Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

PORNTAWEE APHIVANTRAKUL
NPI 1124814785
Internal Medicine in Great Falls, MT

Q: What is Porntawee Aphivantrakul's NPI number?

The NPI number for Porntawee Aphivantrakul is 1124814785. It was assigned to this individual provider in the NPPES registry on April 18, 2025.

Q: What is Porntawee Aphivantrakul's specialty?

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

Active since April 18, 2025PECOS Enrolled

1101 26TH ST S, GREAT FALLS, MT 59405(406) 455-5000 Get Directions Write a Review

NPPES record last updated: September 17, 2026. Verified against the NPPES registry weekly; last sync: September 20, 2026.

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About Porntawee Aphivantrakul NPPES

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

PORNTAWEE APHIVANTRAKUL (NPI 1124814785) is an individual internal medicine provider in Great Falls, Montana, licensed in Wisconsin (102679-851) and active in the NPI registry since April 2025. The provider is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1124814785

Entity TypeIndividual

Primary Taxonomy207R00000X

Provider Legal NamePORNTAWEE APHIVANTRAKUL

Location Address1101 26TH ST SGreat Falls, MT 59405-5161

Mailing Address1101 26th St SGreat Falls, MT 59405-5161

Phone(406) 455-5000

Sole ProprietorYes

Enumeration DateApril 18, 2025

Last NPPES UpdateSeptember 17, 2026

NPPES CertifiedSeptember 17, 2026

✔ NPI 1124814785 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207R00000X

Licenses✔ Licensed in WI · 102679-851✔ Licensed in MT · MED-RES-LIC-159291

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.

Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X

1101 26TH ST S, Great Falls, MT 59405

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Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Porntawee Aphivantrakul 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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 59405 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

$130.52 typical visit price

range $56.81 – $172.26

Typical copayment $32.63 (range $14.20 – $43.06)

Most-billed visit code 99204

Established Patient

$100.16 typical visit price

range $18.24 – $140.32

Typical copayment $25.04 (range $4.56 – $35.08)

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.

OMER USMAN MD

Hospitalist