Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mrs. Mary K. Buchan, NP

Nurse Practitioner in Reston, VA · enumerated 2011.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1932491073

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Registry record

Entity type Individual (Type 1)

Name Mrs. Mary K. Buchan

Credential NP

Sex Female

Practice address 12018 Sunrise Valley Dr, Reston, VA, 20191

Phone (571) 262-5200

Enumeration date May 9, 2011

Last updated in NPPES May 17, 2024

Taxonomy & licenses

363LF0000X Family Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 0024169310 (VA) Secondary

363L00000X Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 0024169310 (VA) Primary

NP · Nurse Practitioner: An advanced practice registered nurse with graduate training, licensed to diagnose and treat, often with prescriptive authority. About the NP credential

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

Is NPI 1932491073 active?

Yes, as of the latest NPPES snapshot, NPI 1932491073 is active (record last updated 2024-05-17).

How do I verify Mary Buchan's NPI record?

Cross-check NPI 1932491073 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Other providers at this practice address

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Thomas Sullivan Family Medicine Physician · Reston, VA NPI 1295742419 Sandra Nichols Health Maintenance Organization · Reston, VA NPI 1780967232 Optum Palliative and Hospice Care Chronic Disease Hospital · Reston, VA NPI 1073984142 Emily Ollis Family Nurse Practitioner · Reston, VA NPI 1366807539 Compassus Op of Virginia LLC Community Based Hospice Care Agency · Reston, VA NPI 1043754708 Linda Duty Nurse Practitioner · Reston, VA NPI 1548767874 Lindsay Keene Nurse Practitioner · Reston, VA NPI 1174015614 Lois Penn Family Nurse Practitioner · Reston, VA NPI 1861955031

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-05-17.