-9415. Providers update this record themselves, so call before visiting.
How can I verify Eleonor Tan Quan, M.D.'s license?
NPPES lists California license number A53257, 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 Eleonor Tan Quan, M.D. prescribe under Medicare Part D?
In 2024, Eleonor Tan Quan, M.D. had 124 Medicare Part D claims for 40 beneficiaries; the average among hematology & oncology physician prescribers was 877. Part D covers Medicare prescriptions only.
What is Eleonor Tan Quan, M.D.'s MIPS final score?
The 2023 MIPS final score is 82.3 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.