MARY KATHARINE HARRIS CRNA
NPI 1558894097
Nurse Anesthetist, Certified Registered in Round Rock, TX
About Mary Katharine Harris Crna NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MARY KATHARINE HARRIS CRNA (NPI 1558894097) is an individual nurse anesthetist, certified registered in Round Rock, Texas, licensed in Texas (AP138025) and active in the NPI registry since April 2017. She maintains a secondary practice location in Fort Myers and is a graduate of Other (2017).
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
Other Identifiers 1
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
Mary Katharine Harris 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
2Medicare enrollment records show Mary Harris reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Round Rock, TX 78664
- Reassigned Medicare billing, Texas enrollment
- 100 clinicians in this Medicare group
Fort Myers, FL 33907
- Reassigned Medicare billing, Florida enrollment
- 118 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 2
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 78664 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.
ROUND ROCK, TX 78664
ROUND ROCK, TX 78664
ROUND ROCK, TX 78664
ROUND ROCK, TX 78664
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 Harris's NPI number?
The NPI number for Mary Harris is 1558894097. It was assigned to this individual provider in the NPPES registry on April 11, 2017.
Where is Mary Harris located?
Mary Harris practices at 2000 S Mays St Ste 201, Round Rock, TX 78664. The listed phone number is (512) 244-4272.
What is Mary Harris's specialty?
The primary specialty registered for this NPI is Nurse Anesthetist, Certified Registered with taxonomy code 367500000X.
Is Mary Harris enrolled in Medicare?
Yes. Mary Harris 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 Harris's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Mary Harris reassigns Medicare benefits to 2 organizations: Mark Malone MD PA (Round Rock, TX) and Anesthesia & Pain Consultants Of SW Fl (Fort Myers, FL). 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 Harris's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Mary Harris accept?
Health plans from Ambetter from Arizona Complete Health, Ambetter from Arkansas Health & Wellness, Ambetter from Louisiana Healthcare Connections, Ambetter from Superior HealthPlan and Ambetter of Oklahoma and 6 other insurers list Mary Harris 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 Mary Harris was last updated on January 20, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.
# Mary Katharine Harris, CRNA · NPI 1558894097
Nurse Anesthetist, Certified Registered physician in Round Rock, Texas. Individual provider, active in the CMS NPPES registry since April 11, 2017.
## Identity
- **NPI:** 1558894097 (Entity type: Individual)
- **Enumerated:** April 11, 2017
- **Primary specialty:** Nurse Anesthetist, Certified Registered · taxonomy 367500000X
- **State license:** AP138025 (Texas)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 2000 S MAYS ST STE 201, Round Rock, TX 78664-7580
- **Phone:** (512) 244-4272
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Bills Medicare through:** 2 organizations under Medicare reassignment (form CMS-855R): Mark Malone MD PA (NPI 1407057250, Round Rock, TX); Anesthesia & Pain Consultants Of SW Fl (NPI 1609843275, Fort Myers, FL) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2017
## Record status
- **NPPES last updated:** January 20, 2021
- **Other identifiers:** Medicaid 216911203 (TX)
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Source: [NPI Profile](https://npiprofile.com/npi/1558894097) · Data from the CMS NPPES public registry.