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HUMAN SERVICE AGENCY
NPI 1720074644
Counselor - Addiction (Substance Use Disorder) in Watertown, SD

Active since September 26, 2005
123 19TH ST NE, WATERTOWN, SD 57201(605) 886-0123(605) 886-5447 Get Directions Write a Review

NPPES record last updated: August 6, 2024. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Aug 6, 2024, Apr 11, 2022 (2 updates tracked since 2022).

About Human Service Agency NPPES

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

HUMAN SERVICE AGENCY (NPI 1720074644) is a healthcare organization registered as an addiction (substance use disorder) in Watertown, South Dakota and active in the NPI registry since September 2005. The organization lists Kari Johnston, Ceo, as its authorized official.

NPPES Registry Identity

NPI1720074644
Entity TypeOrganization
Primary Taxonomy101YA0400X
Legal Business NameHUMAN SERVICE AGENCY
Location Address123 19TH ST NEWatertown, SD 57201-2823
Mailing Address123 19th St NeWatertown, SD 57201-2823 · (605) 886-0123 · Fax (605) 886-5447
Phone(605) 886-0123
Fax(605) 886-5447
Organization SubpartNo
Authorized OfficialKari JohnstonCeo · (605) 886-0123
Enumeration DateSeptember 26, 2005
Last NPPES UpdateAugust 6, 20242 updates tracked since enumeration
NPPES CertifiedAugust 6, 2024
✔ NPI 1720074644 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 9

★ Primary SpecialtyCounselor · Addiction (Substance Use Disorder)Behavioral Health & Social Service Providers
Taxonomy Code101YA0400X
License✔ Licensed in SD · 704
Also ListedCounselorTaxonomy 101Y00000X · License 006 (SD)
Also ListedPsychologistTaxonomy 103T00000X · License 006 (SD)
Also ListedPsychologist · Addiction (Substance Use Disorder)Taxonomy 103TA0400X · License 704 (SD)
Also ListedPsychiatry & Neurology · PsychiatryTaxonomy 2084P0800X · License 006 (SD)
Also ListedPsychiatry & Neurology · Addiction PsychiatryTaxonomy 2084P0802X · License 704 (SD)
Also ListedClinic/Center · Rehabilitation, Substance Use DisorderTaxonomy 261QR0405X · License 006 (SD), 704 (SD)
Also ListedResidential Treatment Facility, Intellectual and/or Developmental DisabilitiesTaxonomy 320600000X · License 006 (SD), 704 (SD)
Also ListedCommunity Based Residential Treatment Facility, Intellectual and/or Developmental DisabilitiesTaxonomy 320900000X · License 006 (SD), 704 (SD)
123 19TH ST NE, Watertown, SD 57201
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Other Identifiers 6

Medicaid5256010SD
Medicaid5255010SD
Medicaid0180020SD
Medicaid5200010SD
Medicaid5001040SD
Medicaid5261010SD

Group Practice 1

Group TaxonomyThis provider is a business group of one or more individual practitioners, who practice with different areas of specialization.193200000X MULTI-SPECIALTY GROUP

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Avera Health Plans, 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)

Human Service Agency is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

14

Medicare enrollment records show 14 clinicians reassign Medicare billing to Human Service Agency, which bills Medicare for the services they deliver. Of these, 2 practice at this address and 8 within 10 miles. They are listed nearest first.

Clinicians by Medicare Specialty 4

Clinical Social Worker5
Mental Health Counselor3
Nurse Practitioner3
Psychiatry3

Clinicians, nearest first (14)

Kari Johnston, LPC
Mental Health Counselor
NPI 1538154554
123 19TH ST NE
Watertown, SD 57201
(605) 886-0123
✔ PECOS✔ Accepts MedicareSame address
Heather Tobin, CSW-PIP
Clinical Social Worker
NPI 1144690090
123 19TH ST NE
Watertown, SD 57201
(605) 886-0123
✔ PECOS✔ Accepts MedicareSame address
Mary Bauer
Mental Health Counselor
NPI 1760136857
123 19TH ST NE
Watertown, SD 57201
(605) 886-0123
✔ PECOS✔ Accepts Medicare0.1 mi
Cora Lowry, LSW
Clinical Social Worker
NPI 1871135087
123 19TH ST NE
Watertown, SD 57201
(605) 886-0123
✔ PECOS✔ Accepts Medicare0.1 mi
David Mendel, LCSW
Clinical Social Worker
NPI 1174750343
123 19TH ST NE
Watertown, SD 57201
(605) 886-0123
✔ PECOS✔ Accepts Medicare0.1 mi
Josie Ries, PMHNP-BC
Nurse Practitioner
NPI 1255924791
123 19TH ST NE
Watertown, SD 57201
(605) 886-0123
✔ PECOS✔ Accepts Medicare0.1 mi
Brianna Gast, LCSW, LICSW, LAC
Clinical Social Worker
NPI 1730650938
818 S BROADWAY STE 113
Watertown, SD 57201
(605) 494-1500
✔ PECOS✔ Accepts Medicare1.6 mi
Amanda Schaeffer
Clinical Social Worker
NPI 1134637796
401 9TH AVE NW
Watertown, SD 57201
(605) 880-1697
✔ PECOS✔ Accepts Medicare1.8 mi
Clay Pavlis, M.D.
Psychiatry
NPI 1629018445
4308 S ARWAY DR
Sioux Falls, SD 57106
(605) 573-2000
✔ PECOS✔ Accepts Medicare98 mi
Jacob Mathy, MD
Psychiatry
NPI 1447943428
4400 W 69TH ST
Sioux Falls, SD 57108
(605) 322-4005
✔ PECOS✔ Accepts Medicare100 mi
Steven Meek, M.D.
Psychiatry
NPI 1093005639
7405 S BITTERROOT PL
Sioux Falls, SD 57108
(605) 501-6607
✔ PECOS✔ Accepts Medicare100 mi
Wendy Eggen
Mental Health Counselor
NPI 1689256034
200 W MAIN ST
Vermillion, SD 57069
(605) 624-9148
✔ PECOS✔ Accepts Medicare147 mi
Dione Rowe, PMHNP-BC
Nurse Practitioner
NPI 1174862924
500 E 9TH ST
Winner, SD 57580
(605) 842-1465
✔ PECOS173 mi
Tracy Romey, CNP
Nurse Practitioner
NPI 1790102549
505 N RIVER ST STE 2
Hot Springs, SD 57747
(057) 453-3206
✔ PECOS✔ Accepts Medicare333 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 Human Service Agency's NPI number?

The NPI number for Human Service Agency is 1720074644. It was assigned to this organization in the NPPES registry on September 26, 2005.

Where is Human Service Agency located?

Human Service Agency is located at 123 19th St NE, Watertown, SD 57201. The listed phone number is (605) 886-0123.

What is Human Service Agency's specialty?

The primary specialty registered for this NPI is Counselor, specializing in Addiction (Substance Use Disorder), with taxonomy code 101YA0400X.

Is Human Service Agency enrolled in Medicare?

Yes. Human Service Agency is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Human Service Agency?

According to the CMS Revalidation Reassignment List (October 2026 release), 14 clinicians in 4 Medicare specialties reassign their Medicare billing to Human Service Agency. 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. The largest specialties are Clinical Social Worker (5), Mental Health Counselor (3) and Nurse Practitioner (3). Of these, 2 practice at this address and 8 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

What insurance does Human Service Agency accept?

Health plans from Avera Health Plans and Sanford Health Plan list Human Service Agency 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 Human Service Agency was last updated on August 6, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.