MRS. MARY CATHERINE CHALMERS MS
NPI 1265554208
Audiologist in Warrenton, VA
About Mrs. Mary Catherine Chalmers Ms NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MRS. MARY CATHERINE CHALMERS MS (NPI 1265554208) is an individual audiologist in Warrenton, Virginia, licensed in Virginia (2201001174) and active in the NPI registry since April 2007. She is a graduate of Other (2010).
NPPES Registry Identity
Specialties & Licenses
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. Mary Catherine Chalmers Ms 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
3Medicare enrollment records show Mary Chalmers reassigns Medicare billing to 3 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
- 46 clinicians in this Medicare group
Gainesville, VA 20155
- Reassigned Medicare billing, Virginia enrollment
- 4 clinicians in this Medicare group
Manassas, VA 20155
- Reassigned Medicare billing, Virginia enrollment
- 5 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
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 3
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 Mary Chalmers's NPI number?
The NPI number for Mary Chalmers is 1265554208. It was assigned to this individual provider in the NPPES registry on April 3, 2007.
Where is Mary Chalmers located?
Mary Chalmers practices at 550 Hospital Drive, Warrenton, VA 20186. The listed phone number is (540) 347-0505.
What is Mary Chalmers's specialty?
The primary specialty registered for this NPI is Audiologist with taxonomy code 231H00000X.
Is Mary Chalmers enrolled in Medicare?
Yes. Mary Chalmers 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 Mary Chalmers's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Mary Chalmers reassigns Medicare benefits to 3 organizations: Blue Ridge Orthopaedic Associates PC (Warrenton, VA), Mle Pastore, LLC (Gainesville, VA) and Audiology And Hearing Aid Center Of Gainesville, PLLC (Manassas, 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 Mary Chalmers's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for Mary Chalmers was last updated on July 8, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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. Mary Catherine Chalmers, MS · NPI 1265554208
Audiologist provider in Warrenton, Virginia. Individual provider, active in the CMS NPPES registry since April 3, 2007.
## Identity
- **NPI:** 1265554208 (Entity type: Individual)
- **Enumerated:** April 3, 2007
- **Primary specialty:** Audiologist · taxonomy 231H00000X
- **State license:** 2201001174 (Virginia)
- **Sole proprietor:** No
## Practice location
- **Address:** 550 HOSPITAL DRIVE, Warrenton, VA 20186-3027
- **Phone:** (540) 347-0505 · **Fax:** (540) 347-5224
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Bills Medicare through:** 3 organizations under Medicare reassignment (form CMS-855R): Blue Ridge Orthopaedic Associates PC (NPI 1508959701, Warrenton, VA); Mle Pastore, LLC (NPI 1780422410, Gainesville, VA); Audiology And Hearing Aid Center Of Gainesville, PLLC (NPI 1841387016, Manassas, VA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2010
## Record status
- **NPPES last updated:** July 8, 2007
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Source: [NPI Profile](https://npiprofile.com/npi/1265554208) · Data from the CMS NPPES public registry.