Alexander Nissen
- Publications
- 33
- Hospital affiliations
- 1
- Industry payments
- $14,835
- Medical groups
- 2
- State license
- 1
- Practice address
- 110 Irving Street NW, Washington, DC 20010
- Practice phone
- Call (202) 877-7000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Alexander Nissen's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Alexander Nissen is a general practice physician in Washington, District of Columbia
Alexander Nissen practices at MedStar Washington Hospital Center in Washington, District of Columbia, part of MedStar Health.
Alexander Nissen's NPI, 1730540386, was assigned on March 10, 2016. Alexander Nissen holds Virginia license 0101263081.
- NPI
- 1730540386NPI Registry (opens in a new tab)
- Medicare PAC ID
- 1052819901
- NPI enumeration date
- March 10, 2016
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (202) 877-7000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 36
- Medical school graduation
- 2016
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Alexander Nissen practices at MedStar Washington Hospital Center in Washington, District of Columbia
Alexander Nissen's primary practice is MedStar Washington Hospital Center, at 110 Irving Street NW, Washington, DC 20010 in The District County. The practice phone is (202) 877-7000.
- MedStar Washington Hospital Center110 Irving Street NW, Washington, DC 20010 · The District CountyPhone(202) 877-7000
Source: Dmand AI Affiliation Data
Alexander Nissen is affiliated with 3 sites of care and 2 medical groups
Alexander Nissen's primary practice is MedStar Washington Hospital Center in Washington, District of Columbia, part of MedStar Health. The medical group on file is MedStar Medical Group. Dmand AI also links Alexander Nissen to 1 more group practice or clinic, 1 home health agency and 1 medical group, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Alexander Nissen's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Alexander Nissen practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| MedStar Washington Hospital Center | Available with a free account |
| +2 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Alexander Nissen is one of 30 general practice physicians in District of Columbia
General practice is Alexander Nissen's primary specialty in the NPI Registry, under taxonomy code 208D00000X. Alexander Nissen is licensed in Virginia.
Specialties and state licenses
- General practice, VirginiaPrimary
General practice physicians near Alexander Nissen
Counts of general practice physicians 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
Alexander Nissen's patients have a median age of 64
Across all payers, Dmand AI patient panel data puts Alexander Nissen's median patient age at 64, with 31% women.
Alexander Nissen's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 64
Patient panel by sex, all payers
- Women31%
- Men65%
Source: Dmand AI Patient Panel Data
Alexander Nissen offers telehealth to Medicare patients
Alexander Nissen accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Alexander Nissen as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Coronary artery bypass graft (CABG): 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
Alexander Nissen has 33 publications on record
Dmand AI links 33 papers to Alexander Nissen, published from 2016 to 2025. 2019 was the busiest year, with 9. The most frequent topics are Cardiac Surgical Procedures, Aortic Valve and Heart Valve Prosthesis Implantation. Alexander Nissen has published most often in J Thorac Cardiovasc Surg. Alexander Nissen's most frequent co-authors are Tom C. Nguyen, MD, Anthony L. Estrera, MD and Kendra Janel Grubb, MD.
Alexander Nissen's papers by year, 2016 to 2025
Topics Alexander Nissen writes about most
- Cardiac Surgical Procedures
- Aortic Valve
- Heart Valve Prosthesis Implantation
- Minimally Invasive Surgical Procedures
- Aortic Aneurysm, Thoracic
- Aortic Valve Stenosis
- Heart Valve Diseases
- Heart Valve Prosthesis
Alexander Nissen's most frequent co-authors
- Tom C. Nguyen, MD9 shared papers
- Anthony L. Estrera, MD5 shared papers
- Kendra Janel Grubb, MD3 shared papers
Recent publications by Alexander Nissen
Semin Thorac Cardiovasc Surg
Semin Thorac Cardiovasc Surg
See who Alexander Nissen researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Alexander Nissen works with, so you can find a warm path to the right general practice physicians.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Alexander Nissen received $14,835 in industry payments from 2018 to 2025
CMS Open Payments shows 50 general payments to Alexander Nissen from 12 drug and device companies from 2018 to 2025. Grants make up the largest share, 67% of the total. Medtronic, Inc. paid the most, $13,190.
General payments to Alexander Nissen by program year, 2018 to 2025
General payments to Alexander Nissen by kind, 2018 to 2025
- Grants$10,00067%
- Food and beverage$2,94320%
- Travel and lodging$1,89113%
Companies that paid Alexander Nissen the most, 2018 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Alexander Nissen'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 | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab) |
| 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 Alexander Nissen
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Alexander Nissen's NPI number?
Alexander Nissen's NPI number is 1730540386. It was assigned on March 10, 2016, and it is active in the NPI Registry.
What does Alexander Nissen specialize in?
Alexander Nissen is a general practice physician in Washington, District of Columbia. The primary specialty in the NPI Registry is General Practice Physician (taxonomy code 208D00000X).
Where does Alexander Nissen practice?
Alexander Nissen practices at 110 Irving Street NW, Washington, DC 20010. Alexander Nissen's primary practice is MedStar Washington Hospital Center in Washington, District of Columbia, part of MedStar Health. Dmand AI also links Alexander Nissen to 1 group practice or clinic, 1 home health agency and 1 medical group.
What is Alexander Nissen's office phone number?
The practice phone on file for Alexander Nissen is (202) 877-7000.
What is Alexander Nissen's medical license number?
Alexander Nissen holds Virginia license 0101263081.
Which hospitals is Alexander Nissen affiliated with?
Alexander Nissen practices at MedStar Washington Hospital Center in Washington, District of Columbia.
What medical group is Alexander Nissen part of?
Alexander Nissen is linked to MedStar Medical Group. Dmand AI links Alexander Nissen to 1 more medical group.
Does Alexander Nissen accept Medicare?
Yes. CMS lists Alexander Nissen as accepting Medicare assignment.
Does Alexander Nissen offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Alexander Nissen as offering telehealth services.
Has Alexander Nissen received payments from drug or device companies?
CMS Open Payments shows $14,835 in general payments to Alexander Nissen from 12 companies from 2018 to 2025. The largest total came from Medtronic, Inc.
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How long has Alexander Nissen been practicing?
Alexander Nissen graduated from medical school in 2016, 10 years ago.
Does Alexander Nissen do research?
Dmand AI links 33 publications to Alexander Nissen, published from 2016 to 2025.
Who does Alexander Nissen publish with?
Alexander Nissen's most frequent co-authors are Tom C. Nguyen, MD (9 shared papers), Anthony L. Estrera, MD (5 shared papers) and Kendra Janel Grubb, MD (3 shared papers).
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