Physician Profile
John M. Mackay, M.D.
Unclaimed ProfileAbout Dr. Mackay
John M. Mackay, M.D. is a healthcare provider in El Paso, TX specializing in emergency medicine. John trained at Medical College of Ohio, graduating in 1984. According to Medicare claims data, John cared for 116 Medicare patients across 121 services.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Education & Training
Specialty
Credentials & Licensing
Source: NPPES NPI Registry
Contact Information
- (915) 521-7415
- Email not available
Practice Locations
4815 ALAMEDA AVE
El Paso, TX 79905
Procedures Most Often Billed to Medicare
121 services · 116 patients · 3 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only | Treatment | 93010 |
26 |
| Emergency department visit with moderate level of medical decision making | Office visit | 99284 |
53 |
| Emergency department visit with high level of medical decision making | Office visit | 99285 |
42 |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Other emergency medicines at this location 5
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 2
Clinically related specialties at the same address — the people this provider most likely works alongside.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
More connections — 32 related providers in 4 groups
Other emergency medicines in El Paso 8
Same specialty, same city.
Trained at Medical College of Ohio 8
Other providers in the same specialty who trained at the same institution.
Class of 1984 at Medical College of Ohio 8
Providers who graduated from the same medical school in the same year.
Also performs Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only 8
Providers in TX who bill this service to Medicare most often.
Common questions
What kind of doctor is Dr. Mackay?
Dr. Mackay is an emergency medicine in El Paso, TX. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “EMERGENCY MEDICINE”.
NPI registry
What is Dr. Mackay's address?
Dr. Mackay is listed at 4815 ALAMEDA AVE, El Paso, TX 79905. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How can I make an appointment with Dr. Mackay?
The number on file is (915) 521-7415. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Dr. Mackay's NPI number?
Dr. Mackay's National Provider Identifier is 1851380810. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Where did Dr. Mackay train?
Dr. Mackay attended Medical College of Ohio, graduating in 1984. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Mackay been practicing?
Dr. Mackay has 42 years experience. Calculated from a graduation year of 1984, reported in the CMS National Downloadable File.
CMS public data
What procedures does Dr. Mackay perform?
According to Medicare billing data, Dr. Mackay provides treatments such as routine electrocardiogram using at least 12 leads with interpretation and report only, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Dr. Mackay confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Mackay. If this is you, claiming it is free.
Guide.md
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.