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STEWART ALAN MASTER M.D.
NPI 1104115898
Emergency Medicine in Fort Worth, TX

Active since April 01, 2011PECOS EnrolledAccepts Medicare Assignment
6451 BRENTWOOD STAIR RD STE 200, FORT WORTH, TX 76112(817) 496-9700 Get Directions Write a Review

NPPES record last updated: May 8, 2019. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: May 8, 2019, Jun 11, 2018 (2 updates tracked since 2018).

About Stewart Alan Master M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

STEWART ALAN MASTER M.D. (NPI 1104115898) is an individual emergency medicine provider in Fort Worth, Texas, licensed in Texas (P9397) and active in the NPI registry since April 2011. He is enrolled in Medicare PECOS, is affiliated with Methodist Dallas Medical Center, and is a graduate of University Of Texas Medical School At Houston (2011).

NPPES Registry Identity

NPI1104115898
Entity TypeIndividualMale
Primary Taxonomy207P00000X
Provider Legal NameSTEWART ALAN MASTERCredential: M.D.
Location Address6451 BRENTWOOD STAIR RD STE 200Fort Worth, TX 76112
Mailing Address6451 Brentwood Stair Rd Ste 200Fort Worth, TX 76112-3200
Phone(817) 496-9700
Sole ProprietorNo
Medical School CMSUniversity Of Texas Medical School At HoustonGraduated 2011
Enumeration DateApril 1, 2011
Last NPPES UpdateMay 8, 20192 updates tracked since enumeration
✔ NPI 1104115898 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyEmergency MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207P00000X
License✔ Licensed in TX · P9397
Definition
An emergency physician focuses on the immediate decision making and action necessary to prevent death or any further disability both in the pre-hospital setting by directing emergency medical technicians and in the emergency department. The emergency physician provides immediate recognition, evaluation, care, stabilization and disposition of a generally diversified population of adult and pediatric patients in response to acute illness and injury.
6451 BRENTWOOD STAIR RD STE 200, Fort Worth, TX 76112
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross and Blue Shield of Texas.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

Stewart Alan Master M.d. 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.

PECOS PAC ID648490656
PECOS Enrollment IDI20140925000445
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

4

Medicare enrollment records show Stewart Master reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Texas Physician Resources, LLP
Same address
Emergency Medicine
6451 BRENTWOOD STAIR RD
Fort Worth, TX 76112
  • Reassigned Medicare billing, Texas enrollment
  • 231 clinicians in this Medicare group
NPI 1639413289 (817) 451-4208
Texas Medicine Resources, LLP
Same address
Emergency Medicine
6451 BRENTWOOD STAIR RD, SUITE 200
Fort Worth, TX 76112
  • Reassigned Medicare billing, Texas enrollment
  • 545 clinicians in this Medicare group
NPI 1376581900 (817) 496-9700
University Of Texas Southwestern Medical Center At Dallas
6.0 mi
Orthopaedic Surgery
800 W RANDOL MILL RD
Arlington, TX 76012
  • Reassigned Medicare billing, Texas enrollment
  • 5,299 clinicians in this Medicare group
NPI 1689987851 (214) 645-0624
Texas Emergency Medicine Group, LLP
83 mi
Emergency Medicine
1301 MONTGOMERY RD
Graham, TX 76450
  • Reassigned Medicare billing, Texas enrollment
  • 57 clinicians in this Medicare group
NPI 1134774722 (817) 507-0796

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.

Emergency department visit with high level of medical decision making 99285
An emergency department visit for severe conditions is when you urgently seek medical help due to serious health issues. These could be severe injuries, breathing problems, unbearable pain, or sudden severe illness. Doctors and nurses will provide immediate care to stabilize your condition.
173 services167 patients
Emergency department visit with moderate level of medical decision making 99284
An emergency department visit for a high-severity issue means you're experiencing a serious health problem that needs immediate attention. This could be a severe injury, serious illness, or life-threatening condition. Medical professionals will provide urgent care to stabilize your condition.
23 services23 patients
Critical care, first 30-74 minutes 99291
Critical care involves immediate and constant attention by a team of specially-trained health professionals. It's for patients with life-threatening conditions, requiring first 30-74 minutes of intense monitoring and treatment.
11 services11 patients

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Methodist Dallas Medical Center

Acute Care Hospitals · Dallas, TX
3/5 CMS rating
OwnershipVoluntary non-profit - Other
CMS Certification Number450051
Location1441 North Beckley AvenueDallas, TX 75203 · Dallas County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 76112 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$87.20 typical visit price
range $56.47 – $171.07
Typical copayment $21.80 (range $14.11 – $42.76)
Most-billed visit code 99203
Established Patient
$99.68 typical visit price
range $18.18 – $139.68
Typical copayment $24.92 (range $4.54 – $34.92)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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.

NATHANIEL GRAHAM LANE M.D.
Emergency Medicine
6451 BRENTWOOD STAIR RD STE 200
FORT WORTH, TX 76112
Tarrant County (720) 201-9397
TORRENCE TRAN MD
Emergency Medicine
6451 BRENTWOOD STAIR RD STE 200
FORT WORTH, TX 76112
Tarrant County (817) 504-2124
DR. DEVEN SINGH BHATIA MD
Emergency Medicine
6451 BRENTWOOD STAIR RD STE 200
FORT WORTH, TX 76112
Tarrant County (214) 345-4733
DR. DAVIS WILLMANN
Emergency Medicine
6451 BRENTWOOD STAIR RD STE 200
FORT WORTH, TX 76112
Tarrant County (817) 496-9700
DR. ANDREW W. CHUNG MD, FS
Emergency Medicine
6451 BRENTWOOD STAIR RD STE 200
FORT WORTH, TX 76112
Tarrant County (817) 496-9700
DR. RYAN WYATT M.D.
General Practice
6451 BRENTWOOD STAIR RD STE 200
FORT WORTH, TX 76112
Tarrant County (817) 496-9700
MARK EDWARD TSCHIRHART
Emergency Medicine
6451 BRENTWOOD STAIR RD STE 200
FORT WORTH, TX 76112
Tarrant County (817) 496-9700
SHELLY DOMADIA SAHA MD
Emergency Medicine
6451 BRENTWOOD STAIR RD STE 200
FORT WORTH, TX 76112
Tarrant County (817) 496-9700

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 Stewart Master's NPI number?

The NPI number for Stewart Master is 1104115898. It was assigned to this individual provider in the NPPES registry on April 1, 2011.

Where is Stewart Master located?

Stewart Master practices at 6451 Brentwood Stair Rd Ste 200, Fort Worth, TX 76112. The listed phone number is (817) 496-9700.

What is Stewart Master's specialty?

The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.

Is Stewart Master enrolled in Medicare?

Yes. Stewart Master 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 Stewart Master's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Stewart Master reassigns Medicare benefits to 4 organizations: Texas Physician Resources, LLP (Fort Worth, TX), Texas Medicine Resources, LLP (Fort Worth, TX), University Of Texas Southwestern Medical Center At Dallas (Arlington, TX) and Texas Emergency Medicine Group, LLP (Graham, TX). 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 Stewart Master's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Stewart Master accept?

Health plans from Blue Cross and Blue Shield of Texas list Stewart Master 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 Stewart Master affiliated with any hospitals?

According to CMS data, Stewart Master is affiliated with Methodist Dallas Medical Center.

When was this NPI record last updated?

The NPPES record for Stewart Master was last updated on May 8, 2019. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.