STEPHEN R MCMAHON MD
NPI 1225098957
Internal Medicine in Kaufman, TX

Active since March 25, 2006PECOS EnrolledAccepts Medicare Assignment
75.27/100
CMS Quality Rating
850 ED HALL DR, KAUFMAN, TX 75142(972) 932-7349(972) 932-7273 Get Directions Write a Review

NPPES record last updated: December 23, 2020. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Stephen R Mcmahon Md NPPES

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

STEPHEN R MCMAHON MD (NPI 1225098957) is an individual internal medicine provider in Kaufman, Texas, licensed in Texas (E6514) and active in the NPI registry since March 2006. He is enrolled in Medicare PECOS, is affiliated with Texas Health Presbyterian Hospital Kaufman, and is a graduate of University Of Texas Southwestern Medical School At Dallas (1976).

NPPES Registry Identity

NPI1225098957
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameSTEPHEN R MCMAHONCredential: MD
Location Address850 ED HALL DRKaufman, TX 75142-1861
Mailing Address850 Ed Hall DrKaufman, TX 75142-1861 · (972) 932-7349 · Fax (972) 932-7273
Fax(972) 932-7273
Sole ProprietorNo
Medical School CMSUniversity Of Texas Southwestern Medical School At DallasGraduated 1976
Enumeration DateMarch 25, 2006
Last NPPES UpdateDecember 23, 2020
NPPES CertifiedDecember 23, 2020
NPI 1225098957 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License Licensed in TX · E6514
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
850 ED HALL DR, Kaufman, TX 75142

Other Identifiers 3

Medicaid156329802TX
Other680016195TX · Medicare Railroad
Medicaid156329801TX

Accepted Insurance

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

Enrolled in Medicare and accepts Medicare assignment

Stephen R Mcmahon 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.

PECOS PAC ID5496763260
PECOS Enrollment IDI20090325000521
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.

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.

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232
Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.
237 services110 patients
Hospital discharge day management, more than 30 minutes 99239
Hospital discharge day management over 30 minutes involves a detailed process to ensure a smooth transition from hospital to home. It includes final examinations, discussion of your hospital stay, post-discharge instructions, and coordinating follow-up care.
138 services126 patients
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 99222
Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.
43 services41 patients

Hospital Affiliations CMS Care Compare

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

Texas Health Presbyterian Hospital Kaufman

Acute Care Hospitals · Kaufman, TX
OwnershipVoluntary non-profit - Private
CMS Certification Number450292
Location850 Ed HallKaufman, TX 75142 · Kaufman County
Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 75142 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
$126.40 typical visit price
range $54.84 – $166.88
Typical copayment $31.60 (range $13.71 – $41.72)
Most-billed visit code 99204
Established Patient
$97.05 typical visit price
range $17.52 – $136.11
Typical copayment $24.26 (range $4.38 – $34.02)
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.

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.

75.27/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality68.07
Promoting Interoperability100
Improvement Activities40
Cost49.5

Referred Medical Equipment & Supplies CMS DME claims 3

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Portable gaseous oxygen system, rental; includes portable container, regulator, flowmeter, humidifier, cannula or mask, and tubing E0431
DME-Oxygen and Supplies · category DC000N
2 suppliers70 claims70 services$14.69 avg. paid by Medicare
Home ventilator, any type, used with non-invasive interface, (e.g., mask, chest shell) E0466
DME-Other DME · category DE005N
3 suppliers13 claims13 services$916.82 avg. paid by Medicare
Oxygen concentrator, single delivery port, capable of delivering 85 percent or greater oxygen concentration at the prescribed flow rate E1390
DME-Oxygen and Supplies · category DC002N
3 suppliers78 claims78 services$64.91 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES 11

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Internal Medicine
850 ED HALL DR
KAUFMAN, TX 75142
Nurse Anesthetist, Certified Registered
850 ED HALL DR
KAUFMAN, TX 75142
Family Medicine
850 ED HALL DR
KAUFMAN, TX 75142
Radiology (Diagnostic Radiology)
850 ED HALL DR
KAUFMAN, TX 75142
Nurse Practitioner (Acute Care)
850 ED HALL DR
KAUFMAN, TX 75142
Internal Medicine
850 ED HALL DR
KAUFMAN, TX 75142
Emergency Medicine
850 ED HALL DR
KAUFMAN, TX 75142
Emergency Medicine
850 ED HALL DR
KAUFMAN, TX 75142

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 Stephen Mcmahon's NPI number?

The NPI number for Stephen Mcmahon is 1225098957. It was assigned to this individual provider in the NPPES registry on March 25, 2006.

Where is Stephen Mcmahon located?

Stephen Mcmahon practices at 850 Ed Hall Dr, Kaufman, TX 75142. The listed phone number is (972) 932-7349.

What is Stephen Mcmahon's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Stephen Mcmahon enrolled in Medicare?

Yes. Stephen Mcmahon 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.

What insurance does Stephen Mcmahon 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 1 other insurer list Stephen Mcmahon 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 Stephen Mcmahon affiliated with any hospitals?

According to CMS data, Stephen Mcmahon is affiliated with Texas Health Presbyterian Hospital Kaufman.

When was this NPI record last updated?

The NPPES record for Stephen Mcmahon was last updated on December 23, 2020. 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.