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

DR. RIAZ MAHMOOD DO
NPI 1184184061
Internal Medicine - Cardiovascular Disease in Sioux Falls, SD

Active since March 25, 2019PECOS Enrolled
1301 W 18TH ST, SIOUX FALLS, SD 57105(605) 312-2200(605) 312-2222 Get Directions Write a Review

NPPES record last updated: August 7, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Aug 7, 2026, Sep 9, 2025 (2 updates tracked since 2025).

About Dr. Riaz Mahmood Do NPPES

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

DR. RIAZ MAHMOOD DO (NPI 1184184061) is an individual cardiovascular disease provider in Sioux Falls, South Dakota, licensed in South Dakota (18600) and active in the NPI registry since March 2019. He is enrolled in Medicare PECOS, is affiliated with Atrium Health Floyd Medical Center, and maintains a secondary practice location in Gainesville.

NPPES Registry Identity

NPI1184184061
Entity TypeIndividualMale
Primary Taxonomy207RC0000X
Provider Legal NameDR. RIAZ MAHMOODCredential: DO
Location Address1301 W 18TH STSioux Falls, SD 57105-0401
Mailing AddressPo Box 5074Sioux Falls, SD 57117-5074 · (605) 328-6585 · Fax (605) 328-6512
Fax(605) 312-2222
Sole ProprietorNo
Medical School CMSCampbell Univ School Of Osteopathic MedicineGraduated 2019
Enumeration DateMarch 25, 2019
Last NPPES UpdateAugust 7, 20262 updates tracked since enumeration
NPPES CertifiedAugust 7, 2026
NPI 1184184061 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

Primary SpecialtyInternal Medicine · Cardiovascular DiseaseAllopathic & Osteopathic Physicians
Taxonomy Code207RC0000X
License Licensed in SD · 18600
Definition
An internist who specializes in diseases of the heart and blood vessels and manages complex cardiac conditions such as heart attacks and life-threatening, abnormal heartbeat rhythms.
Also ListedInternal MedicineTaxonomy 207R00000X · License 96111 (GA)
1301 W 18TH ST, Sioux Falls, SD 57105

Secondary Practice Location 1

Location 1743 Spring St NE Rear 710Gainesville, GA 30501-3899 · Phone (770) 219-8730

Accepted 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. Riaz Mahmood Do 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 ID2860734266
PECOS Enrollment IDI20250919001863
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.

Hospital Affiliations CMS Care Compare

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

Atrium Health Floyd Medical Center

Acute Care Hospitals · Rome, GA
2/5 CMS rating
OwnershipGovernment - Hospital District or Authority
CMS Certification Number110054
Location304 Turner Mccall BoulevardRome, GA 30162 · Floyd County
Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 57105 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
$126.78 typical visit price
range $55.52 – $167.23
Typical copayment $31.69 (range $13.88 – $41.80)
Most-billed visit code 99204
Established Patient
$69.20 typical visit price
range $18.08 – $137.08
Typical copayment $17.30 (range $4.52 – $34.27)
Most-billed visit code 99213
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.

Nurse Practitioner
1301 W 18TH ST
SIOUX FALLS, SD 57105
Internal Medicine (Cardiovascular Disease)
1301 W 18TH ST
SIOUX FALLS, SD 57105
Nurse Practitioner (Family)
1301 W 18TH ST
SIOUX FALLS, SD 57105
Nurse Practitioner
1301 W 18TH ST
SIOUX FALLS, SD 57105
Internal Medicine (Cardiovascular Disease)
1301 W 18TH ST
SIOUX FALLS, SD 57105
Nurse Practitioner
1301 W 18TH ST
SIOUX FALLS, SD 57105
Physician Assistant
1301 W 18TH ST
SIOUX FALLS, SD 57105
Physician Assistant
1301 W 18TH ST
SIOUX FALLS, SD 57105

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 Riaz Mahmood's NPI number?

The NPI number for Riaz Mahmood is 1184184061. It was assigned to this individual provider in the NPPES registry on March 25, 2019.

Where is Riaz Mahmood located?

Riaz Mahmood practices at 1301 W 18th St, Sioux Falls, SD 57105. The listed phone number is (605) 312-2200.

What is Riaz Mahmood's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Cardiovascular Disease, with taxonomy code 207RC0000X.

Is Riaz Mahmood enrolled in Medicare?

Yes. Riaz Mahmood 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 Riaz Mahmood accept?

Health plans from Alliant Health Plans, Inc. list Riaz Mahmood 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 Riaz Mahmood affiliated with any hospitals?

According to CMS data, Riaz Mahmood is affiliated with Atrium Health Floyd Medical Center.

When was this NPI record last updated?

The NPPES record for Riaz Mahmood was last updated on August 7, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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.