Timothy Bauer Duncan, MD
Emergency Medicine Physician · San Francisco, CA
Timothy Bauer Duncan, MD is an emergency medicine physician with a practice address in San Francisco, California, and NPI 1013908227, issued on Nov 4, 2005. Check the license (California G87083, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Timothy Bauer Duncan
- Credential
- MD
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- G87083 CA
Self-reported in NPPES; status is on the state search - Practice location
- 2333 Buchanan St, San Francisco, CA 94115
- Phone
- (209) 342-2300
- Enumerated
- Nov 4, 2005
- Record last updated
- Jul 13, 2026
- Fax
- (209) 524-4240
- Medicaid ID
- 00G870830 CA
- Medicare enrollment
- Enrolled (PECOS I20040423000792); accepts Medicare assignment
- Medical or professional school
- Geisel School Of Medicine At Dartmouth, 1994
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 7,751 in California → Look up another NPI →
Also registered at 2333 Buchanan St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Stephen Anderka, MDEmergency Medicine Physician1083605455
- Steven Ansley, MDEmergency Medicine Physician1851382378
- Jennifer Beachey, M.D.Internal Medicine Physician1285657049
- Robert Bowyer, DOEmergency Medicine Physician1144211517
Verify Timothy Bauer Duncan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G87083Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
26% more Medicare Part D claims than the average emergency medicine physician in 2024
284 Medicare Part D claims for 193 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. 34 claims were for opioids.
Most prescribed
- Cephalexin44 claims
- Hydrocodone-Acetaminophen30 claims
- Ondansetron Odt18 claims
- Ibuprofen15 claims
- Pantoprazole Sodium14 claims
- Prednisone14 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.
The MIPS final score for 2023 (Medicare payment program): 79.4 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- San Francisco Emergency Medical AssociatesSan Francisco, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Timothy Bauer Duncan among 7,751 emergency medicine physician records in California
Timothy Bauer Duncan, MD is one of 7,751 emergency 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 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 96% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 59% of these records are
- Graduated1994 · median 2011 among the 4,560 with a school on file
- Record last updated2026 · 59% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Emergency Medicine Physician providers in California
There are 7,751 emergency medicine physician records in California.
All 7,751 in California → Every provider in San Francisco → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Stephen Anderka, MDSan Francisco, CA 941151083605455
- Steven Ansley, MDSan Francisco, CA 941151851382378
- Robert Bowyer, DOSan Francisco, CA 941151144211517
- Jennifer Brokaw, MDSan Francisco, CA 941151104817626
- Robert Colvin, MDSan Francisco, CA 941151629069158
- Mary Jane Connell, MDSan Francisco, CA 941151881685311
- Leif Eriksen, MDSan Francisco, CA 941151235120767
- Corinne McLeary, MDSan Francisco, CA 941151093704603
Common questions
What is Timothy Bauer Duncan, MD's NPI number?
Timothy Bauer Duncan, MD's National Provider Identifier (NPI) is 1013908227, issued on Nov 4, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Timothy Bauer Duncan, MD located?
The NPPES record lists a practice address at 2333 Buchanan St, San Francisco, CA, 94115. Phone: (209) 342-2300. Providers update this record themselves, so call before visiting.
How can I verify Timothy Bauer Duncan, MD's license?
NPPES lists California license number G87083, 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 Timothy Bauer Duncan, MD prescribe under Medicare Part D?
In 2024, Timothy Bauer Duncan, MD had 284 Medicare Part D claims for 193 beneficiaries; the average among emergency medicine physician prescribers was 226. Part D covers Medicare prescriptions only.
What is Timothy Bauer Duncan, MD's MIPS final score?
The 2023 MIPS final score is 79.4 of 100. The average among 454,083 clinicians with a measured score was 83.5.
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.