NPPES file of Aug 9, 2026

Charles H. Song, M.D.

Pediatric Allergy/Immunology Physician · Los Angeles, CA

Charles H. Song, M.D. is a pediatric allergy/immunology physician with a practice address in Los Angeles, California, and NPI 1790792869, issued on Aug 2, 2006. Check the license (California G23461, 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
1790792869
Name
Charles H. Song
Credential
M.D.
Primary taxonomy
Pediatric Allergy/Immunology Physician 2080P0201X
License number
G23461 CA
Self-reported in NPPES; status is on the state search
Practice location
200 Medical Plaza Suite 265, Los Angeles, CA 90095
Phone
(310) 825-0867
Enumerated
Aug 2, 2006
Record last updated
Jul 5, 2018 (not updated in 8 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20041117000562); accepts Medicare assignment
Medical or professional school
Northwestern University Feinberg Medical School, 1971
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 200 Medical Plaza Suite 265

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

  1. Jessica Kianmahd, MS, LCGCGenetic Counselor (M.S.)1437661279
  2. Charles NewcomerPediatrics Physician1417248428
  3. Lisa Nicholson, NPNeonatal Nurse Practitioner1295934479
  4. Rebecca Signer, MS, LCGCGenetic Counselor (M.S.)1386156008
  5. Peter Szilagyi, MDPediatrics Physician1508897265
  6. Marlin Touma, MDNeonatal-Perinatal Medicine Physician1366646952

Verify Charles H. 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 G23461
    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

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4% fewer Medicare Part D claims than the average pediatric allergy/immunology physician in 2024

249 Medicare Part D claims for 44 beneficiaries, against an average of 259 among the 198 providers of this specialty who prescribed in Part D. Brand-name drugs were 63% of claims.

  1. Charles Song249
  2. Specialty average259

Most prescribed

  1. Montelukast Sodium33 claims
  2. Symbicort20 claims
  3. Budesonide-Formoterol Fumarate19 claims
  4. Xolair18 claims
  5. Breo Ellipta16 claims
  6. Dupixent Syringe14 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: $985.53

36 payments; by number, the most common kind was food and beverage; the largest payer was Genzyme Corporation. The 289 providers of this specialty with any payment received $7,101.54 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Charles Song$985.53
  2. Specialty average$7,101.54

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

Bills Medicare through 2 group practices

  1. Andrew K. Wong, M.D., Inc.Manhattan Beach, CA
  2. Oso Specialty Infusion IncIrvine, CA

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

Pediatric Allergy/Immunology Physician providers in California

There are 52 pediatric allergy/immunology physician records in California.

Other pediatric allergy/immunology physician records in California

  1. Sarah Afzal, MDPalo Alto, CA1477014959
  2. Barbara Ariue, M.D.San Bernardino, CA1013930874
  3. Alan Burckin, MDWalnut Creek, CA1285103440
  4. Manish Butte, M.D., PH.D.Los Angeles, CA1801861216
  5. Angela Chang, M.D.San Francisco, CA1518233808
  6. Talal Chatila, M.D.Los Angeles, CA1952321846
  7. Laurence Cheng, MD, PHDSan Francisco, CA1164636593
  8. Stuart Chudnofsky, MDRancho Mirage, CA1023719689
  9. Joseph Church, MDLos Angeles, CA1942393095
  10. Morton Cowan, M.D.San Francisco, CA1053354456

Common questions

What is Charles H. Song, M.D.'s NPI number?

Charles H. Song, M.D.'s National Provider Identifier (NPI) is 1790792869, issued on Aug 2, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Charles H. Song, M.D. located?

The NPPES record lists a practice address at 200 Medical Plaza Suite 265, Los Angeles, CA, 90095. Phone: (310) 825-0867. Providers update this record themselves, so call before visiting.

How can I verify Charles H. Song, M.D.'s license?

NPPES lists California license number G23461, 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 Charles H. Song, M.D. prescribe under Medicare Part D?

In 2024, Charles H. Song, M.D. had 249 Medicare Part D claims for 44 beneficiaries; the average among pediatric allergy/immunology physician prescribers was 259. 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.