David William Duncan, MD
Family Medicine Physician · Lodi, CA
David William Duncan, MD is a family medicine physician with a practice address in Lodi, California, and NPI 1790742146, issued on Apr 28, 2006. Check the license (California G59412, as entered in NPPES) on the Medical Board of California; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- David William Duncan
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- G59412 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1335 S Fairmont Ave, Lodi, CA 95240
- Phone
- (209) 366-2007
- Enumerated
- Apr 28, 2006
- Record last updated
- Jun 10, 2010 (not updated in 16 years: call before relying on the address or phone)
- Medicaid ID
- 00G594120 CA
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 17,133 in California → Look up another NPI →
Also registered at 1335 S Fairmont Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Ripsy Jassal, MDFamily Medicine Physician1760945315
- Paul Sackschewsky, MDFamily Medicine Physician1689632077
- Maria Saluta-Ferrer, MDFamily Medicine Physician1497712152
- Nadeem Tahir-Kheli, M.D.Family Medicine Physician1558389742
Verify David William Duncan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G59412Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
David William Duncan among 17,133 family medicine physician records in California
David William Duncan, MD 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 not. Its NPI, issued in 2006, is newer than 6% of them.
- NPI issued2006 · 6% of these records are older, 59% newer
- In a Medicare fileNo · 81% of these records are
- In the CMS Doctors and Clinicians fileNo · 62% of these records are
- Record last updated2010 · 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).
33 family medicine physician records list a practice address in Lodi
They are 33 of the 964 NPPES records with a practice address in Lodi, and 17,133 family medicine physician records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 17,133 in California → Every provider in Lodi → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Frank Alvarado, MDLodi, CA 952401114147212
- Ruby Gill, M.DLodi, CA 952401609147354
- Mark Hoff, M.D.Lodi, CA 952401558455618
- Ripsy Jassal, MDLodi, CA 952401760945315
- Valerie Kidd, M.D.Lodi, CA 952401437177755
- Paul Sackschewsky, MDLodi, CA 952401689632077
- Maria Saluta-Ferrer, MDLodi, CA 952401497712152
- Rajvir Singh, M.D.Lodi, CA 952401477931178
Common questions
What is David William Duncan, MD's NPI number?
David William Duncan, MD's National Provider Identifier (NPI) is 1790742146, issued on Apr 28, 2006. An NPI identifies a provider in billing; it is not a license.
Where is David William Duncan, MD located?
The NPPES record lists a practice address at 1335 S Fairmont Ave, Lodi, CA, 95240. Phone: (209) 366-2007. Providers update this record themselves, so call before visiting.
How can I verify David William Duncan, MD's license?
NPPES lists California license number G59412, 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.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. 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.