MARIE K MAYR CRNA
NPI 1922046853
Nurse Anesthetist, Certified Registered in Rockville, MD
About Marie K Mayr Crna NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MARIE K MAYR CRNA (NPI 1922046853) is an individual nurse anesthetist, certified registered in Rockville, Maryland, licensed in Virginia (0024178142) and active in the NPI registry since June 2006. She maintains a secondary practice location in Herndon and is a graduate of Georgetown University School Of Medicine (1993).
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
Other Identifiers 2
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
Marie K Mayr Crna 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
6Medicare enrollment records show Marie Mayr reassigns Medicare billing to 6 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Germantown, MD 20876
- Reassigned Medicare billing, District of Columbia enrollment
- 68 clinicians in this Medicare group
Washington, DC 20016
- Reassigned Medicare billing, District of Columbia enrollment
- 127 clinicians in this Medicare group
Falls Church, VA 22042
- Reassigned Medicare billing, District of Columbia and Virginia enrollments
- 455 clinicians in this Medicare group
Columbia, MD 21046
- Reassigned Medicare billing, District of Columbia enrollment
- 717 clinicians in this Medicare group
Alexandria, VA 22310
- Reassigned Medicare billing, District of Columbia enrollment
- 74 clinicians in this Medicare group
Annapolis, MD 21401
- Reassigned Medicare billing, District of Columbia and Maryland enrollments
- 391 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 6
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 20850 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 20
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 Marie Mayr's NPI number?
The NPI number for Marie Mayr is 1922046853. It was assigned to this individual provider in the NPPES registry on June 3, 2006.
Where is Marie Mayr located?
Marie Mayr practices at 14820 Physicians Ln 242, Rockville, MD 20850. The listed phone number is (301) 838-9606.
What is Marie Mayr's specialty?
The primary specialty registered for this NPI is Nurse Anesthetist, Certified Registered with taxonomy code 367500000X.
Is Marie Mayr enrolled in Medicare?
Yes. Marie Mayr 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 Marie Mayr's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Marie Mayr reassigns Medicare benefits to 6 organizations: Capitol Anesthesia Associates, Ltd (Germantown, MD), Surgical Anesthesia Associates, PLLC (Washington, DC), American Anesthesiology Of Virginia PC (Falls Church, VA), First Colonies Anesthesia Associates, LLC (Columbia, MD), Ambulatory Anesthesia Associates LLC (Alexandria, VA) and 1 more organization, listed in the Medicare section above. 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 Marie Mayr'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 Marie Mayr was last updated on August 10, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 months 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.
# Marie K Mayr, CRNA · NPI 1922046853
Nurse Anesthetist, Certified Registered physician in Rockville, Maryland. Individual provider, active in the CMS NPPES registry since June 3, 2006.
## Identity
- **NPI:** 1922046853 (Entity type: Individual)
- **Enumerated:** June 3, 2006
- **Primary specialty:** Nurse Anesthetist, Certified Registered · taxonomy 367500000X
- **State license:** 0024178142 (Virginia)
- **Sole proprietor:** No
## Practice location
- **Address:** 14820 PHYSICIANS LN, 242, Rockville, MD 20850-3945
- **Phone:** (301) 838-9606
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Bills Medicare through:** 6 organizations under Medicare reassignment (form CMS-855R): Capitol Anesthesia Associates, Ltd (NPI 1194106955, Germantown, MD); Surgical Anesthesia Associates, PLLC (NPI 1811930647, Washington, DC); American Anesthesiology Of Virginia PC (NPI 1417994872, Falls Church, VA); First Colonies Anesthesia Associates, LLC (NPI 1740218767, Columbia, MD); Ambulatory Anesthesia Associates LLC (NPI 1720192230, Alexandria, VA); and 1 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Georgetown University School Of Medicine, class of 1993
## Record status
- **NPPES last updated:** August 10, 2026
- **Other identifiers:** Medicaid 400896100 (MD); Other 601285800
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Source: [NPI Profile](https://npiprofile.com/npi/1922046853) · Data from the CMS NPPES public registry.