MARK BONTREGER INC
NPI 1942496047
Psychologist - Clinical in Watertown, SD

Q: What is Mark Bontreger Inc's NPI number?

The NPI number for Mark Bontreger Inc is 1942496047. It was assigned to this organization in the NPPES registry on September 21, 2007.

Q: What is Mark Bontreger Inc's specialty?

The primary specialty registered for this NPI is Psychologist, specializing in Clinical, with taxonomy code 103TC0700X.

Active since September 21, 2007

525 5TH ST SE, SUITE L-13, WATERTOWN, SD 57201(605) 882-0800(605) 882-0861 Get Directions Write a Review

NPPES record last updated: June 24, 2011. Verified against the NPPES registry weekly; last sync: October 18, 2026.

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About Mark Bontreger Inc NPPES

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

MARK BONTREGER INC (NPI 1942496047) is a healthcare organization registered as a clinical in Watertown, South Dakota and active in the NPI registry since September 2007. The organization lists Mark Eldon Bontreger, President, as its authorized official.

NPPES Registry Identity

NPI1942496047

Entity TypeOrganization

Primary Taxonomy103TC0700X

Legal Business NameMARK BONTREGER INC

Location Address525 5TH ST SE, SUITE L-13Watertown, SD 57201-4940

Mailing Address525 5th St Se, Suite L-13Watertown, SD 57201-4940 · (605) 882-0800 · Fax (605) 882-0861

Phone(605) 882-0800

Fax(605) 882-0861

Organization SubpartNo

Authorized OfficialMark Eldon BontregerPresident · (605) 882-0800

Enumeration DateSeptember 21, 2007

Last NPPES UpdateJune 24, 2011

✔ NPI 1942496047 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychologist · ClinicalBehavioral Health & Social Service Providers

Taxonomy Code103TC0700X

License✔ Licensed in SD · 364

Definition

A psychologist who provides continuing and comprehensive mental and behavioral health care for individuals and families; consultation to agencies and communities; training, education and supervision; and research-based practice. It is a specialty in breadth -- one that is broadly inclusive of severe psychopathology -- and marked by comprehensiveness and integration of knowledge and skill from a broad array of disciplines within and outside of psychology proper. The scope of clinical psychology encompasses all ages, multiple diversities and varied systems.

525 5TH ST SE, Watertown, SD 57201

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Other Identifiers 1

Medicare PINS40195SD

Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Sanford Health Plan.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, revalidation and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Mark Bontreger Inc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Medicare Revalidation Due Date

Revalidation due by December 31, 2026

Medicare-enrolled providers and suppliers confirm their enrollment information with CMS on a set cycle, every 5 years for most and every 3 years for medical equipment suppliers. CMS sets the due date for each enrollment.

StateEnrollment IDDue date

StateSouth DakotaEnrollment IDO20040604000802Non-DME Part B · Clinic/Group PracticeDue dateDecember 31, 2026

Source: CMS Revalidation Due Date List, October 2026 release.

Clinicians Billing Medicare Through This Organization

Medicare enrollment records show 1 clinician reassigns Medicare billing to Mark Bontreger Inc, which bills Medicare for the services this clinician delivers.

Clinician (1)

Mark Bontreger, PSYCHOLOGIST

Clinical Psychologist

NPI 1861505190

525 5TH ST SE SUITE L-13
Watertown, SD 57201

(605) 882-0800

✔ PECOS✔ Accepts MedicareSame address

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

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 Mark Bontreger Inc's NPI number?

The NPI number for Mark Bontreger Inc is 1942496047. It was assigned to this organization in the NPPES registry on September 21, 2007.

Where is Mark Bontreger Inc located?

Mark Bontreger Inc is located at 525 5th St SE Suite L-13, Watertown, SD 57201. The listed phone number is (605) 882-0800.

What is Mark Bontreger Inc's specialty?

The primary specialty registered for this NPI is Psychologist, specializing in Clinical, with taxonomy code 103TC0700X.

Is Mark Bontreger Inc enrolled in Medicare?

Yes. Mark Bontreger Inc is registered in the Medicare PECOS enrollment system.

When is Mark Bontreger Inc's Medicare revalidation due?

According to the CMS Revalidation Due Date List (October 2026 release), the Medicare Non-DME Part B enrollment for this organization (South Dakota, Clinic/Group Practice) is due for revalidation by December 31, 2026. Medicare providers and suppliers revalidate their enrollment every 5 years, and medical equipment suppliers every 3 years. Confirm current requirements with your Medicare Administrative Contractor.

How many clinicians bill Medicare through Mark Bontreger Inc?

According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Clinical Psychologist) reassigns their Medicare billing to Mark Bontreger Inc. A 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 the clinician's services. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

What insurance does Mark Bontreger Inc accept?

Health plans from Sanford Health Plan list Mark Bontreger Inc 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.

When was this NPI record last updated?

The NPPES record for Mark Bontreger Inc was last updated on June 24, 2011. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 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.