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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 30 days.

NATHANAEL M LARSEN PH.D.
NPI 1912954728
Psychologist - Clinical in Fergus Falls, MN

Active since May 27, 2006PECOS Enrolled
126 E ALCOTT AVE, FERGUS FALLS, MN 56537(218) 736-6987(218) 736-6980 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: July 26, 2026.

About Nathanael M Larsen Ph.d. NPPES

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

NATHANAEL M LARSEN PH.D. (NPI 1912954728) is an individual clinical provider in Fergus Falls, Minnesota, licensed in Minnesota (LP2878) and active in the NPI registry since May 2006. He is enrolled in Medicare PECOS and is a graduate of Other (2004).

NPPES Registry Identity

NPI1912954728
Entity TypeIndividualMale
Primary Taxonomy103TC0700X
Provider Legal NameNATHANAEL M LARSENCredential: PH.D.
Location Address126 E ALCOTT AVEFergus Falls, MN 56537-2903
Mailing Address23355 Oakview Heights DrFergus Falls, MN 56537-8163
Phone(218) 736-6987
Fax(218) 736-6980
Sole ProprietorNo
Medical School CMSOtherGraduated 2004
Enumeration DateMay 27, 2006
Last NPPES UpdateJuly 13, 2026
✔ NPI 1912954728 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 MN · LP2878
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.
126 E ALCOTT AVE, Fergus Falls, MN 56537
Open in Google Maps ↗

Other Identifiers 5

OtherHP23070MN · Healthpartner
Other1010714MN · Preferredone
Other62-20513MN · United Behavior Health
Other57399LAMN · Mn Blue Cross Blue Shield
Other116689MN · Ucare Minnesota

Accepted Insurance

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

Nathanael M Larsen Ph.d. 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 ID8729091640
PECOS Enrollment IDI20060719000173
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.

Areas of Expertise CMS Part B claims 2

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Psychotherapy, 30 minutes 90832
Psychotherapy is a therapeutic interaction or treatment between a trained professional and a patient. In a 30-minute session, the therapist helps you explore feelings, thoughts, and behaviors to better understand yourself and manage life's challenges.
92 services17 patients
Psychotherapy, 45 minutes 90834
Psychotherapy is a treatment method where you converse with a therapist about your thoughts, feelings, and behaviors. In a 45-minute session, the therapist assists you in understanding and managing your mental health concerns, improving emotional wellness, and promoting personal growth.
85 services21 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 56537 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$168.28 typical visit price
range $56.00 – $168.28
Typical copayment $42.07 (range $14.00 – $42.07)
Most-billed visit code 99205
Established Patient
$98.61 typical visit price
range $18.32 – $138.04
Typical copayment $24.65 (range $4.58 – $34.51)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 12

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

BARBARA K. YOUNG M.S.
Counselor
126 E ALCOTT AVE
FERGUS FALLS, MN 56537
Otter Tail County (218) 736-6987
KATHLEEN M SIMPSON CNS
Clinical Nurse Specialist (Psychiatric/Mental Health, Child & Adolescent)
126 E ALCOTT AVE
FERGUS FALLS, MN 56537
Otter Tail County (218) 739-1725
RICARDO P. ASCANO PH.D.
Psychologist (Forensic)
126 E ALCOTT AVE
FERGUS FALLS, MN 56537
Otter Tail County (218) 736-6987
DENNIS D. NIMS MSW
Social Worker (Clinical)
126 E ALCOTT AVE
FERGUS FALLS, MN 56537
Otter Tail County (218) 736-6987
DIANA I. HALL MSW
Social Worker (Clinical)
126 E ALCOTT AVE
FERGUS FALLS, MN 56537
Otter Tail County (218) 736-6987
MARSHA K. KRENZEL-STETSON LADC
Counselor (Addiction (Substance Use Disorder))
126 E ALCOTT AVE
FERGUS FALLS, MN 56537
Otter Tail County (218) 736-6987
MARY K. SCHMIDT PH.D.
Psychologist (Clinical)
126 E ALCOTT AVE
FERGUS FALLS, MN 56537
Otter Tail County (218) 736-6987
DENISE C. WILSON ED.S.
Psychologist
126 E ALCOTT AVE
FERGUS FALLS, MN 56537
Otter Tail County (218) 736-6987

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 Nathanael Larsen's NPI number?

The NPI number for Nathanael Larsen is 1912954728. It was assigned to this individual provider in the NPPES registry on May 27, 2006.

Where is Nathanael Larsen located?

Nathanael Larsen practices at 126 E Alcott Ave, Fergus Falls, MN 56537. The listed phone number is (218) 736-6987.

What is Nathanael Larsen's specialty?

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

Is Nathanael Larsen enrolled in Medicare?

Yes. Nathanael Larsen 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 Nathanael Larsen accept?

Health plans from HealthPartners and Sanford Health Plan list Nathanael Larsen 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 Nathanael Larsen was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 21 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.