Daniel J. Son, M.D.
Family Medicine Physician · Los Gatos, CA
Daniel J. Son, M.D. is a family medicine physician with a practice address in Los Gatos, California, and NPI 1508993528, issued on Feb 27, 2007. Check the license (California A71191, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Daniel J. Son
- Credential
- M.D.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- A71191 CA
Self-reported in NPPES; status is on the state search - Practice location
- 15400 Los Gatos Blvd, Los Gatos, CA 95032
- Phone
- (408) 730-6200
- Enumerated
- Feb 27, 2007
- Record last updated
- Jun 6, 2025
- Medicare enrollment
- Enrolled (PECOS I20090605000344); accepts Medicare assignment
- Medical or professional school
- University Of Colorado School Of Medicine, Denver, 1998
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 17,133 in California → Look up another NPI →
Also registered at 15400 Los Gatos Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Daniel J. Son in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A71191Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
93% fewer Medicare Part D claims than the average family medicine physician in 2024
250 Medicare Part D claims for 201 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D.
Most prescribed
- Cephalexin44 claims
- Amoxicillin-Clavulanate Potass18 claims
- Triamcinolone Acetonide15 claims
- Paxlovid14 claims
- Doxycycline Hyclate12 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.
Bills Medicare through one group practice
- Sutter Bay Medical FoundationLos Gatos, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Daniel J. Son among 17,133 family medicine physician records in California
Daniel J. Son, M.D. is one of 17,133 family 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 2007, is newer than 41% of them.
- NPI issued2007 · 41% of these records are older, 47% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated1998 · median 2005 among the 10,652 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 207Q00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
45 family medicine physician records list a practice address in Los Gatos
They are 45 of the 1,905 NPPES records with a practice address in Los Gatos, and 17,133 family medicine physician records in California.
All 17,133 in California → Every provider in Los Gatos → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- William Broad, MDLos Gatos, CA 950321750374591
- Tiffany Davies, M.D.Los Gatos, CA 950321386754133
- Mary Defigard, MDLos Gatos, CA 950321710914791
- Dewey Duckham, M.D.Los Gatos, CA 950321356369508
- Timothy Jen, M.D.Los Gatos, CA 950321013944628
- Neeraj Kochhar, MDLos Gatos, CA 950321033180294
- Thao Nguyen, MDLos Gatos, CA 950321619909975
- Arthur Polussa, M.D.Los Gatos, CA 950321629062021
Common questions
What is Daniel J. Son, M.D.'s NPI number?
Daniel J. Son, M.D.'s National Provider Identifier (NPI) is 1508993528, issued on Feb 27, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Daniel J. Son, M.D. located?
The NPPES record lists a practice address at 15400 Los Gatos Blvd, Los Gatos, CA, 95032. Phone: (408) 730-6200. Providers update this record themselves, so call before visiting.
How can I verify Daniel J. Son, M.D.'s license?
NPPES lists California license number A71191, 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 J. Son, M.D. prescribe under Medicare Part D?
In 2024, Daniel J. Son, M.D. had 250 Medicare Part D claims for 201 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.