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DR. JUSTIN ARUNTHAMAKUN M.D
NPI 1679936074
Internal Medicine - Clinical Cardiac Electrophysiology in Mckinney, TX

Active since April 01, 2016PECOS EnrolledAccepts Medicare Assignment
5236 W UNIVERSITY DR STE 4900, MCKINNEY, TX 75071(972) 860-8679 Get Directions Write a Review

NPPES record last updated: September 8, 2025. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Sep 8, 2025, Jul 24, 2024, Jul 2, 2024 and 1 more (4 updates tracked since 2016).

About Dr. Justin Arunthamakun M.d NPPES

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

DR. JUSTIN ARUNTHAMAKUN M.D (NPI 1679936074) is an individual clinical cardiac electrophysiology provider in Mckinney, Texas, licensed in Texas (R4809) and active in the NPI registry since April 2016. He is enrolled in Medicare PECOS, is affiliated with Baylor Scott & White Medical Center Grapevine, and maintains 2 additional practice locations.

NPPES Registry Identity

NPI1679936074
Entity TypeIndividualMale
Primary Taxonomy207RC0001X
Provider Legal NameDR. JUSTIN ARUNTHAMAKUNCredential: M.D
Location Address5236 W UNIVERSITY DR STE 4900Mckinney, TX 75071-8185
Mailing Address8414 Naab RdIndianapolis, IN 46260-1972
Phone(972) 860-8679
Sole ProprietorYes
Medical School CMSUniversity Of Tennessee, Hsc, College Of MedicineGraduated 2016
Enumeration DateApril 1, 2016
Last NPPES UpdateSeptember 8, 20254 updates tracked since enumeration
NPPES CertifiedSeptember 8, 2025
✔ NPI 1679936074 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · Clinical Cardiac ElectrophysiologyAllopathic & Osteopathic Physicians
Taxonomy Code207RC0001X
License✔ Licensed in TX · R4809
Definition
A field of special interest within the subspecialty of cardiovascular disease, specialty of Internal Medicine, which involves intricate technical procedures to evaluate heart rhythms and determine appropriate treatment for them.
Also ListedInternal MedicineTaxonomy 207R00000X · License BP10056212 (TX), 01087599A (IN)
5236 W UNIVERSITY DR STE 4900, Mckinney, TX 75071
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Secondary Practice Locations 2

Location 11 Baylor PlzHouston, TX 77030-3411 · Phone (713) 798-5588
Location 28414 Naab RdIndianapolis, IN 46260-1972 · Phone (317) 338-7770

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Baylor Scott and White Health Plan, Blue Cross and Blue Shield of Texas, CareSource and more.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. Justin Arunthamakun 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 ID1951639582
PECOS Enrollment IDI20240913002643
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 4

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.
42 services25 patients
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233
Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.
24 services13 patients
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223
Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.
23 services23 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.
21 services20 patients

Hospital Affiliations CMS Care Compare 3

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

Baylor Scott & White Medical Center Grapevine

Acute Care Hospitals · Grapevine, TX
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number450563
Location1650 W College StGrapevine, TX 76051 · Tarrant County
Emergency services Birthing friendly

Baylor Scott & White The Heart Hospital - Plano

Acute Care Hospitals · Plano, TX
5/5 CMS rating
OwnershipProprietary
CMS Certification Number670025
Location1100 Allied DrivePlano, TX 75093 · Collin County
Emergency services

Baylor Scott And White Medical Center Mckinney

Acute Care Hospitals · Mc Kinney, TX
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number670082
Location5252 West University DriveMc Kinney, TX 75071 · Collin County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 75071 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.

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 Justin Arunthamakun's NPI number?

The NPI number for Justin Arunthamakun is 1679936074. It was assigned to this individual provider in the NPPES registry on April 1, 2016.

Where is Justin Arunthamakun located?

Justin Arunthamakun practices at 5236 W University Dr Ste 4900, Mckinney, TX 75071. The listed phone number is (972) 860-8679.

What is Justin Arunthamakun's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Clinical Cardiac Electrophysiology, with taxonomy code 207RC0001X.

Is Justin Arunthamakun enrolled in Medicare?

Yes. Justin Arunthamakun 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 Justin Arunthamakun accept?

Health plans from Baylor Scott and White Health Plan, Blue Cross and Blue Shield of Texas, CareSource and Imperial Insurance Companies, Inc. list Justin Arunthamakun 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 Justin Arunthamakun affiliated with any hospitals?

According to CMS data, Justin Arunthamakun is affiliated with Baylor Scott & White Medical Center Grapevine, Baylor Scott & White The Heart Hospital - Plano and Baylor Scott And White Medical Center Mckinney.

When was this NPI record last updated?

The NPPES record for Justin Arunthamakun was last updated on September 8, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 months 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.