Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Alexander Nissen

Individual provider General Practice Physician · NPI 1730540386

Alexander Nissen is a Cardiac Surgery in Bethesda, Maryland. Qualified in 2016, 10 years ago. Practices with Medstar Medical Group II LLC, a 3,717-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Virginia.

Years since qualifying
10
Licensed in
VA
In the registry since
2016
Specialties on file
2
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Practice location Partly verified

Some contact details are missing from the federal record.

Walter Reed National Military Medical Center 8901 Wisconsin Ave
Bethesda, MD 20889-0004
Phone: (703) 401-2509
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician (primary) Taxonomy 208G00000X · Licence 0101263081 (VA)
General Practice Physician Taxonomy 208D00000X · Licence 0101263081 (VA)

Record details

NPI number1730540386
Entity typeIndividual (Type 1)
GenderMale
Sole proprietorNo
NPI enumeratedMarch 10, 2016
Last updated in NPPESAugust 20, 2025
Certification dateAugust 20, 2025

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyCARDIAC SURGERY
Medical schoolOTHER
Graduated 2016 (10 years in practice)
Group practice Medstar Medical Group Ii Llc — 3717 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations2 on file with Medicare

Other providers in Bethesda