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DANIEL ALEXANDER MACKAY II MD
NPI 1962450916
Internal Medicine in Dallas, TX

Active since May 04, 2006PECOS Enrolled
17080 DALLAS PKWY, DALLAS, TX 75248(512) 680-9300 Get Directions Write a Review

NPPES record last updated: April 11, 2018. Verified against the NPPES registry weekly; last sync: November 01, 2026.

About Daniel Alexander Mackay Ii Md NPPES

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

DANIEL ALEXANDER MACKAY II MD (NPI 1962450916) is an individual internal medicine provider in Dallas, Texas, licensed in Texas (J7562) and active in the NPI registry since May 2006. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1962450916
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameDANIEL ALEXANDER MACKAY IICredential: MD
Location Address17080 DALLAS PKWYDallas, TX 75248-1968
Mailing Address609 Furlong DrAustin, TX 78746-4128 · (512) 680-9300
Phone(512) 680-9300
Sole ProprietorYes
Enumeration DateMay 4, 2006
Last NPPES UpdateApril 11, 2018
✔ NPI 1962450916 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 · J7562
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.
17080 DALLAS PKWY, Dallas, TX 75248
Open in Google Maps ↗

Other Identifiers 1

Medicaid104413303TX

Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Oscar Insurance Company.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Daniel Alexander Mackay Ii Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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

2

Medicare enrollment records show Daniel Mackay reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Total MD Physicians Group, PLLC
188 mi
Family Medicine
8300 N LAMAR BLVD STE 200A
Austin, TX 78753
  • Reassigned Medicare billing, Texas enrollment
  • 198 clinicians in this Medicare group
NPI 1982031852 (512) 782-9312
Longhorn Emergency Medical Associates PA
193 mi
Emergency Medicine
919 E 32ND ST
Austin, TX 78705
  • Reassigned Medicare billing, Texas enrollment
  • 547 clinicians in this Medicare group
NPI 1649669672 (925) 251-6901

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 75248 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
$131.01 typical visit price
range $57.18 – $172.86
Typical copayment $32.75 (range $14.29 – $43.21)
Most-billed visit code 99204
Established Patient
$100.80 typical visit price
range $18.48 – $141.20
Typical copayment $25.20 (range $4.62 – $35.30)
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.

Referred Medical Equipment & Supplies CMS DME claims 14

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

Tubing with integrated heating element for use with positive airway pressure device A4604
DME-Other DME · category DE001N
5 suppliers71 claims71 services$35.30 avg. paid by Medicare
Full face mask used with positive airway pressure device, each A7030
DME-Other DME · category DE001N
14 suppliers87 claims87 services$85.84 avg. paid by Medicare
Face mask interface, replacement for full face mask, each A7031
DME-Other DME · category DE001N
12 suppliers81 claims205 services$31.94 avg. paid by Medicare
Cushion for use on nasal mask interface, replacement only, each A7032
DME-Other DME · category DE001N
5 suppliers41 claims235 services$18.77 avg. paid by Medicare
Pillow for use on nasal cannula type interface, replacement only, pair A7033
DME-Other DME · category DE001N
3 suppliers34 claims203 services$14.18 avg. paid by Medicare
Nasal interface (mask or cannula type) used with positive airway pressure device, with or without head strap A7034
DME-Other DME · category DE001N
10 suppliers80 claims80 services$54.76 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 4

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

J & M DIAGNOSTICS, LLC
Clinical Medical Laboratory
17080 DALLAS PKWY
DALLAS, TX 75248
Dallas County (214) 390-5655
DR. EDGAR HOOD MCELROY III DDS
Dentist (General Practice)
17080 DALLAS PKWY
DALLAS, TX 75248
Dallas County (469) 685-1700
GOWANI CONSULTANTS, INC
Internal Medicine (Sleep Medicine)
17080 DALLAS PKWY
DALLAS, TX 75248
Dallas County (214) 390-5655
COMPREHENSIVE SLEEP TREATMENT ASSOCIATES, PA
Emergency Medicine
17080 DALLAS PKWY
DALLAS, TX 75248
Dallas County (214) 390-5653

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 Daniel Mackay's NPI number?

The NPI number for Daniel Mackay is 1962450916. It was assigned to this individual provider in the NPPES registry on May 4, 2006.

Where is Daniel Mackay located?

Daniel Mackay practices at 17080 Dallas Pkwy, Dallas, TX 75248. The listed phone number is (512) 680-9300.

What is Daniel Mackay's specialty?

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

Is Daniel Mackay enrolled in Medicare?

Yes. Daniel Mackay is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Daniel Mackay's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Daniel Mackay reassigns Medicare benefits to 2 organizations: Total MD Physicians Group, PLLC (Austin, TX) and Longhorn Emergency Medical Associates PA (Austin, 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 Daniel Mackay's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Daniel Mackay accept?

Health plans from Oscar Insurance Company list Daniel 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.

When was this NPI record last updated?

The NPPES record for Daniel Mackay was last updated on April 11, 2018. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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.