DARRIN TONSFELDT
NPI 1437460987
Psychologist in Fargo, ND

Active since June 30, 2010PECOS EnrolledAccepts Medicare Assignment
417 MAIN AVE STE 302, FARGO, ND 58103(701) 541-5831(701) 235-6706 Get Directions Write a Review

NPPES record last updated: February 15, 2019. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: Feb 15, 2019, Dec 26, 2018, Mar 17, 2018 and 1 more (4 updates tracked since 2017).

About Darrin Tonsfeldt NPPES

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

DARRIN TONSFELDT (NPI 1437460987) is an individual psychologist in Fargo, North Dakota, licensed in Minnesota (3591) and active in the NPI registry since June 2010. He is enrolled in Medicare PECOS and is a graduate of Other (1988).

NPPES Registry Identity

NPI1437460987
Entity TypeIndividualMale
Primary Taxonomy103T00000X
Provider Legal NameDARRIN TONSFELDT
Location Address417 MAIN AVE STE 302Fargo, ND 58103-1956
Mailing Address417 Main Ave Ste 302Fargo, ND 58103-1956 · (701) 541-5831 · Fax (701) 235-6706
Fax(701) 235-6706
Sole ProprietorNo
Medical School CMSOtherGraduated 1988
Enumeration DateJune 30, 2010
Last NPPES UpdateFebruary 15, 20194 updates tracked since enumeration
NPI 1437460987 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

Primary SpecialtyPsychologistBehavioral Health & Social Service Providers
Taxonomy Code103T00000X
License Licensed in MN · 3591
Definition
A psychologist is an individual who is licensed to practice psychology which is defined as the observation, description, evaluation, interpretation, and modification of human behavior by the application of psychological principles, methods, and procedures, for the purpose of preventing or eliminating symptomatic, maladaptive, or undesired behavior and of enhancing interpersonal relationships, work and life adjustment, personal effectiveness, behavioral health, and mental health. The practice of psychology includes, but is not limited to, psychological testing and the evaluation or assessment of personal characteristics, such as intelligence, personality, abilities, interests, aptitudes, and neuropsychological functioning; counseling, psychoanalysis, psychotherapy, hypnosis, biofeedback, and behavior analysis and therapy; diagnosis and treatment of mental and emotional disorder or disability, alcoholism and substance abuse, disorders of habit or conduct, as well as of the psychological aspects of physical illness, accident, injury, or disability; and psycheducational evaluation, therapy, remediation, and consultation. Psychological services may be rendered to individuals, families, groups and the public.
Also ListedCounselor · ProfessionalTaxonomy 101YP2500X · License 443-5-1-00 (ND), 443-5-1-00-337 (ND)
417 MAIN AVE STE 302, Fargo, ND 58103

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

Darrin Tonsfeldt 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 ID7618409699
PECOS Enrollment IDI20241015003425
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.

Other Providers at the Same Location NPPES

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

Clinic/Center (Mental Health (Including Community Mental Health Center))
417 MAIN AVE STE 302
FARGO, ND 58103

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 Darrin Tonsfeldt's NPI number?

The NPI number for Darrin Tonsfeldt is 1437460987. It was assigned to this individual provider in the NPPES registry on June 30, 2010.

Where is Darrin Tonsfeldt located?

Darrin Tonsfeldt practices at 417 Main Ave Ste 302, Fargo, ND 58103. The listed phone number is (701) 541-5831.

What is Darrin Tonsfeldt's specialty?

The primary specialty registered for this NPI is Psychologist with taxonomy code 103T00000X.

Is Darrin Tonsfeldt enrolled in Medicare?

Yes. Darrin Tonsfeldt 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 Darrin Tonsfeldt accept?

Health plans from Blue Cross Blue Shield of North Dakota, Medica, Providence Health Plan and Sanford Health Plan list Darrin Tonsfeldt 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 Darrin Tonsfeldt was last updated on February 15, 2019. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.