DR. JOHN M. MACKAY JR. M.D.
NPI 1851380810
Emergency Medicine in El Paso, TX

Active since October 20, 2005PECOS EnrolledAccepts Medicare Assignment
4815 ALAMEDA AVE, EL PASO, TX 79905(915) 521-7415(915) 521-7920 Get Directions Write a Review

NPPES record last updated: November 8, 2023. Verified against the NPPES registry weekly; last sync: July 26, 2026.

About Dr. John M. Mackay Jr. M.d. NPPES

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

DR. JOHN M. MACKAY JR. M.D. (NPI 1851380810) is an individual emergency medicine provider in El Paso, Texas, licensed in Texas (J4898) and active in the NPI registry since October 2005. He is enrolled in Medicare PECOS, is affiliated with The Hospitals Of Providence - East Campus, and is a graduate of Medical College Of Ohio (1984).

NPPES Registry Identity

NPI1851380810
Entity TypeIndividualMale
Primary Taxonomy207P00000X
Provider Legal NameDR. JOHN M. MACKAY JR.Credential: M.D.
Location Address4815 ALAMEDA AVEEl Paso, TX 79905-2705
Mailing Address5130 Gateway Blvd E # 51015El Paso, TX 79905-1608 · (915) 215-4480 · Fax (915) 215-5386
Fax(915) 521-7920
Sole ProprietorNo
Medical School CMSMedical College Of OhioGraduated 1984
Enumeration DateOctober 20, 2005
Last NPPES UpdateNovember 8, 2023
NPPES CertifiedNovember 8, 2023
NPI 1851380810 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 · J4898
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.

4815 ALAMEDA AVE, El Paso, TX 79905

Other Identifiers 2

Medicaid106012102TX
OtherJ4898TX · State License

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

Dr. John M. Mackay Jr. 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 ID7911063938
PECOS Enrollment IDI20090226000647
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.

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.
53 services50 patients
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.
42 services40 patients
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only 93010
A routine electrocardiogram (ECG) with 12 leads is a simple, non-invasive test that records the electrical activity of your heart. It helps in identifying heart conditions by detecting irregularities in your heart rhythms. The results are interpreted and a report is provided.
26 services26 patients

Hospital Affiliations CMS Care Compare

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

The Hospitals Of Providence - East Campus

Acute Care Hospitals · El Paso, TX
3/5 CMS rating
OwnershipProprietary
CMS Certification Number670047
Location3280 Joe Battle BlvdEl Paso, TX 79938 · El Paso County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 79905 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
$84.92 typical visit price
range $54.84 – $166.88
Typical copayment $21.23 (range $13.71 – $41.72)
Most-billed visit code 99203
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.

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.

Nurse Practitioner (Acute Care)
4815 ALAMEDA AVE
EL PASO, TX 79905
Nurse Anesthetist, Certified Registered
4815 ALAMEDA AVE
EL PASO, TX 79905
Registered Nurse
4815 ALAMEDA AVE
EL PASO, TX 79905
General Acute Care Hospital
4815 ALAMEDA AVE
EL PASO, TX 79905
Nurse Anesthetist, Certified Registered
4815 ALAMEDA AVE
EL PASO, TX 79905
Clinical Nurse Specialist (Women's Health)
4815 ALAMEDA AVE
EL PASO, TX 79905
Internal Medicine
4815 ALAMEDA AVE
EL PASO, TX 79905
Radiology (Diagnostic Radiology)
4815 ALAMEDA AVE
EL PASO, TX 79905

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 John Mackay's NPI number?

The NPI number for John Mackay is 1851380810. It was assigned to this individual provider in the NPPES registry on October 20, 2005.

Where is John Mackay located?

John Mackay practices at 4815 Alameda Ave, El Paso, TX 79905. The listed phone number is (915) 521-7415.

What is John Mackay's specialty?

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

Is John Mackay enrolled in Medicare?

Yes. John Mackay 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 John Mackay accept?

Health plans from Baylor Scott and White Health Plan, Blue Cross and Blue Shield of Texas, CHRISTUS Health Plan, Imperial Insurance Companies, Inc. and Molina Healthcare and 1 other insurer list John Mackay 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 John Mackay affiliated with any hospitals?

According to CMS data, John Mackay is affiliated with The Hospitals Of Providence - East Campus.

When was this NPI record last updated?

The NPPES record for John Mackay was last updated on November 8, 2023. NPI Profile syncs with the weekly NPPES data releases published by CMS.