Dewey Jeffrey Duckham, M.D.
Family Medicine Physician · Los Gatos, CA
Dewey Jeffrey Duckham, M.D. is a family medicine physician with a practice address in Los Gatos, California, and NPI 1356369508, issued on Jul 17, 2006. Check the license (California A036604, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Dewey Jeffrey Duckham
- Credential
- M.D.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- A036604 CA
Self-reported in NPPES; status is on the state search - Practice location
- 15251 National Ave. Suite 108, Los Gatos, CA 95032
- Phone
- (408) 358-3835
- Enumerated
- Jul 17, 2006
- Record last updated
- May 14, 2015 (not updated in 11 years: call before relying on the address or phone)
- Fax
- (408) 358-2765
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 17,133 in California → Look up another NPI →
Verify Dewey Jeffrey Duckham in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A036604Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
99% fewer Medicare Part D claims than the average family medicine physician in 2024
39 Medicare Part D claims, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D.
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.
Dewey Jeffrey Duckham among 17,133 family medicine physician records in California
Dewey Jeffrey Duckham, 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 2006, is newer than 6% of them.
- NPI issued2006 · 6% of these records are older, 59% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileNo · 62% of these records are
- Record last updated2015 · 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
- 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
- Claire RaiLos Gatos, CA 950321043206675
Common questions
What is Dewey Jeffrey Duckham, M.D.'s NPI number?
Dewey Jeffrey Duckham, M.D.'s National Provider Identifier (NPI) is 1356369508, issued on Jul 17, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Dewey Jeffrey Duckham, M.D. located?
The NPPES record lists a practice address at 15251 National Ave. Suite 108, Los Gatos, CA, 95032. Phone: (408) 358-3835. Providers update this record themselves, so call before visiting.
How can I verify Dewey Jeffrey Duckham, M.D.'s license?
NPPES lists California license number A036604, 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 Dewey Jeffrey Duckham, M.D. prescribe under Medicare Part D?
In 2024, Dewey Jeffrey Duckham, M.D. had 39 Medicare Part D claims; 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.