Alexander Nissen
Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician · Bethesda, MD
Alexander Nissen is a thoracic surgery (cardiothoracic vascular surgery) physician with a practice address in Bethesda, Maryland, and NPI 1730540386, issued on Mar 10, 2016. Check the license on the Maryland Board of Physicians; the Medicare figures below come from public CMS files.
- Name
- Alexander Nissen
- Primary taxonomy
- Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician 208G00000X
- License number
- 0101263081 VA
Self-reported in NPPES; status is on the state search - Practice location
- Walter Reed National Military Medical Center, Bethesda, MD 20889
- Phone
- (703) 401-2509
- Enumerated
- Mar 10, 2016
- Record last updated
- Aug 20, 2025
- Medicare enrollment
- Enrolled (PECOS I20250809000547); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest thoracic surgery (cardiothoracic vascular surgery) physician records → All 92 in Maryland → Look up another NPI →
Also registered at Walter Reed National Military Medical Center
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Simone Bernstein, MDPsychiatry Physician1265093710
- Jessica Bicher, MDPhysical Medicine & Rehabilitation Physician1891103495
- Clayton Brittingham, DOVascular & Interventional Radiology Physician1568825248
- Debra Buckland-Coffey, M.D.Internal Medicine Physician1053475707
- Gregory Chesnut, M.D.Urology Physician1265752547
- Mary Collins, D.O.Obstetrics & Gynecology Physician1821446196
Verify Alexander Nissen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMaryland Board of PhysiciansCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Industry payments in 2024: $12,701.60
21 payments; by number, the most common kind was food and beverage; the largest payer was Medtronic, Inc. The 4,047 providers of this specialty with any payment received $7,828.84 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.
Bills Medicare through 2 group practices
- Medstar Heart Institute LLCWashington, DC
- Medstar Medical Group II LLCWashington, DC
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Alexander Nissen among 92 thoracic surgery (cardiothoracic vascular surgery) physician records in Maryland
Alexander Nissen is one of 92 thoracic surgery (cardiothoracic vascular surgery) physician records with a practice address in Maryland. 65% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2016, is newer than 89% of them.
- NPI issued2016 · 89% of these records are older, 8% newer
- In a Medicare fileYes · 65% of these records are
- In the CMS Doctors and Clinicians fileYes · 50% of these records are
- Graduated2016 · median 1996 among the 46 with a school on file
- Record last updated2025 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208G00000X and a Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician providers in Maryland
There are 92 thoracic surgery (cardiothoracic vascular surgery) physician records in Maryland.
All 92 in Maryland → Every provider in Bethesda → Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician nationwide →
The 8 thoracic surgery (cardiothoracic vascular surgery) physician records with the nearest ZIP codes
- Jared Antevil, M.D.Bethesda, MD 208891871578534
- Jonathan Gower, M.D.Bethesda, MD 208891558682054
- Frederick Lough, MDBethesda, MD 208891972545440
- Andrew Marthy, MDBethesda, MD 208891609230176
- Lyndsey Wessels, M.D.Bethesda, MD 208891689054371
- Kathleen Fenton, M.D.Silver Spring, MD 209051609801794
- Nyen Chong, M.D.Silver Spring, MD 209101003011917
- Michael Onwugbufor, M.DSilver Spring, MD 209101881009504
Common questions
What is Alexander Nissen's NPI number?
Alexander Nissen's National Provider Identifier (NPI) is 1730540386, issued on Mar 10, 2016. An NPI identifies a provider in billing; it is not a license.
Where is Alexander Nissen located?
The NPPES record lists a practice address at Walter Reed National Military Medical Center, Bethesda, MD, 20889. Phone: (703) 401-2509. Providers update this record themselves, so call before visiting.
How can I verify Alexander Nissen's license?
Search the Maryland Board of Physicians at https://www.mbp.state.md.us/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
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.