Dean Leslie Duncan, DDS
Oral and Maxillofacial Surgery (Dentist) · San Francisco, CA
Dean Leslie Duncan, DDS is an oral and maxillofacial surgery (dentist) with a practice address in San Francisco, California, and NPI 1427179613, issued on Apr 3, 2007. Check the license (California 25882, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Dean Leslie Duncan
- Credential
- DDS
- Primary taxonomy
- Oral and Maxillofacial Surgery (Dentist) 1223S0112X
- License number
- 25882 CA
Self-reported in NPPES; status is on the state search - Practice location
- 48 Vicente St, San Francisco, CA 94127
- Phone
- (415) 661-6006
- Enumerated
- Apr 3, 2007
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (415) 661-6115
- Entity
- Type 1 · individual
8 nearest oral and maxillofacial surgery (dentist) records → All 987 in California → Look up another NPI →
Also registered at 48 Vicente St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Tamir Wardany, D.D.SGeneral Practice Dentistry1124199880
Verify Dean Leslie Duncan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 25882Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
36% more Medicare Part D claims than the average oral and maxillofacial surgery (dentist) in 2024
554 Medicare Part D claims for 200 beneficiaries, against an average of 406 among the 5,870 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims. 49 claims were for opioids.
Most prescribed
- Amoxicillin180 claims
- Chlorhexidine Gluconate161 claims
- Ibuprofen69 claims
- Azithromycin35 claims
- Tramadol Hcl33 claims
- Amoxicillin-Clavulanate Potass26 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.
Industry payments in 2024: $1,405.36
9 payments; by number, the most common kind was food and beverage; the largest payer was Geistlich Pharma, North America, Inc. The 4,075 providers of this specialty with any payment received $1,077.58 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Dean Leslie Duncan among 987 oral and maxillofacial surgery (dentist) records in California
Dean Leslie Duncan, DDS is one of 987 oral and maxillofacial surgery (dentist) records with a practice address in California. 75% 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 34% of them.
- NPI issued2007 · 34% of these records are older, 42% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileNo · 7% of these records are
- Record last updated2007 · 67% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 1223S0112X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Oral and Maxillofacial Surgery (Dentist) providers in California
There are 987 oral and maxillofacial surgery (dentist) records in California.
All 987 in California → Every provider in San Francisco → Oral and Maxillofacial Surgery (Dentist) nationwide →
The 8 oral and maxillofacial surgery (dentist) records with the nearest ZIP codes
- Mugdha Patwardhan, DDS MDSan Francisco, CA 941271619120722
- Eric Scharf, DDSSan Francisco, CA 941271043346174
- Joseph Yang, MD, DMD, MBESan Francisco, CA 941271003254137
- Forrest Duan, DMDSan Francisco, CA 941221821210196
- Morgan Nelson, DDSSan Francisco, CA 941221326600834
- Theodore Ng, DDSSan Francisco, CA 941321265562466
- David Ahn, DMDSan Francisco, CA 941211265865216
- Stephen Connelly, M.D.,D.D.S.San Francisco, CA 941211720201692
Common questions
What is Dean Leslie Duncan, DDS's NPI number?
Dean Leslie Duncan, DDS's National Provider Identifier (NPI) is 1427179613, issued on Apr 3, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Dean Leslie Duncan, DDS located?
The NPPES record lists a practice address at 48 Vicente St, San Francisco, CA, 94127. Phone: (415) 661-6006. Providers update this record themselves, so call before visiting.
How can I verify Dean Leslie Duncan, DDS's license?
NPPES lists California license number 25882, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Dean Leslie Duncan, DDS prescribe under Medicare Part D?
In 2024, Dean Leslie Duncan, DDS had 554 Medicare Part D claims for 200 beneficiaries; the average among oral and maxillofacial surgery (dentist) prescribers was 406. 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.