NPPES file of Aug 9, 2026

Steven Woong Kim, MD

Hematology & Oncology Physician · Fullerton, CA

Steven Woong Kim, MD is a hematology & oncology physician with a practice address in Fullerton, California, and NPI 1003886698, issued on Jan 25, 2006. Check the license (California C52751, 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
1003886698
Name
Steven Woong Kim
Credential
MD
Primary taxonomy
Hematology & Oncology Physician 207RH0003X
License numbers
C52751 CA
200000491 NC
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
Jan 25, 2006
Record last updated
Oct 11, 2022
Fax
(714) 446-5800
Medicaid IDs
006018491 VA
89126K7 NC
Medicare enrollment
Enrolled (PECOS I20080122000852); accepts Medicare assignment
Medical or professional school
Baylor College Of Medicine, 1997
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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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. Monica Lee, M.D.Hematology & Oncology Physician1215129309
  3. Richard Lloyd, M.D.Medical Oncology Physician1073509030
  4. Steven Luminais, MDInternal Medicine Physician1427518752
  5. Yung Lyou, M.D., PH.D.Hematology & Oncology Physician1013277342
  6. Srivarshini Mohan, MDSurgery Physician1710379532

Verify Steven Woong Kim in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license C52751
    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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2.6 times the Medicare Part D claims of the average hematology & oncology physician in 2024

2,289 Medicare Part D claims for 384 beneficiaries, against an average of 877 among the 10,784 providers of this specialty who prescribed in Part D. Brand-name drugs were 24% of claims. 62 claims were for opioids.

  1. Steven Kim2,289
  2. Specialty average877

Most prescribed

  1. Hydroxyurea150 claims
  2. Eliquis144 claims
  3. Acyclovir107 claims
  4. Revlimid94 claims
  5. Prednisone84 claims
  6. Dexamethasone71 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: $1,522.52

80 payments; by number, the most common kind was food and beverage; the largest payer was Celgene Corporation. 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. Steven Kim$1,522.52
  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 FoundationChino Hills, CA

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

Steven Woong Kim among 1,583 hematology & oncology physician records in California

Steven Woong Kim, 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
  • Graduated1997 · 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.

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

  1. William Lawler, MDFullerton, CA 928351700886702
  2. Monica Lee, M.D.Fullerton, CA 928351215129309
  3. Yung Lyou, M.D., PH.D.Fullerton, CA 928351013277342
  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 Steven Woong Kim, MD's NPI number?

Steven Woong Kim, MD's National Provider Identifier (NPI) is 1003886698, issued on Jan 25, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Steven Woong Kim, MD 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 Steven Woong Kim, MD's license?

NPPES lists California license number C52751, 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 Steven Woong Kim, MD prescribe under Medicare Part D?

In 2024, Steven Woong Kim, MD had 2,289 Medicare Part D claims for 384 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.

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.