Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

MS. Mary Choisser Langford, ACNP

Individual provider Acute Care Nurse Practitioner · NPI 1992702617

MS. Mary Choisser Langford, ACNP is a Nurse Practitioner in Fairfax, Virginia. Qualified in 1998, 28 years ago. Practices with Medstar Heart Institute LLC, a 311-clinician group and accepts Medicare assignment. Licensed in Virginia.

Years since qualifying
28
Licensed in
VA
In the registry since
2005
What do these letters mean?
ACNP — Acute Care Nurse Practitioner
A nurse practitioner who treats acutely ill patients, usually in hospital.

See every abbreviation used in this directory →

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Practice location Address checks out

12011 Lee Jackson Hwy
Fairfax, VA 22033-3310 Not confirmed with CMS for 13 years — call before visiting
Phone: (703) 383-5495
Fax: (703) 383-5489
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Acute Care Nurse Practitioner (primary) Taxonomy 363LA2100X · Licence 0024132613 (VA)

Record details

NPI number1992702617
Entity typeIndividual (Type 1)
GenderFemale
Credentials ACNP
Sole proprietorNo
NPI enumeratedJuly 7, 2005
Last updated in NPPESDecember 6, 2012

Medicare enrollment

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

Medicare specialtyNURSE PRACTITIONER
Medical schoolOTHER
Graduated 1998 (28 years in practice)
Group practice Medstar Heart Institute Llc — 311 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations5 on file with Medicare

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients69
Services billed 148 a service is one billed item, such as a visit, a test or a procedure
Average patient age81

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Payments from drug and device companies, 2025

Drug and device makers are required by federal law (the Physician Payments Sunshine Act) to report what they pay or give to clinicians, and CMS publishes the reports as Open Payments. This is the 2025 program year. A report is a record of a payment, not an allegation of anything, and many are small items such as meals. Only general payments are listed here; research payments and ownership or investment interests are reported separately by CMS and are not shown.

Food and Beverage $288 6 payments · a meal or drink at a meeting or visit, not a fee

Each amount is the sum of what companies reported for that kind of payment in 2025, rounded to the dollar. Not all of it is income to the clinician: a meal is not a fee, a charitable contribution goes to a charity, and a royalty or an acquisition payment is not a salary.

Check a report, or dispute one, at the source in CMS’s own tool, Open Payments. Corrections go through CMS’s dispute process. This site removes a home address on request and asks for no proof, because that is privacy; it will not remove an accurate payment report on request, because that is a statutory public disclosure.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at Medstar Heart Institute LLC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 311 clinicians in the practice; 12 are shown here.

Other providers in Fairfax