NICHOLAS THOMAS THIELEN MD
NPI 1326627902
Hospitalist in Sioux Falls, SD

Active since April 02, 2021PECOS EnrolledAccepts Medicare Assignment
1305 W 18TH ST, SIOUX FALLS, SD 57105(605) 328-4973 Get Directions Write a Review

NPPES record last updated: December 11, 2024. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Dec 11, 2024, May 3, 2024, Apr 2, 2021 (3 updates tracked since 2021).

About Nicholas Thomas Thielen Md NPPES

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

NICHOLAS THOMAS THIELEN MD (NPI 1326627902) is an individual hospitalist provider in Sioux Falls, South Dakota, licensed in South Dakota (15504) and active in the NPI registry since April 2021. He is enrolled in Medicare PECOS, is affiliated with Orange City Area Health System, and maintains a secondary practice location in Sioux Falls.

NPPES Registry Identity

NPI1326627902
Entity TypeIndividualMale
Primary Taxonomy208M00000X
Provider Legal NameNICHOLAS THOMAS THIELENCredential: MD
Location Address1305 W 18TH STSioux Falls, SD 57105-0401
Mailing AddressPo Box 5074Sioux Falls, SD 57117-5074 · (605) 328-4973
Sole ProprietorNo
Medical School CMSOtherGraduated 2021
Enumeration DateApril 2, 2021
Last NPPES UpdateDecember 11, 20243 updates tracked since enumeration
NPPES CertifiedDecember 11, 2024
NPI 1326627902 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

Primary SpecialtyHospitalistAllopathic & Osteopathic Physicians
Taxonomy Code208M00000X
License Licensed in SD · 15504
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 0607 (SD)
1305 W 18TH ST, Sioux Falls, SD 57105

Secondary Practice Location 1

Location 11400 W 22nd StSioux Falls, SD 57105-1554 · Phone (605) 357-1410

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

Nicholas Thomas Thielen 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 ID1254584295
PECOS Enrollment IDI20241213000951
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.

Areas of Expertise CMS Part B claims 3

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.
102 services36 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.
25 services25 patients
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233
Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.
22 services18 patients

Hospital Affiliations CMS Care Compare 4

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

Orange City Area Health System

Critical Access Hospitals · Orange City, IA
OwnershipVoluntary non-profit - Other
CMS Certification Number161360
Location1000 Lincoln Circle SEOrange City, IA 51041 · Sioux County
Emergency services

Sanford Sheldon Medical Center

Critical Access Hospitals · Sheldon, IA
OwnershipVoluntary non-profit - Private
CMS Certification Number161381
Location118 North 7th AvenueSheldon, IA 51201 · Obrien 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

Sanford Vermillion Hospital

Critical Access Hospitals · Vermillion, SD
OwnershipVoluntary non-profit - Private
CMS Certification Number431336
Location20 South Plum StreetVermillion, SD 57069 · Clay County
Emergency services

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.

Nurse Anesthetist, Certified Registered
1305 W 18TH ST
SIOUX FALLS, SD 57105
Nurse Anesthetist, Certified Registered
1305 W 18TH ST
SIOUX FALLS, SD 57105
Internal Medicine (Endocrinology, Diabetes & Metabolism)
1305 W 18TH ST
SIOUX FALLS, SD 57105
Nurse Anesthetist, Certified Registered
1305 W 18TH ST
SIOUX FALLS, SD 57105
Nurse Practitioner (Neonatal)
1305 W 18TH ST
SIOUX FALLS, SD 57105
Nurse Practitioner
1305 W 18TH ST
SIOUX FALLS, SD 57105
Nurse Anesthetist, Certified Registered
1305 W 18TH ST
SIOUX FALLS, SD 57105
Pathology (Anatomic Pathology & Clinical Pathology)
1305 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 Nicholas Thielen's NPI number?

The NPI number for Nicholas Thielen is 1326627902. It was assigned to this individual provider in the NPPES registry on April 2, 2021.

Where is Nicholas Thielen located?

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

What is Nicholas Thielen's specialty?

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

Is Nicholas Thielen enrolled in Medicare?

Yes. Nicholas Thielen 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 Nicholas Thielen accept?

Health plans from Medica list Nicholas Thielen 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 Nicholas Thielen affiliated with any hospitals?

According to CMS data, Nicholas Thielen is affiliated with Orange City Area Health System, Sanford Sheldon Medical Center, Sanford Usd Medical Center and Sanford Vermillion Hospital.

When was this NPI record last updated?

The NPPES record for Nicholas Thielen was last updated on December 11, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.