NPPES file of Aug 9, 2026

Daniel Son, MD

Psychiatry Physician · Pomona, CA

Daniel Son, MD is a psychiatry physician with a practice address in Pomona, California, and NPI 1891915146, issued on Apr 27, 2007. Check the license (California 121848, 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
1891915146
Name
Daniel Son
Credential
MD
Primary taxonomy
Psychiatry Physician 2084P0800X
License number
121848 CA
Self-reported in NPPES; status is on the state search
Practice location
1977 N Garey Ave, Pomona, CA 91767
Phone
(909) 623-6651
Enumerated
Apr 27, 2007
Record last updated
May 9, 2014 (not updated in 12 years: call before relying on the address or phone)
Fax
(909) 623-0455
Medicare enrollment
Enrolled (PECOS I20141113002098); may accept Medicare assignment
Medical or professional school
Loma Linda University School Of Medicine, 2006
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 1977 N Garey Ave

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

  1. Maritza FernandezCase Manager/Care Coordinator1457726424
  2. Susan HenshawCase Manager/Care Coordinator1932416757
  3. Mark RodriguezRehabilitation Practitioner1154733327
  4. Cybil VidalCase Manager/Care Coordinator1326413394

Verify Daniel Son in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license 121848
    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% fewer Medicare Part D claims than the average psychiatry physician in 2024

985 Medicare Part D claims for 39 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims.

  1. Daniel Son985
  2. Specialty average1,000

Most prescribed

  1. Quetiapine Fumarate72 claims
  2. Benztropine Mesylate61 claims
  3. Invega Sustenna61 claims
  4. Divalproex Sodium Er47 claims
  5. Paliperidone Er41 claims
  6. Trazodone Hcl41 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.

Daniel Son among 8,673 psychiatry physician records in California

Daniel Son, MD is one of 8,673 psychiatry physician records with a practice address in California. 67% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 33% of them.

  • NPI issued2007 · 33% of these records are older, 48% newer
  • In a Medicare fileYes · 67% of these records are
  • In the CMS Doctors and Clinicians fileYes · 38% of these records are
  • Graduated2006 · median 2005 among the 3,295 with a school on file
  • Record last updated2014 · 54% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084P0800X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Psychiatry Physician providers in California

There are 8,673 psychiatry physician records in California.

The 8 psychiatry physician records with the nearest ZIP codes

  1. Pablo Davanzo, MDPomona, CA 917671598892473
  2. Gurjit Dhaliwal, M.D.Pomona, CA 917671417026444
  3. Mariam Garuba, M.D.Pomona, CA 917671275748261
  4. Wayne Houpt, MDPomona, CA 917671396796058
  5. Rebecca Kornbluh, M.D.Pomona, CA 917671710945340
  6. Heather Kurera, D.O.Pomona, CA 917671144228396
  7. Jonson Lin, M.D., D.C.Pomona, CA 917671114101995
  8. Sarita Mallya, MDPomona, CA 917671588648588

Common questions

What is Daniel Son, MD's NPI number?

Daniel Son, MD's National Provider Identifier (NPI) is 1891915146, issued on Apr 27, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Daniel Son, MD located?

The NPPES record lists a practice address at 1977 N Garey Ave, Pomona, CA, 91767. Phone: (909) 623-6651. Providers update this record themselves, so call before visiting.

How can I verify Daniel Son, MD's license?

NPPES lists California license number 121848, 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 Daniel Son, MD prescribe under Medicare Part D?

In 2024, Daniel Son, MD had 985 Medicare Part D claims for 39 beneficiaries; the average among psychiatry physician prescribers was 1,000. 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.