AARON MATTHEW FIELDS MD
NPI 1982896437
Anesthesiology in Dallas, TX
About Aaron Matthew Fields Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
AARON MATTHEW FIELDS MD (NPI 1982896437) is an individual anesthesiology provider in Dallas, Texas, licensed in Texas (Q0255) and active in the NPI registry since August 2007. He is enrolled in Medicare PECOS, is affiliated with Methodist Hospital, and maintains 3 additional practice locations.
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Locations 3
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
Aaron Matthew Fields Md 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
4Medicare enrollment records show Aaron Fields reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Bryan, TX 77802
- Reassigned Medicare billing, Texas enrollment
- 840 clinicians in this Medicare group
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
San Antonio, TX 78258
- Reassigned Medicare billing, Texas enrollment
- 226 clinicians in this Medicare group
Monroe, WI 53566
- Reassigned Medicare billing, Wisconsin enrollment
- 376 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 7
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 3
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Methodist Hospital
Acute Care Hospitals · San Antonio, TXThe Monroe Clinic
Acute Care Hospitals · Monroe, WIMethodist Hospital Stone Oak
Acute Care Hospitals · San Antonio, TXMedicare 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 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
DALLAS, TX 75251
DALLAS, TX 75251
DALLAS, TX 75251
DALLAS, TX 75251
DALLAS, TX 75251
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 Aaron Fields's NPI number?
The NPI number for Aaron Fields is 1982896437. It was assigned to this individual provider in the NPPES registry on August 17, 2007.
Where is Aaron Fields located?
Aaron Fields practices at 12222 Merit Dr Ste 600, Dallas, TX 75251. The listed phone number is (972) 715-5000.
What is Aaron Fields's specialty?
The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.
Is Aaron Fields enrolled in Medicare?
Yes. Aaron Fields 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 Aaron Fields's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Aaron Fields reassigns Medicare benefits to 4 organizations: Austin Anesthesiology Group PLLC (Bryan, TX), U. S. Anesthesia Partners Of Texas, P.A., (Houston, TX), Tejas Anesthesia PLLC (San Antonio, TX) and The Monroe Clinic, Inc. (Monroe, WI). 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 Aaron Fields's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Aaron Fields accept?
Health plans from Baylor Scott and White Health Plan, Blue Cross and Blue Shield of Texas and Oscar Insurance Company list Aaron Fields 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 Aaron Fields affiliated with any hospitals?
According to CMS data, Aaron Fields is affiliated with Methodist Hospital, The Monroe Clinic and Methodist Hospital Stone Oak.
When was this NPI record last updated?
The NPPES record for Aaron Fields was last updated on June 9, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 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.
# Aaron Matthew Fields, MD · NPI 1982896437
Anesthesiology physician in Dallas, Texas. Individual provider, active in the CMS NPPES registry since August 17, 2007.
## Identity
- **NPI:** 1982896437 (Entity type: Individual)
- **Enumerated:** August 17, 2007
- **Primary specialty:** Anesthesiology · taxonomy 207L00000X
- **State license:** Q0255 (Texas)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 12222 MERIT DR STE 600, Dallas, TX 75251-3294
- **Phone:** (972) 715-5000 · **Fax:** (972) 715-9976
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 4 organizations under Medicare reassignment (form CMS-855R): Austin Anesthesiology Group PLLC (NPI 1528326154, Bryan, TX); U. S. Anesthesia Partners Of Texas, P.A., (NPI 1548208564, Houston, TX); Tejas Anesthesia PLLC (NPI 1659027910, San Antonio, TX); The Monroe Clinic, Inc. (NPI 1386720548, Monroe, WI) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Texas Tech University Health Science Center School Of Medicine, class of 2003
## Record status
- **NPPES last updated:** June 9, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1982896437) · Data from the CMS NPPES public registry.