DR. THEOPHILUS BORKETEY BORTIER MD
NPI 1861141939
Internal Medicine in Yankton, SD

Active since March 23, 2022PECOS EnrolledAccepts Medicare Assignment
501 SUMMIT ST, YANKTON, SD 57078(605) 668-8000(605) 665-0170 Get Directions Write a Review

NPPES record last updated: July 20, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Dr. Theophilus Borketey Bortier Md NPPES

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

DR. THEOPHILUS BORKETEY BORTIER MD (NPI 1861141939) is an individual internal medicine provider in Yankton, South Dakota, licensed in South Dakota (18263) and active in the NPI registry since March 2022. He is enrolled in Medicare PECOS, is affiliated with Avera Sacred Heart Hospital, and is a graduate of Other (2025).

NPPES Registry Identity

NPI1861141939
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameDR. THEOPHILUS BORKETEY BORTIERCredential: MD
Location Address501 SUMMIT STYankton, SD 57078-3855
Mailing Address501 Summit StYankton, SD 57078-3855 · (605) 668-8000 · Fax (605) 665-0170
Fax(605) 665-0170
Sole ProprietorNo
Medical School CMSOtherGraduated 2025
Enumeration DateMarch 23, 2022
Last NPPES UpdateJuly 20, 2026
NPPES CertifiedJuly 20, 2026
✔ NPI 1861141939 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in SD · 18263
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.
501 SUMMIT ST, Yankton, SD 57078

Accepted 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. Theophilus Borketey Bortier Md 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 ID3476012881
PECOS Enrollment IDI20260826003456
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 Reassignment

Medicare enrollment records show Theophilus Bortier reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Hospitalist
501 SUMMIT ST
Yankton, SD 57078
  • Reassigned Medicare billing, South Dakota enrollment
  • 227 clinicians in this Medicare group

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

Hospital Affiliations CMS Care Compare

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

Avera Sacred Heart Hospital

Acute Care Hospitals · Yankton, SD
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number430012
Location501 Summit StYankton, SD 57078 · Yankton County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 57078 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.

Nurse Anesthetist, Certified Registered
501 SUMMIT ST
YANKTON, SD 57078
Physical Therapist
501 SUMMIT ST
YANKTON, SD 57078
Respite Care
501 SUMMIT ST
YANKTON, SD 57078
Pathology (Anatomic Pathology & Clinical Pathology)
501 SUMMIT ST
YANKTON, SD 57078
Occupational Therapist
501 SUMMIT ST
YANKTON, SD 57078
Nurse Anesthetist, Certified Registered
501 SUMMIT ST
YANKTON, SD 57078
Hospice, Inpatient
501 SUMMIT ST
YANKTON, SD 57078
Clinic/Center (Adult Day Care)
501 SUMMIT ST
YANKTON, SD 57078

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 Theophilus Bortier's NPI number?

The NPI number for Theophilus Bortier is 1861141939. It was assigned to this individual provider in the NPPES registry on March 23, 2022.

Where is Theophilus Bortier located?

Theophilus Bortier practices at 501 Summit St, Yankton, SD 57078. The listed phone number is (605) 668-8000.

What is Theophilus Bortier's specialty?

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

Is Theophilus Bortier enrolled in Medicare?

Yes. Theophilus Bortier 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 organization bills Medicare for Theophilus Bortier's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Theophilus Bortier reassigns Medicare benefits to Sacred Heart Health Services (Yankton, SD). The 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 Theophilus Bortier's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Theophilus Bortier accept?

Health plans from Wellmark of South Dakota, Inc. list Theophilus Bortier 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 Theophilus Bortier affiliated with any hospitals?

According to CMS data, Theophilus Bortier is affiliated with Avera Sacred Heart Hospital.

When was this NPI record last updated?

The NPPES record for Theophilus Bortier was last updated on July 20, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 months 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.