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

BILLY JOE MULLINAX MD
NPI 1144789447
Internal Medicine - Interventional Cardiology in Florence, SC

Q: What is Billy Mullinax's NPI number?

The NPI number for Billy Mullinax is 1144789447. It was assigned to this individual provider in the NPPES registry on March 16, 2019.

Q: What is Billy Mullinax's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Interventional Cardiology, with taxonomy code 207RI0011X.

Q: When was this NPI record last updated?

The NPPES record for Billy Mullinax was last updated on July 28, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 days 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.

Active since March 16, 2019PECOS Enrolled

101 WILLIAM H JOHNSON ST STE 600, FLORENCE, SC 29506(843) 777-2000 Get Directions Write a Review

NPPES record last updated: July 28, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Jul 28, 2026, Jun 21, 2019, Mar 16, 2019 (3 updates tracked since 2019).

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About Billy Joe Mullinax Md NPPES

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

BILLY JOE MULLINAX MD (NPI 1144789447) is an individual interventional cardiology provider in Florence, South Carolina, licensed in South Carolina (96036) and active in the NPI registry since March 2019. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1144789447

Entity TypeIndividualMale

Primary Taxonomy207RI0011X

Provider Legal NameBILLY JOE MULLINAXCredential: MD

Location Address101 WILLIAM H JOHNSON ST STE 600Florence, SC 29506-2773

Mailing Address100 Woodruff Circle, Suite 327Atlanta, GA 30322 · (404) 727-5658

Phone(843) 777-2000

Sole ProprietorYes

Enumeration DateMarch 16, 2019

Last NPPES UpdateJuly 28, 20263 updates tracked since enumeration

NPPES CertifiedJuly 28, 2026

✔ NPI 1144789447 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 4

★ Primary SpecialtyInternal Medicine · Interventional CardiologyAllopathic & Osteopathic Physicians

Taxonomy Code207RI0011X

License✔ Licensed in SC · 96036

Definition

An area of medicine within the subspecialty of cardiology, which uses specialized imaging and other diagnostic techniques to evaluate blood flow and pressure in the coronary arteries and chambers of the heart and uses technical procedures and medications to treat abnormalities that impair the function of the cardiovascular system.

Also ListedInternal MedicineTaxonomy 207R00000X · License 90899 (GA)

Also ListedInternal Medicine · Cardiovascular DiseaseTaxonomy 207RC0000X · License 96036 (SC)

Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X · License 11214 (GA)

101 WILLIAM H JOHNSON ST STE 600, Florence, SC 29506

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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)

Billy Joe Mullinax 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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 29506 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

$124.04 typical visit price

range $53.57 – $163.84

Typical copayment $31.01 (range $13.39 – $40.96)

Most-billed visit code 99204

Established Patient

$95.12 typical visit price

range $16.96 – $133.52

Typical copayment $23.78 (range $4.24 – $33.38)

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 16

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

WHITNEY LENORE SIMS PA-C

Physician Assistant (Medical)