MRS. MACKENZIE HAMILTON GLASSMACHER FNP-BC
NPI 1477152866
Nurse Practitioner - Family in Warrenton, VA
About Mrs. Mackenzie Hamilton Glassmacher Fnp-bc NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MRS. MACKENZIE HAMILTON GLASSMACHER FNP-BC (NPI 1477152866) is an individual family provider in Warrenton, Virginia, licensed in Virginia (0024180139) and active in the NPI registry since October 2020. She is enrolled in Medicare PECOS, maintains 3 additional practice locations, and is a graduate of Other (2020).
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Locations 3
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Mrs. Mackenzie Hamilton Glassmacher Fnp-bc is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
5Medicare enrollment records show Mackenzie Glassmacher reassigns Medicare billing to 5 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Warrenton, VA 20186
- Reassigned Medicare billing, Virginia enrollment
- 20 clinicians in this Medicare group
Leesburg, VA 20176
- Reassigned Medicare billing, District of Columbia enrollment
- 134 clinicians in this Medicare group
Springfield, VA 22152
- Reassigned Medicare billing, District of Columbia and Virginia enrollments
- Also billed through NPI 1275886418 (Virginia)
- 160 clinicians in this Medicare group
Vienna, VA 22180
- Reassigned Medicare billing, District of Columbia and Virginia enrollments
- 146 clinicians in this Medicare group
Arlington, VA 22203
- Reassigned Medicare billing, District of Columbia and Virginia enrollments
- 1,534 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 5
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 20186 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 11
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Mackenzie Glassmacher's NPI number?
The NPI number for Mackenzie Glassmacher is 1477152866. It was assigned to this individual provider in the NPPES registry on October 19, 2020.
Where is Mackenzie Glassmacher located?
Mackenzie Glassmacher practices at 75 W Lee Hwy, Warrenton, VA 20186. The listed phone number is (540) 351-0662.
What is Mackenzie Glassmacher's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.
Is Mackenzie Glassmacher enrolled in Medicare?
Yes. Mackenzie Glassmacher is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Mackenzie Glassmacher's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Mackenzie Glassmacher reassigns Medicare benefits to 5 organizations: Dmv Urgent Care LLC (Warrenton, VA), Commonwealth Emergency Physicians PC (Leesburg, VA), Inova Health Care Services (Springfield, VA), Inova Ucc LLC (Vienna, VA) and Privia Medical Group, LLC (Arlington, VA). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Mackenzie Glassmacher's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Mackenzie Glassmacher accept?
Health plans from Oscar Health list Mackenzie Glassmacher as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
When was this NPI record last updated?
The NPPES record for Mackenzie Glassmacher was last updated on February 4, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Mrs. Mackenzie Hamilton Glassmacher, FNP-BC · NPI 1477152866
Family physician in Warrenton, Virginia. Individual provider, active in the CMS NPPES registry since October 19, 2020.
## Identity
- **NPI:** 1477152866 (Entity type: Individual)
- **Enumerated:** October 19, 2020
- **Primary specialty:** Nurse Practitioner - Family · taxonomy 363LF0000X
- **State license:** 0024180139 (Virginia)
- **Sole proprietor:** No
## Practice location
- **Address:** 75 W LEE HWY, Warrenton, VA 20186-2149
- **Phone:** (540) 351-0662
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 5 organizations under Medicare reassignment (form CMS-855R): Dmv Urgent Care LLC (NPI 1689539975, Warrenton, VA); Commonwealth Emergency Physicians PC (NPI 1598723082, Leesburg, VA); Inova Health Care Services (NPI 1043563257, Springfield, VA); Inova Ucc LLC (NPI 1508592114, Vienna, VA); Privia Medical Group, LLC (NPI 1013042480, Arlington, VA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2020
## Record status
- **NPPES last updated:** February 4, 2024
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Source: [NPI Profile](https://npiprofile.com/npi/1477152866) · Data from the CMS NPPES public registry.