NPPES file of Aug 9, 2026

James Yang Soong, M.D.

Neurology Physician · San Francisco, CA

James Yang Soong, M.D. is a neurology physician with a practice address in San Francisco, California, and NPI 1114992294, issued on Feb 21, 2006. Check the license (California G30656, 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
1114992294
Name
James Yang Soong
Credential
M.D.
Primary taxonomy
Neurology Physician 2084N0400X
License number
G30656 CA
Self-reported in NPPES; status is on the state search
Practice location
909 Hyde St, San Francisco, CA 94109
Phone
(415) 771-3040
Enumerated
Feb 21, 2006
Record last updated
Sep 26, 2017 (not updated in 9 years: call before relying on the address or phone)
Fax
(415) 885-6291
Medicare enrollment
Enrolled (PECOS I20100923000797); accepts Medicare assignment
Medical or professional school
University Of Chicago, Pritzker School Of Medicine, 1974
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 909 Hyde St

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

  1. Deborah Altemus, DODermatology Physician1821180993
  2. Azucena Arguelles, MDDermatology Physician1538265889
  3. Amy Bossen, M.D.Internal Medicine Physician1558371260
  4. Gary Chan, M.D.Internal Medicine Physician1699702324
  5. Serana Chester, PH.D.Clinical Neuropsychologist1184984734
  6. Irene Chew, ODOptometrist1306963475

Verify James Yang Soong in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license G30656
    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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86% fewer Medicare Part D claims than the average neurology physician in 2024

189 Medicare Part D claims for 34 beneficiaries, against an average of 1,370 among the 15,005 providers of this specialty who prescribed in Part D. Brand-name drugs were 14% of claims. 42 claims were for opioids.

  1. James Soong189
  2. Specialty average1,370

Most prescribed

  1. Hydrocodone-Acetaminophen28 claims
  2. Rexulti21 claims
  3. Oxycodone-Acetaminophen14 claims
  4. Donepezil Hcl12 claims
  5. Lidocaine12 claims
  6. Ibuprofen11 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.

James Yang Soong among 2,339 neurology physician records in California

James Yang Soong, M.D. is one of 2,339 neurology 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, 59% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileYes · 70% of these records are
  • Graduated1974 · median 2006 among the 1,628 with a school on file
  • Record last updated2017 · 55% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084N0400X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Neurology Physician providers in California

There are 2,339 neurology physician records in California.

The 8 neurology physician records with the nearest ZIP codes

  1. Ahmad Ata, MDSan Francisco, CA 941091972525939
  2. Matthew Butrum, MDSan Francisco, CA 941091710187133
  3. James Cole, MDSan Francisco, CA 941091548603426
  4. Floyd Fortuin, MDSan Francisco, CA 941091043381098
  5. Kenneth Laxer, M.D.San Francisco, CA 941091861460990
  6. Zuolu Liu, MDSan Francisco, CA 941091518384726
  7. Rebecca Michael, M.D.San Francisco, CA 941091588920532
  8. Daniel Shalom, M.D.San Francisco, CA 941091710015730

Common questions

What is James Yang Soong, M.D.'s NPI number?

James Yang Soong, M.D.'s National Provider Identifier (NPI) is 1114992294, issued on Feb 21, 2006. An NPI identifies a provider in billing; it is not a license.

Where is James Yang Soong, M.D. located?

The NPPES record lists a practice address at 909 Hyde St, San Francisco, CA, 94109. Phone: (415) 771-3040. Providers update this record themselves, so call before visiting.

How can I verify James Yang Soong, M.D.'s license?

NPPES lists California license number G30656, 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 James Yang Soong, M.D. prescribe under Medicare Part D?

In 2024, James Yang Soong, M.D. had 189 Medicare Part D claims for 34 beneficiaries; the average among neurology physician prescribers was 1,370. 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.