Han A. Koh, MD
Hematology & Oncology Physician · Bellflower, CA
Han A. Koh, MD is a hematology & oncology physician with a practice address in Bellflower, California, and NPI 1508933441, issued on Nov 29, 2006. Check the license (California G72463, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Han A. Koh
- Credential
- MD
- Primary taxonomy
- Hematology & Oncology Physician 207RH0003X
- License number
- G72463 CA
Self-reported in NPPES; status is on the state search - Practice location
- 9400 Rosecrans Ave, Bellflower, CA 90706
- Phone
- (562) 461-3000
- Enumerated
- Nov 29, 2006
- Record last updated
- Sep 23, 2008 (not updated in 18 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20040126000995); accepts Medicare assignment
- Medical or professional school
- Saint Louis University School Of Medicine, 1990
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest hematology & oncology physician records → All 1,583 in California → Look up another NPI →
Also registered at 9400 Rosecrans Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Le Marie Abellon, NPNurse Practitioner1144389867
- Adrian Acevedo, MDEmergency Medicine Physician1407923303
- Pravin Acharya, MDEmergency Medicine Physician1104993088
- Michele Afshar, PAPhysician Assistant1013065952
- Maria Agbing-Mamangun, MDPsychiatry Physician1063589984
Verify Han A. Koh in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G72463Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
69% fewer Medicare Part D claims than the average hematology & oncology physician in 2024
271 Medicare Part D claims for 45 beneficiaries, against an average of 877 among the 10,784 providers of this specialty who prescribed in Part D. Brand-name drugs were 35% of claims.
Most prescribed
- Xtandi52 claims
- Dexamethasone31 claims
- Lenalidomide25 claims
- Revlimid15 claims
- Ondansetron Hcl14 claims
- Jakafi12 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): 85.2 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).
Industry payments in 2024: $461.07
16 payments; by number, the most common kind was food and beverage; the largest payer was Astellas Pharma US Inc. 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.
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
- Faculty Physicians And Surgeons OF LlusmLoma Linda, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Han A. Koh among 1,583 hematology & oncology physician records in California
Han A. Koh, MD 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
- Graduated1990 · median 2003 among the 1,124 with a school on file
- Record last updated2008 · 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 Bellflower → Hematology & Oncology Physician nationwide →
The 8 hematology & oncology physician records with the nearest ZIP codes
- Ana Borgas, MDBellflower, CA 907061013065937
- Everett Chen, MDBellflower, CA 907061295802114
- Youssef Gamal, MDBellflower, CA 907061912945700
- Carole Most, MDBellflower, CA 907061306985007
- Elizabeth Simmons, MDBellflower, CA 907061215008248
- Babak Baseri, M.D.Cerritos, CA 907031659716959
- John Khoury, MDCerritos, CA 907031790190429
- Paul La Porte, M.D., PH.D.Cerritos, CA 907031962760074
Common questions
What is Han A. Koh, MD's NPI number?
Han A. Koh, MD's National Provider Identifier (NPI) is 1508933441, issued on Nov 29, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Han A. Koh, MD located?
The NPPES record lists a practice address at 9400 Rosecrans Ave, Bellflower, CA, 90706. Phone: (562) 461-3000. Providers update this record themselves, so call before visiting.
How can I verify Han A. Koh, MD's license?
NPPES lists California license number G72463, 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 Han A. Koh, MD prescribe under Medicare Part D?
In 2024, Han A. Koh, MD had 271 Medicare Part D claims for 45 beneficiaries; the average among hematology & oncology physician prescribers was 877. Part D covers Medicare prescriptions only.
What is Han A. Koh, MD's MIPS final score?
The 2023 MIPS final score is 85.2 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.