1. Home
  2. Directory
  3. South Dakota
  4. Sioux Falls
  5. Hospitalist
  6. NPI Profile

DR. OBINNA EMMANUEL NWADIBIA M.D
NPI 1790940658
Hospitalist in Sioux Falls, SD

Active since July 21, 2008PECOS EnrolledAccepts Medicare Assignment
1305 W 18TH ST, SIOUX FALLS, SD 57105(605) 328-4973 Get Directions Write a Review

NPPES record last updated: March 29, 2023. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Mar 29, 2023, Jun 28, 2018 (2 updates tracked since 2018).

About Dr. Obinna Emmanuel Nwadibia M.d NPPES

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

DR. OBINNA EMMANUEL NWADIBIA M.D (NPI 1790940658) is an individual hospitalist provider in Sioux Falls, South Dakota, licensed in South Dakota (8070) and active in the NPI registry since July 2008. He is enrolled in Medicare PECOS, is affiliated with Lakes Regional Healthcare, and is a graduate of Other (1999).

NPPES Registry Identity

NPI1790940658
Entity TypeIndividualMale
Primary Taxonomy208M00000X
Provider Legal NameDR. OBINNA EMMANUEL NWADIBIACredential: M.D
Location Address1305 W 18TH STSioux Falls, SD 57105
Mailing AddressPo Box 5074Sioux Falls, SD 57117-5074
Phone(605) 328-4973
Sole ProprietorNo
Medical School CMSOtherGraduated 1999
Enumeration DateJuly 21, 2008
Last NPPES UpdateMarch 29, 20232 updates tracked since enumeration
NPPES CertifiedMarch 29, 2023
✔ NPI 1790940658 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyHospitalistAllopathic & Osteopathic Physicians
Taxonomy Code208M00000X
License✔ Licensed in SD · 8070
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.
Also ListedInternal MedicineTaxonomy 207R00000X · License 8070 (SD), 2008014585 (MO)
1305 W 18TH ST, Sioux Falls, SD 57105
Open in Google Maps ↗

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Avera Health Plans, Blue Cross Blue Shield of North Dakota, Oscar Insurance Company and more.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Obinna Emmanuel Nwadibia 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 ID547431470
PECOS Enrollment IDI20110926000010, I20121018000656
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.

Medicare Billing Reassignments

9

Medicare enrollment records show Obinna Nwadibia reassigns Medicare billing to 9 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Sanford Clinic
Same address
Anatomic Pathology & Clinical Pathology
1305 W 18TH ST
Sioux Falls, SD 57105
  • Reassigned Medicare billing, South Dakota enrollment
  • 826 clinicians in this Medicare group
NPI 1043583537 (605) 333-1720
Sanford Health Network
19 mi
Family Medicine
400 N HIAWATHA DRIVE
Canton, SD 57013
  • Reassigned Medicare billing, South Dakota and Minnesota enrollments
  • Also billed through NPI 1497703045 (Minnesota), NPI 1780781054 (Minnesota)
  • 422 clinicians in this Medicare group
NPI 1033140454 (605) 987-4378
Spencer Municipal Hospital
69 mi
Clinic/Center
231 N 8TH AVE W
Hartley, IA 51346
  • Reassigned Medicare billing, Iowa enrollment
  • 176 clinicians in this Medicare group
NPI 1225767338 (712) 928-1020
Lakes Regional Healthcare
82 mi
Family Medicine
2700 23RD ST STE C
Spirit Lake, IA 51360
  • Reassigned Medicare billing, Iowa enrollment
  • 65 clinicians in this Medicare group
NPI 1306100615 (712) 336-3750
Windom Area Hospital
85 mi
Critical Access
2150 HOSPITAL DR
Windom, MN 56101
  • Reassigned Medicare billing, Minnesota enrollment
  • 49 clinicians in this Medicare group
NPI 1841288644 (507) 831-2400
St Anthony Regional Hospital And Nursing Home
139 mi
Critical Access
311 S CLARK ST
Carroll, IA 51401
  • Reassigned Medicare billing, Iowa enrollment
  • Also billed through NPI 1629460555 (Iowa)
  • 96 clinicians in this Medicare group
NPI 1720067127 (712) 792-3581
St. Francis Medical Center
190 mi
Critical Access
2400 ST FRANCIS DR
Breckenridge, MN 56520
  • Reassigned Medicare billing, Minnesota enrollment
  • Also billed through NPI 1639162381 (Minnesota)
  • 52 clinicians in this Medicare group
NPI 1891954574 (218) 643-3000
Floyd County Memorial Hospital Commission
207 mi
Emergency Medicine
800 11TH ST
Charles City, IA 50616
  • Reassigned Medicare billing, Iowa enrollment
  • Also billed through NPI 1265402390 (Iowa)
  • 96 clinicians in this Medicare group
NPI 1346210408 (641) 228-6830
Perham Hospital District
218 mi
Critical Access
1000 CONEY ST W
Perham, MN 56573
  • Reassigned Medicare billing, Minnesota enrollment
  • Also billed through NPI 1932113768 (Minnesota)
  • 69 clinicians in this Medicare group
NPI 1790799518 (218) 347-4500

