N Engl J Med
Antiviral AgentsHepacivirusHepatitis C
Dr. Stephen Mark Feinstone, MD
NPI1083850655
- Publications
- 12
- Industry payments
- $5,250
- State license
- 1
- Year NPI issued
- 2009
- Practice address
- 3021 Cathedral Ave Nw, Washington, DC 20008-3408
- Practice phone
- Call (202) 462-5068
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Find Dr. Feinstone's professional email, personal email and mobile number
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Dr. Stephen Mark Feinstone is an internist in Washington, District of Columbia
Dr. Feinstone practices in Washington, District of Columbia.
Dr. Feinstone's NPI, 1083850655, was assigned on January 1, 2009. Dr. Feinstone holds District of Columbia license MD25794.
NPI and contact details
- NPI
- 1083850655NPI Registry (opens in a new tab)
- NPI enumeration date
- January 1, 2009
- NPI status
- Active
- Practice phone
- (202) 462-5068
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
Sources: NPPES NPI Registry (CMS); and Dmand AI Professional Profile Data
Dr. Stephen Mark Feinstone's practice address is in Washington, District of Columbia
Dr. Feinstone's practice address in the NPI Registry is 3021 Cathedral Ave Nw, Washington, DC 20008-3408. The practice phone is (202) 462-5068.
- NPI Registry address3021 Cathedral Ave Nw, Washington, DC 20008-3408Phone(202) 462-5068
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dmand AI tracks the EHR system at Dr. Stephen Mark Feinstone's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Feinstone practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Dr. Feinstone's practice | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Stephen Mark Feinstone is one of 660 internists in District of Columbia
Internal medicine is Dr. Feinstone's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Feinstone is licensed in District of Columbia.
Specialties and state licenses
- Internal medicine, District of ColumbiaPrimary
Internists near Dr. Feinstone
Counts of internists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Stephen Mark Feinstone has 12 publications on record
Dmand AI links 12 papers to Dr. Feinstone, published from 2010 to 2021. 2013 was the busiest year, with 3. The most frequent topics are Hepacivirus, Hepatitis C and Amino Acid Sequence. Dr. Feinstone has published most often in J Virol. Dr. Feinstone's most frequent co-authors are Jay H. Hoofnagle, MD, Jorge A. Bezerra, MD and Mary Demino, DO.
Papers12
Years published2010 to 2021
Dr. Feinstone's papers by year, 2010 to 2021
Topics Dr. Feinstone writes about most
- Hepacivirus
- Hepatitis C
- Amino Acid Sequence
- Antibodies, Neutralizing
- Epitopes
- Hepatocytes
- Liver
- Neutralization Tests
Dr. Feinstone's most frequent co-authors
Recent publications by Dr. Feinstone
J Clin Invest
Cell DifferentiationCell ProliferationCells, Cultured
Proc Natl Acad Sci U S A
Amino Acid SequenceAntibodies, NeutralizingConserved Sequence
See who Dr. Feinstone researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Feinstone works with, so you can find a warm path to the right internists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Stephen Mark Feinstone received $5,250 in industry payments in 2021
CMS Open Payments shows 1 general payment to Dr. Feinstone from 1 drug or device company in 2021. Consulting fees make up the largest share, 100% of the total. Takeda Pharmaceuticals U.S.A., Inc. paid the most, $5,250.
Companies that paid Dr. Feinstone the most, 2021 to 2021
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Stephen Mark Feinstone's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Stephen Mark Feinstone
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Stephen Mark Feinstone's NPI number?
Dr. Stephen Mark Feinstone's NPI number is 1083850655. It was assigned on January 1, 2009, and it is active in the NPI Registry.
What kind of doctor is Dr. Stephen Mark Feinstone?
Dr. Stephen Mark Feinstone is an internist in Washington, District of Columbia. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Stephen Mark Feinstone practice?
Dr. Feinstone practices at 3021 Cathedral Ave Nw, Washington, DC 20008-3408.
What is Dr. Stephen Mark Feinstone's office phone number?
The practice phone on file for Dr. Feinstone is (202) 462-5068.
What is Dr. Stephen Mark Feinstone's medical license number?
Dr. Feinstone holds District of Columbia license MD25794.
Has Dr. Stephen Mark Feinstone received payments from drug or device companies?
CMS Open Payments shows $5,250 in general payments to Dr. Feinstone from 1 company from 2021 to 2021. The largest total came from Takeda Pharmaceuticals U.S.A., Inc.
How long has Dr. Stephen Mark Feinstone been practicing?
Dr. Feinstone's NPI was assigned in 2009.
Does Dr. Stephen Mark Feinstone do research?
Dmand AI links 12 publications to Dr. Feinstone, published from 2010 to 2021.
Who does Dr. Stephen Mark Feinstone publish with?
Dr. Feinstone's most frequent co-authors are Jay H. Hoofnagle, MD (2 shared papers), Jorge A. Bezerra, MD (1 shared paper) and Mary Demino, DO (1 shared paper).
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