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

Mrs. Mackenzie Hamilton Glassmacher, FNP-BC

Individual provider Family Nurse Practitioner · NPI 1477152866

Mrs. Mackenzie Hamilton Glassmacher, FNP-BC is a Nurse Practitioner in Warrenton, Virginia. Qualified in 2020, 6 years ago. Practices with Privia Medical Group, LLC, a 1,518-clinician group, works from 4 locations and accepts Medicare assignment. Licensed in Virginia.

Years since qualifying
6
Licensed in
VA
In the registry since
2020
What do these letters mean?
FNP-BC — Family Nurse Practitioner, Board Certified
A family nurse practitioner certified by the ANCC.

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Practice location Address checks out

75 W Lee Hwy
Warrenton, VA 20186-2149
Phone: (540) 351-0662
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Directions in Google Maps · Apple Maps · OpenStreetMap

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (3)

  • 2501 Parkers Ln, Alexandria, VA 22306-3209 — (703) 664-7000
  • 4600 Lee Hwy Ste C, Arlington, VA 22207-3419 — (571) 492-3080
  • 24801 Pinebrook Rd Ste 110, Chantilly, VA 20152-4113 — (703) 722-2500

Specialties & licences

Family Nurse Practitioner (primary) Taxonomy 363LF0000X · Licence 0024180139 (VA)

Record details

NPI number1477152866
Entity typeIndividual (Type 1)
GenderFemale
Credentials FNP-BC
Sole proprietorNo
NPI enumeratedOctober 19, 2020
Last updated in NPPESFebruary 4, 2024
Certification dateFebruary 4, 2024

Medicare enrollment

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

Medicare specialtyNURSE PRACTITIONER
Medical schoolOTHER
Graduated 2020 (6 years in practice)
Group practice Privia Medical Group, Llc — 1518 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 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 patients150
Services billed 314 a service is one billed item, such as a visit, a test or a procedure
Average patient age74

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.

Colleagues at Privia Medical Group, LLC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 1518 clinicians in the practice; 12 are shown here.

Other providers in Warrenton