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JANA LEE THEISEN LCAC, LCSW
NPI 1851694806
Counselor - Addiction (Substance Use Disorder) in Grand Forks, ND

Active since December 14, 2010PECOS EnrolledAccepts Medicare Assignment
4700 S WASHINGTON ST STE G, GRAND FORKS, ND 58201(701) 746-6336(701) 772-1030 Get Directions Write a Review

NPPES record last updated: July 1, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: May 20, 2025, Jan 24, 2017 (2 updates tracked since 2017).

About Jana Lee Theisen Lcac, Lcsw NPPES

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

JANA LEE THEISEN LCAC, LCSW (NPI 1851694806) is an individual addiction (substance use disorder) provider in Grand Forks, North Dakota, licensed in North Dakota (1598) and active in the NPI registry since December 2010. She is enrolled in Medicare PECOS and is a graduate of Other (2018).

NPPES Registry Identity

NPI1851694806
Entity TypeIndividualFemale
Primary Taxonomy101YA0400X
Provider Legal NameJANA LEE THEISENCredential: LCAC, LCSW
Location Address4700 S WASHINGTON ST STE GGrand Forks, ND 58201-8155
Mailing Address4700 S Washington St Ste GGrand Forks, ND 58201-8155 · (701) 746-6336 · Fax (701) 772-1030
Phone(701) 746-6336
Fax(701) 772-1030
Sole ProprietorNo
Medical School CMSOtherGraduated 2018
Enumeration DateDecember 14, 2010
Last NPPES UpdateJuly 1, 20262 updates tracked since enumeration
NPPES CertifiedJuly 1, 2026
✔ NPI 1851694806 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyCounselor · Addiction (Substance Use Disorder)Behavioral Health & Social Service Providers
Taxonomy Code101YA0400X
License✔ Licensed in ND · 1598
Also ListedSocial Worker · ClinicalTaxonomy 1041C0700X · License 4196 (ND)
4700 S WASHINGTON ST STE G, Grand Forks, ND 58201
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross Blue Shield of North Dakota, Sanford Health Plan.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

Jana Lee Theisen Lcac, Lcsw 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 ID446762793
PECOS Enrollment IDI20250624000615
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 Jana Theisen reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Agassiz Associates, PLLC
Same address
Clinical
4700 S WASHINGTON ST STE G
Grand Forks, ND 58201
  • Reassigned Medicare billing, North Dakota enrollment
  • 8 clinicians in this Medicare group
NPI 1700972122 (701) 746-6336

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

Other Providers at the Same Location NPPES 17

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

MRS. RITA DAVIS COLE LMSW
Social Worker
4700 S WASHINGTON ST STE G
GRAND FORKS, ND 58201
Grand Forks County (701) 205-3000
AMANDA MARIE WALKOWIAK PHD
Student in an Organized Health Care Education/Training Program
4700 S WASHINGTON ST STE G
GRAND FORKS, ND 58201
Grand Forks County (701) 746-6336
SARAH ASHLEY HUFFSTETLER BEHAVIOR TECHNICIAN
Social Worker (Clinical)
4700 S WASHINGTON ST STE G
GRAND FORKS, ND 58201
Grand Forks County (701) 205-3000
DAVID B EBERLY PA-C
Physician Assistant
4700 S WASHINGTON ST STE G
GRAND FORKS, ND 58201
Grand Forks County (701) 205-3000
MARLYS F FISHER LMAC, LPC
Counselor (Addiction (Substance Use Disorder))
4700 S WASHINGTON ST STE G
GRAND FORKS, ND 58201
Grand Forks County (701) 746-6336
DR. THOMAS MICHAEL PETERSON MD
Psychiatry & Neurology (Psychiatry)
4700 S WASHINGTON ST STE G
GRAND FORKS, ND 58201
Grand Forks County (701) 205-3000
AGASSIZ ASSOCIATES, PLLC
Psychologist (Clinical)
4700 S WASHINGTON ST STE G
GRAND FORKS, ND 58201
Grand Forks County (701) 746-6336
APRIL SMARTT
Social Worker
4700 S WASHINGTON ST STE G
GRAND FORKS, ND 58201
Grand Forks County (701) 205-3000

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 Jana Theisen's NPI number?

The NPI number for Jana Theisen is 1851694806. It was assigned to this individual provider in the NPPES registry on December 14, 2010.

Where is Jana Theisen located?

Jana Theisen practices at 4700 S Washington St Ste G, Grand Forks, ND 58201. The listed phone number is (701) 746-6336.

What is Jana Theisen's specialty?

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

Is Jana Theisen enrolled in Medicare?

Yes. Jana Theisen 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 Jana Theisen's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Jana Theisen reassigns Medicare benefits to Agassiz Associates, PLLC (Grand Forks, ND). 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 Jana Theisen's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Jana Theisen accept?

Health plans from Blue Cross Blue Shield of North Dakota and Sanford Health Plan list Jana Theisen 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 Jana Theisen was last updated on July 1, 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.