NPPES file of Aug 9, 2026

Mark E. Song, MD

Emergency Medicine Physician · Fullerton, CA

Mark E. Song, MD is an emergency medicine physician with a practice address in Fullerton, California, and NPI 1497865281, issued on Aug 30, 2006. Check the license (California G34440, 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
1497865281
Name
Mark E. Song
Credential
MD
Primary taxonomy
Emergency Medicine Physician 207P00000X
License number
G34440 CA
Self-reported in NPPES; status is on the state search
Practice location
101 E Valencia Mesa Dr, Fullerton, CA 92835
Phone
(714) 992-3965
Enumerated
Aug 30, 2006
Record last updated
Jan 11, 2010 (not updated in 16 years: call before relying on the address or phone)
Medicaid ID
00G344400 CA
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 101 E Valencia Mesa Dr

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

  1. Daniel Abbott, MDEmergency Medicine Physician1518907864
  2. Nelson Aguinaga, RN, FNPFamily Nurse Practitioner1043909609
  3. Jonathon Ahn, MDAnesthesiology Physician1053803882
  4. Sora Ahn, RNCritical Care Medicine Registered Nurse1730026493
  5. Sherry Ansari, DPTPhysical Medicine & Rehabilitation Physician1467972992
  6. Tandeep Bains, PHARM.D.Pharmacist1568958114

Verify Mark E. 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 G34440
    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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9% fewer Medicare Part D claims than the average emergency medicine physician in 2024

205 Medicare Part D claims for 22 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. Brand-name drugs were 28% of claims.

  1. Mark Song205
  2. Specialty average226

Most prescribed

  1. Vascepa20 claims
  2. Atorvastatin Calcium19 claims
  3. Janumet12 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: $218.12

12 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 12,335 providers of this specialty with any payment received $953.79 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Mark Song$218.12
  2. Specialty average$953.79

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

Mark E. Song among 7,751 emergency medicine physician records in California

Mark E. Song, MD is one of 7,751 emergency medicine physician records with a practice address in California. 81% 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 4% of them.

  • NPI issued2006 · 4% of these records are older, 60% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileNo · 59% of these records are
  • Record last updated2010 · 59% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Emergency Medicine Physician providers in California

There are 7,751 emergency medicine physician records in California.

The 8 emergency medicine physician records with the nearest ZIP codes

  1. Daniel Abbott, MDFullerton, CA 928351518907864
  2. Karl Feng, MDFullerton, CA 928351306875190
  3. Timothy Greco, MDFullerton, CA 928351255369757
  4. Donald Greco, MDFullerton, CA 928351922032739
  5. John Jiao, MDFullerton, CA 928351407419070
  6. Scott Jones, MDFullerton, CA 928351740220094
  7. Iksoo Kang, MDFullerton, CA 928351093758393
  8. Kristine Koh, MDFullerton, CA 928351598712614

Common questions

What is Mark E. Song, MD's NPI number?

Mark E. Song, MD's National Provider Identifier (NPI) is 1497865281, issued on Aug 30, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Mark E. Song, MD located?

The NPPES record lists a practice address at 101 E Valencia Mesa Dr, Fullerton, CA, 92835. Phone: (714) 992-3965. Providers update this record themselves, so call before visiting.

How can I verify Mark E. Song, MD's license?

NPPES lists California license number G34440, 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 Mark E. Song, MD prescribe under Medicare Part D?

In 2024, Mark E. Song, MD had 205 Medicare Part D claims for 22 beneficiaries; the average among emergency medicine physician prescribers was 226. 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.