NPPES file of Aug 9, 2026

Yung Lyou, M.D., PH.D.

Hematology & Oncology Physician · Fullerton, CA

Yung Lyou, M.D., PH.D. is a hematology & oncology physician with a practice address in Fullerton, California, and NPI 1013277342, issued on May 21, 2012. Check the license (California A128545, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1013277342
Name
Yung Lyou
Credential
M.D., PH.D.
Primary taxonomy
Hematology & Oncology Physician 207RH0003X
License number
A128545 CA
Self-reported in NPPES; status is on the state search
Practice location
2151 N Harbor Blvd Ste 3200, Fullerton, CA 92835
Phone
(714) 446-5900
Enumerated
May 21, 2012
Record last updated
May 6, 2022
Medicare enrollment
Enrolled (PECOS I20180904000798); accepts Medicare assignment
Medical or professional school
State University Of Ny Upstate Medical University, 2012
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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8 nearest hematology & oncology physician records → All 1,583 in California → Look up another NPI →

Also registered at 2151 N Harbor Blvd Ste 3200

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Maria Diosdado, NPFamily Nurse Practitioner1700628385
  2. Steven Kim, MDHematology & Oncology Physician1003886698
  3. Monica Lee, M.D.Hematology & Oncology Physician1215129309
  4. Richard Lloyd, M.D.Medical Oncology Physician1073509030
  5. Steven Luminais, MDInternal Medicine Physician1427518752
  6. Srivarshini Mohan, MDSurgery Physician1710379532

Verify Yung Lyou in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A128545    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the California license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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89% more Medicare Part D claims than the average hematology & oncology physician in 2024

1,658 Medicare Part D claims for 290 beneficiaries, against an average of 877 among the 10,784 providers of this specialty who prescribed in Part D. 62 claims were for opioids.

  1. Yung Lyou1,658
  2. Specialty average877

Most prescribed

  1. Prednisone309 claims
  2. Abiraterone Acetate174 claims
  3. Dexamethasone110 claims
  4. Sodium Chloride68 claims
  5. Prochlorperazine Maleate67 claims
  6. Bicalutamide56 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: $3,004.47

116 payments; by number, the most common kind was food and beverage; the largest payer was AstraZeneca Pharmaceuticals LP. The 8,560 providers of this specialty with any payment received $7,481.41 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Yung Lyou$3,004.47
  2. Specialty average$7,481.41

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. Providence Medical FoundationFullerton, CA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Yung Lyou among 1,583 hematology & oncology physician records in California

Yung Lyou, M.D., PH.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 2012, is newer than 75% of them.

  • NPI issued2012 · 75% of these records are older, 21% newer
  • In a Medicare fileYes · 83% of these records are
  • In the CMS Doctors and Clinicians fileYes · 71% of these records are
  • Graduated2012 · median 2003 among the 1,124 with a school on file
  • Record last updated2022 · 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 Fullerton → Hematology & Oncology Physician nationwide →

The 8 hematology & oncology physician records with the nearest ZIP codes

  1. Steven Kim, MDFullerton, CA 928351003886698
  2. William Lawler, MDFullerton, CA 928351700886702
  3. Monica Lee, M.D.Fullerton, CA 928351215129309
  4. Roy Panares, MDFullerton, CA 928351285837229
  5. Devi Jane Asuncion, MDAnaheim, CA 928071538367875
  6. Ashraf Aziz, MDAnaheim, CA 928071386715365
  7. Farah Brasfield, MDAnaheim, CA 928071730256629
  8. David Choi, MDAnaheim, CA 928071760559629

Common questions

What is Yung Lyou, M.D., PH.D.'s NPI number?

Yung Lyou, M.D., PH.D.'s National Provider Identifier (NPI) is 1013277342, issued on May 21, 2012. An NPI identifies a provider in billing; it is not a license.

Where is Yung Lyou, M.D., PH.D. located?

The NPPES record lists a practice address at 2151 N Harbor Blvd Ste 3200, Fullerton, CA, 92835. Phone: (714) 446-5900. Providers update this record themselves, so call before visiting.

How can I verify Yung Lyou, M.D., PH.D.'s license?

NPPES lists California license number A128545, 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 Yung Lyou, M.D., PH.D. prescribe under Medicare Part D?

In 2024, Yung Lyou, M.D., PH.D. had 1,658 Medicare Part D claims for 290 beneficiaries; the average among hematology & oncology physician prescribers was 877. 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.