JAMES WELDON KARR III CRNA
NPI 1689958613
Nurse Anesthetist, Certified Registered in Houston, TX
About James Weldon Karr Iii Crna NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
JAMES WELDON KARR III CRNA (NPI 1689958613) is an individual nurse anesthetist, certified registered in Houston, Texas, licensed in Texas (AP121427) and active in the NPI registry since October 2011. He is affiliated with Houston Methodist Willowbrook Hospital and is a graduate of Other (2007).
NPPES Registry Identity
Specialties & Licenses
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
James Weldon Karr Iii 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 Reassignment
Medicare enrollment records show James Karr reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Houston, TX 77042
- Reassigned Medicare billing, Texas enrollment
- Medicare enrollment name: U S Anesthesia Partners Of Texas, PA
- 3,804 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 4
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.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Houston Methodist Willowbrook Hospital
Acute Care Hospitals · Houston, TXPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 77042 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
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.
HOUSTON, TX 77042
HOUSTON, TX 77042
HOUSTON, TX 77042
HOUSTON, TX 77042
HOUSTON, TX 77042
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 James Karr's NPI number?
The NPI number for James Karr is 1689958613. It was assigned to this individual provider in the NPPES registry on October 10, 2011.
Where is James Karr located?
James Karr practices at 1500 Citywest Blvd Ste. 300, Houston, TX 77042. The listed phone number is (713) 620-4000.
What is James Karr's specialty?
The primary specialty registered for this NPI is Nurse Anesthetist, Certified Registered with taxonomy code 367500000X.
Is James Karr enrolled in Medicare?
Yes. James Karr 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 organization bills Medicare for James Karr's services?
According to the CMS Revalidation Reassignment List (October 2026 release), James Karr reassigns Medicare benefits to U. S. Anesthesia Partners Of Texas, P.A., (Houston, TX). The 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 James Karr's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does James Karr accept?
Health plans from Blue Cross and Blue Shield of Texas and Oscar Insurance Company list James Karr 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.
Is James Karr affiliated with any hospitals?
According to CMS data, James Karr is affiliated with Houston Methodist Willowbrook Hospital.
When was this NPI record last updated?
The NPPES record for James Karr was last updated on August 25, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.
# James Weldon Karr III, CRNA · NPI 1689958613
Nurse Anesthetist, Certified Registered physician in Houston, Texas. Individual provider, active in the CMS NPPES registry since October 10, 2011.
## Identity
- **NPI:** 1689958613 (Entity type: Individual)
- **Enumerated:** October 10, 2011
- **Primary specialty:** Nurse Anesthetist, Certified Registered · taxonomy 367500000X
- **State license:** AP121427 (Texas)
- **Sole proprietor:** No
## Practice location
- **Address:** 1500 CITYWEST BLVD, STE. 300, Houston, TX 77042
- **Phone:** (713) 620-4000 · **Fax:** (713) 458-4229
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Bills Medicare through:** U. S. Anesthesia Partners Of Texas, P.A., (NPI 1548208564, Houston, TX), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2007
## Record status
- **NPPES last updated:** August 25, 2020
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Source: [NPI Profile](https://npiprofile.com/npi/1689958613) · Data from the CMS NPPES public registry.