Samuel Patrick Duffy, MD
Student in an Organized Health Care Education/Training Program · Washington, DC
Samuel Patrick Duffy, MD is a student in an organized health care education/training program with a practice address in Washington, District of Columbia, and NPI 1922703909, issued on Mar 31, 2023. Check the license with the District of Columbia board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Samuel Patrick Duffy
- Credential
- MD
- Primary taxonomy
- Student in an Organized Health Care Education/Training Program 390200000X
- Practice location
- 2115 Wisconsin Avenue NW, Washington, DC 20007
- Phone
- (202) 944-5400
- Enumerated
- Mar 31, 2023
- Record last updated
- Mar 31, 2023
- Entity
- Type 1 · individual
8 nearest student in an organized health care education/training program records → All 2,417 in District of Columbia → Look up another NPI →
Also registered at 2115 Wisconsin Avenue NW
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Aliyah Bolton, MDStudent in an Organized Health Care Education/Training Program1033962022
Verify Samuel Patrick Duffy in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich District of Columbia board licenses this professionCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
78% fewer Medicare Part D claims than the average student in an organized health care education/training program in 2024
41 Medicare Part D claims for 18 beneficiaries, against an average of 185 among the 59,748 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.
Samuel Patrick Duffy among 2,417 student in an organized health care education/training program records in District of Columbia
Samuel Patrick Duffy, MD is one of 2,417 student in an organized health care education/training program records with a practice address in District of Columbia. 33% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2023, is newer than 34% of them.
- NPI issued2023 · 34% of these records are older, 53% newer
- In a Medicare fileYes · 33% of these records are
- In the CMS Doctors and Clinicians fileNo · 3% of these records are
- Record last updated2023 · 22% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 390200000X and a District of Columbia practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
2,380 student in an organized health care education/training program records list a practice address in Washington
They are 2,380 of the 45,857 NPPES records with a practice address in Washington, and 2,417 student in an organized health care education/training program records in District of Columbia.
All 2,417 in District of Columbia → Every provider in Washington → Student in an Organized Health Care Education/Training Program nationwide →
The 8 student in an organized health care education/training program records with the nearest ZIP codes
- Wafa Al-Khayal, MDWashington, DC 200071356576557
- James Croffoot, MDWashington, DC 200071376778225
- Jennifer Desi, MDWashington, DC 200071104074194
- Anna GoldfarbWashington, DC 200071306006804
- Ross Goldstein, MDWashington, DC 200071326272758
- Nikole Jecen, MDWashington, DC 200071275774911
- Naoko Kashitani, MDWashington, DC 200071316171747
- Yoori Lee, MDWashington, DC 200071720228307
Common questions
What is Samuel Patrick Duffy, MD's NPI number?
Samuel Patrick Duffy, MD's National Provider Identifier (NPI) is 1922703909, issued on Mar 31, 2023. An NPI identifies a provider in billing; it is not a license.
Where is Samuel Patrick Duffy, MD located?
The NPPES record lists a practice address at 2115 Wisconsin Avenue NW, Washington, DC, 20007. Phone: (202) 944-5400. Providers update this record themselves, so call before visiting.
How can I verify Samuel Patrick Duffy, MD's license?
Search the District of Columbia board that licenses this profession; the NPPES record confirms identity only.
How much does Samuel Patrick Duffy, MD prescribe under Medicare Part D?
In 2024, Samuel Patrick Duffy, MD had 41 Medicare Part D claims for 18 beneficiaries; the average among student in an organized health care education/training program prescribers was 185. 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.