Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 30 days.

OSAMA NASIM AHSAN DO
NPI 1043903891
Hospitalist in Rapid City, SD

Active since May 30, 2023PECOS Enrolled
353 FAIRMONT BLVD, RAPID CITY, SD 57701(605) 755-1000 Get Directions Write a Review

NPPES record last updated: July 15, 2026. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: Jul 15, 2026, May 30, 2023 (2 updates tracked since 2023).

About Osama Nasim Ahsan Do NPPES

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

OSAMA NASIM AHSAN DO (NPI 1043903891) is an individual hospitalist provider in Rapid City, South Dakota, licensed in South Dakota (18675) and active in the NPI registry since May 2023. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1043903891
Entity TypeIndividualMale
Primary Taxonomy208M00000X
Provider Legal NameOSAMA NASIM AHSANCredential: DO
Location Address353 FAIRMONT BLVDRapid City, SD 57701-7375
Mailing Address180 Harvester Dr Ste 110Burr Ridge, IL 60527-6686 · (773) 702-1150
Sole ProprietorNo
Enumeration DateMay 30, 2023
Last NPPES UpdateJuly 15, 20262 updates tracked since enumeration
NPPES CertifiedJuly 15, 2026
NPI 1043903891 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyHospitalistAllopathic & Osteopathic Physicians
Taxonomy Code208M00000X
License Licensed in SD · 18675
Definition
Hospitalists are physicians whose primary professional focus is the general medical care of hospitalized patients. Their activities include patient care, teaching, research, and leadership related to Hospital Medicine. The term 'hospitalist' refers to physicians whose practice emphasizes providing care for hospitalized patients.
353 FAIRMONT BLVD, Rapid City, SD 57701

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

Enrolled in Medicare (PECOS)

Osama Nasim Ahsan Do 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 57701 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
$97.88 typical visit price
range $18.08 – $137.08
Typical copayment $24.47 (range $4.52 – $34.27)
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.

Clinic/Center (End-Stage Renal Disease (ESRD) Treatment)
353 FAIRMONT BLVD
RAPID CITY, SD 57701
Internal Medicine (Pulmonary Disease)
353 FAIRMONT BLVD
RAPID CITY, SD 57701
Nurse Practitioner
353 FAIRMONT BLVD
RAPID CITY, SD 57701
Dietitian, Registered
353 FAIRMONT BLVD
RAPID CITY, SD 57701
Physician Assistant
353 FAIRMONT BLVD
RAPID CITY, SD 57701
Pharmacist
353 FAIRMONT BLVD
RAPID CITY, SD 57701
Physician Assistant
353 FAIRMONT BLVD
RAPID CITY, SD 57701
Internal Medicine
353 FAIRMONT BLVD
RAPID CITY, SD 57701

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 Osama Ahsan's NPI number?

The NPI number for Osama Ahsan is 1043903891. It was assigned to this individual provider in the NPPES registry on May 30, 2023.

Where is Osama Ahsan located?

Osama Ahsan practices at 353 Fairmont Blvd, Rapid City, SD 57701. The listed phone number is (605) 755-1000.

What is Osama Ahsan's specialty?

The primary specialty registered for this NPI is Hospitalist with taxonomy code 208M00000X.

Is Osama Ahsan enrolled in Medicare?

Yes. Osama Ahsan is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Osama Ahsan was last updated on July 15, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.