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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

NORTHERN PEAK CHIROPRACTIC LLC
NPI 1235729617
Chiropractor in Watertown, SD

Active since January 20, 2021
107 9TH AVE SE, WATERTOWN, SD 57201(605) 878-0167(605) 753-9080 Get Directions Write a Review

NPPES record last updated: September 10, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Sep 10, 2026, Jan 20, 2021 (2 updates tracked since 2021).

About Northern Peak Chiropractic Llc NPPES

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

NORTHERN PEAK CHIROPRACTIC LLC (NPI 1235729617) is a healthcare organization registered as a chiropractor in Watertown, South Dakota and active in the NPI registry since January 2021. The organization lists Bethany Mcmullen, Owner, as its authorized official.

NPPES Registry Identity

NPI1235729617
Entity TypeOrganization
Primary Taxonomy111N00000X
Legal Business NameNORTHERN PEAK CHIROPRACTIC LLC
Location Address107 9TH AVE SEWatertown, SD 57201-4843
Mailing Address107 9th Ave SeWatertown, SD 57201-4843 · (605) 878-0167 · Fax (605) 753-9080
Phone(605) 878-0167
Fax(605) 753-9080
Organization SubpartNo
Authorized OfficialBethany McmullenOwner · (605) 878-0167
Enumeration DateJanuary 20, 2021
Last NPPES UpdateSeptember 10, 20262 updates tracked since enumeration
NPPES CertifiedSeptember 10, 2026
✔ NPI 1235729617 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyChiropractorChiropractic Providers
Taxonomy Code111N00000X
Definition
A provider qualified by a Doctor of Chiropractic (D.C.), licensed by the State and who practices chiropractic medicine -that discipline within the healing arts which deals with the nervous system and its relationship to the spinal column and its interrelationship with other body systems.
107 9TH AVE SE, Watertown, SD 57201
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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 and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Northern Peak Chiropractic Llc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

2

Medicare enrollment records show 2 clinicians reassign Medicare billing to Northern Peak Chiropractic LLC, which bills Medicare for the services they deliver. Of these, 2 practice within 10 miles. They are listed nearest first.

Clinicians, nearest first (2)

Bethany Mcmullen, DC
Chiropractic
NPI 1821688219
600 5TH ST SE STE 2
Watertown, SD 57201
(605) 878-0167
✔ Accepts Medicare0.4 mi
William Mcmullen, DC
Chiropractic
NPI 1154911535
600 5TH ST SE STE 2
Watertown, SD 57201
(605) 878-0167
✔ Accepts Medicare0.4 mi

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 Northern Peak Chiropractic LLC's NPI number?

The NPI number for Northern Peak Chiropractic LLC is 1235729617. It was assigned to this organization in the NPPES registry on January 20, 2021.

Where is Northern Peak Chiropractic LLC located?

Northern Peak Chiropractic LLC is located at 107 9th Ave SE, Watertown, SD 57201. The listed phone number is (605) 878-0167.

What is Northern Peak Chiropractic LLC's specialty?

The primary specialty registered for this NPI is Chiropractor with taxonomy code 111N00000X.

Is Northern Peak Chiropractic LLC enrolled in Medicare?

Yes. Northern Peak Chiropractic LLC is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Northern Peak Chiropractic LLC?

According to the CMS Revalidation Reassignment List (October 2026 release), 2 clinicians, all in Chiropractic, reassign their Medicare billing to Northern Peak Chiropractic LLC. 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. Of these, 2 practice within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

What insurance does Northern Peak Chiropractic LLC accept?

Health plans from Sanford Health Plan list Northern Peak Chiropractic LLC 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 Northern Peak Chiropractic LLC was last updated on September 10, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 54 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.