JAMES MARQUART
NPI 1376514893
Nurse Anesthetist, Certified Registered in Phoenix, AZ
About James Marquart NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
JAMES MARQUART (NPI 1376514893) is an individual nurse anesthetist, certified registered in Phoenix, Arizona, licensed in Arizona (CRNA0431) and active in the NPI registry since February 2006. He maintains a secondary practice location in Ashland and is a graduate of Other (1996).
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 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
James Marquart 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 James Marquart reassigns Medicare billing to 6 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Phoenix, AZ 85020
- Reassigned Medicare billing, Arizona enrollment
- 174 clinicians in this Medicare group
Mesa, AZ 85206
- Reassigned Medicare billing, Arizona enrollment
- 298 clinicians in this Medicare group
Ashland, OR 97520
- Reassigned Medicare billing, Oregon enrollment
- 2 clinicians in this Medicare group
Medford, OR 97504
- Reassigned Medicare billing, Oregon enrollment
- 5 clinicians in this Medicare group
Milwaukie, OR 97222
- Reassigned Medicare billing, Oregon enrollment
- 183 clinicians in this Medicare group
Brighton, MI 48114
- Reassigned Medicare billing, Arizona enrollment
- 370 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 3
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 85015 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.
Reported Quality Measures
Other Providers at the Same Location NPPES 13
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
PHOENIX, AZ 85015
PHOENIX, AZ 85015
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 Marquart's NPI number?
The NPI number for James Marquart is 1376514893. It was assigned to this individual provider in the NPPES registry on February 1, 2006.
Where is James Marquart located?
James Marquart practices at 6501 N 19th Ave, Phoenix, AZ 85015. The listed phone number is (602) 795-6020.
What is James Marquart's specialty?
The primary specialty registered for this NPI is Nurse Anesthetist, Certified Registered with taxonomy code 367500000X.
Is James Marquart enrolled in Medicare?
Yes. James Marquart 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 James Marquart's services?
According to the CMS Revalidation Reassignment List (October 2026 release), James Marquart reassigns Medicare benefits to 6 organizations: Guide Anesthesia Az LLC (Phoenix, AZ), Ascend Anesthesia LLC (Mesa, AZ), Marquart Anesthesia Services PC (Ashland, OR), Southern Oregon Anesthesia Partners LLC (Medford, OR), Anesthesia Associates Northwest LLC (Milwaukie, OR) 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 James Marquart's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does James Marquart accept?
Health plans from Blue Cross Blue Shield of Arizona and Moda Health Plan, Inc. list James Marquart 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 James Marquart was last updated on May 8, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 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.
# James Marquart · NPI 1376514893
Nurse Anesthetist, Certified Registered physician in Phoenix, Arizona. Individual provider, active in the CMS NPPES registry since February 1, 2006.
## Identity
- **NPI:** 1376514893 (Entity type: Individual)
- **Enumerated:** February 1, 2006
- **Primary specialty:** Nurse Anesthetist, Certified Registered · taxonomy 367500000X
- **State license:** CRNA0431 (Arizona)
- **Sole proprietor:** No
## Practice location
- **Address:** 6501 N 19TH AVE, Phoenix, AZ 85015-1646
- **Phone:** (602) 795-6020
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Bills Medicare through:** 6 organizations under Medicare reassignment (form CMS-855R): Guide Anesthesia Az LLC (NPI 1649164849, Phoenix, AZ); Ascend Anesthesia LLC (NPI 1407642945, Mesa, AZ); Marquart Anesthesia Services PC (NPI 1225842503, Ashland, OR); Southern Oregon Anesthesia Partners LLC (NPI 1366272163, Medford, OR); Anesthesia Associates Northwest LLC (NPI 1548281751, Milwaukie, OR); and 1 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 1996
## Record status
- **NPPES last updated:** May 8, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1376514893) · Data from the CMS NPPES public registry.