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 8

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.
313 services138 patients
Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes 99231
Follow-up hospital inpatient care is a daily service where a healthcare professional checks on your health progress during your hospital stay. Each session typically lasts 15 minutes, involving updates on your condition and adjustments to your treatment plan, if necessary.
256 services87 patients
Hospital discharge day management, more than 30 minutes 99239
Hospital discharge day management over 30 minutes involves a detailed process to ensure a smooth transition from hospital to home. It includes final examinations, discussion of your hospital stay, post-discharge instructions, and coordinating follow-up care.
91 services89 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.
71 services68 patients
Emergency department visit with high level of medical decision making 99285
An emergency department visit for severe conditions is when you urgently seek medical help due to serious health issues. These could be severe injuries, breathing problems, unbearable pain, or sudden severe illness. Doctors and nurses will provide immediate care to stabilize your condition.
63 services61 patients
Emergency department visit with moderate level of medical decision making 99284
An emergency department visit for a high-severity issue means you're experiencing a serious health problem that needs immediate attention. This could be a severe injury, serious illness, or life-threatening condition. Medical professionals will provide urgent care to stabilize your condition.
46 services45 patients

Hospital Affiliations CMS Care Compare 4

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

Lakes Regional Healthcare

Acute Care Hospitals · Spirit Lake, IA
3/5 CMS rating
OwnershipGovernment - Local
CMS Certification Number160124
Location2301 Highway 71Spirit Lake, IA 51360 · Dickinson County
Emergency services Birthing friendly

Windom Area Health

Critical Access Hospitals · Windom, MN
OwnershipGovernment - Local
CMS Certification Number241332
Location2150 Hospital Drive, PO Box 339Windom, MN 56101 · Cottonwood County
Emergency services

St Francis Medical Center

Critical Access Hospitals · Breckenridge, MN
OwnershipVoluntary non-profit - Church
CMS Certification Number241377
Location2400 St Francis DriveBreckenridge, MN 56520 · Wilkin County
Emergency services

Sanford Usd Medical Center

Acute Care Hospitals · Sioux Falls, SD
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number430027
Location1305 W 18th St Post Office Box 5039Sioux Falls, SD 57117 · Minnehaha County
Emergency services 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
$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.

JEDD D BIALAS CRNA
Nurse Anesthetist, Certified Registered
1305 W 18TH ST
SIOUX FALLS, SD 57105
Minnehaha County (605) 333-1000
AARON DANIEL MORTENSEN CRNA
Nurse Anesthetist, Certified Registered
1305 W 18TH ST
SIOUX FALLS, SD 57105
Minnehaha County (605) 333-1000
DR. JULIANA JOHNSON FERRI GUERRA MD
Internal Medicine (Endocrinology, Diabetes & Metabolism)
1305 W 18TH ST
SIOUX FALLS, SD 57105
Minnehaha County (605) 328-8700
PAUL E GILMORE CRNA
Nurse Anesthetist, Certified Registered
1305 W 18TH ST
SIOUX FALLS, SD 57105
Minnehaha County (605) 333-1000
BETH ABRAHAMSON
Nurse Practitioner (Neonatal)
1305 W 18TH ST
SIOUX FALLS, SD 57105
Minnehaha County (605) 328-3006
RYAN LAWRENCE TENNANT CNP
Nurse Practitioner
1305 W 18TH ST
SIOUX FALLS, SD 57105
Minnehaha County (605) 333-1000
LCM PATHOLOGISTS PC
Pathology (Anatomic Pathology & Clinical Pathology)
1305 W 18TH ST
SIOUX FALLS, SD 57105
Minnehaha County (800) 284-9806
ARLEIGH TRAINOR MD
Emergency Medicine
1305 W 18TH ST
SIOUX FALLS, SD 57105
Minnehaha County (605) 333-1000

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 Obinna Nwadibia's NPI number?

The NPI number for Obinna Nwadibia is 1790940658. It was assigned to this individual provider in the NPPES registry on July 21, 2008.

Where is Obinna Nwadibia located?

Obinna Nwadibia practices at 1305 W 18th St, Sioux Falls, SD 57105. The listed phone number is (605) 328-4973.

What is Obinna Nwadibia's specialty?

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

Is Obinna Nwadibia enrolled in Medicare?

Yes. Obinna Nwadibia 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.

Which organizations bill Medicare for Obinna Nwadibia's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Obinna Nwadibia reassigns Medicare benefits to 9 organizations: Sanford Clinic (Sioux Falls, SD), Sanford Health Network (Canton, SD), Spencer Municipal Hospital (Hartley, IA), Lakes Regional Healthcare (Spirit Lake, IA), Windom Area Hospital (Windom, MN) and 4 more organizations, listed in the Medicare section above. Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Obinna Nwadibia's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Obinna Nwadibia accept?

Health plans from Avera Health Plans, Blue Cross Blue Shield of North Dakota, Oscar Insurance Company, Sanford Health Plan and Wellmark Health Plan of Iowa, Inc. and 1 other insurer list Obinna Nwadibia 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 Obinna Nwadibia affiliated with any hospitals?

According to CMS data, Obinna Nwadibia is affiliated with Lakes Regional Healthcare, Windom Area Health, St Francis Medical Center and Sanford Usd Medical Center.

When was this NPI record last updated?

The NPPES record for Obinna Nwadibia was last updated on March 29, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 years 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.