NPPES file of Aug 9, 2026

Alexander Hanjoon Song, MD

Hematology & Oncology Physician · Los Angeles, CA

Alexander Hanjoon Song, MD is a hematology & oncology physician with a practice address in Los Angeles, California, and NPI 1265964795, issued on Apr 3, 2017. Check the license (California A184827, 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 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1265964795
Name
Alexander Hanjoon Song
Credential
MD
Primary taxonomy
Hematology & Oncology Physician 207RH0003X
License number
A184827 CA
Self-reported in NPPES; status is on the state search
Practice location
1245 Wilshire Blvd Ste 303, Los Angeles, CA 90017
Phone
(213) 977-1214
Enumerated
Apr 3, 2017
Record last updated
May 22, 2025
Fax
(213) 482-8868
Medicare enrollment
Enrolled (PECOS I20230720001522); accepts Medicare assignment
Medical or professional school
Eastern Virginia Medical School, 2017
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 1245 Wilshire Blvd Ste 303

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

  1. Lisa Hineman, N.P.Adult Health Nurse Practitioner1043375785
  2. Seong Kim, MDHematology & Oncology Physician1316987605
  3. Sungwon Kyung, M.D.Hematology & Oncology Physician1831501840
  4. Asna Shilleh, NPFamily Nurse Practitioner1174266589
  5. Mia Wong, NPNurse Practitioner1336874635

Verify Alexander Hanjoon Song in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A184827
    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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4% more Medicare Part D claims than the average hematology & oncology physician in 2024

912 Medicare Part D claims for 165 beneficiaries, against an average of 877 among the 10,784 providers of this specialty who prescribed in Part D. Brand-name drugs were 34% of claims. 25 claims were for opioids.

  1. Alexander Song912
  2. Specialty average877

Most prescribed

  1. Anastrozole106 claims
  2. Xtandi38 claims
  3. Letrozole34 claims
  4. Hydroxyurea32 claims
  5. Prednisone31 claims
  6. Exemestane26 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): 100 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.

  1. Qualityout of 100 · 30% of the final score93.7
  2. Costnot scored (reweighted)
  3. Promoting interoperabilitynot scored (reweighted)
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $4,996.76

215 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. Alexander Song$4,996.76
  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. Los Angeles Hematology-Oncology Medical GroupLos Angeles, CA

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

Alexander Hanjoon Song among 1,583 hematology & oncology physician records in California

Alexander Hanjoon Song, 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 2017, is newer than 89% of them.

  • NPI issued2017 · 89% of these records are older, 8% newer
  • In a Medicare fileYes · 83% of these records are
  • In the CMS Doctors and Clinicians fileYes · 71% of these records are
  • Graduated2017 · 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.

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

  1. Aaron Burkenroad, MDLos Angeles, CA 900171619473667
  2. Ellsworth Grant, M.DLos Angeles, CA 900171043233760
  3. Jason Ho, M.D.Los Angeles, CA 900171174735658
  4. Seong Kim, MDLos Angeles, CA 900171316987605
  5. Sungwon Kyung, M.D.Los Angeles, CA 900171831501840
  6. Leo Orr, M.D.Los Angeles, CA 900171730102286
  7. Lasika Seneviratne, M.D.Los Angeles, CA 900171437268174
  8. Nenad Antic, MCLos Angeles, CA 900151346293883

Common questions

What is Alexander Hanjoon Song, MD's NPI number?

Alexander Hanjoon Song, MD's National Provider Identifier (NPI) is 1265964795, issued on Apr 3, 2017. An NPI identifies a provider in billing; it is not a license.

Where is Alexander Hanjoon Song, MD located?

The NPPES record lists a practice address at 1245 Wilshire Blvd Ste 303, Los Angeles, CA, 90017. Phone: (213) 977-1214. Providers update this record themselves, so call before visiting.

How can I verify Alexander Hanjoon Song, MD's license?

NPPES lists California license number A184827, 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 Alexander Hanjoon Song, MD prescribe under Medicare Part D?

In 2024, Alexander Hanjoon Song, MD had 912 Medicare Part D claims for 165 beneficiaries; the average among hematology & oncology physician prescribers was 877. Part D covers Medicare prescriptions only.

What is Alexander Hanjoon Song, MD's MIPS final score?

The 2023 MIPS final score is 100 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.