FIREFLY MENTAL HEALTH LLC
NPI 1033971817
Nurse Practitioner - Psychiatric/Mental Health in Hermantown, MN

NPI Status: Active since January 26, 2024

Contact Information

4891 MILLER TRUNK HWY STE 206
HERMANTOWN, MN
ZIP 55811
Phone: (218) 306-8383
Fax: (218) 875-6315

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  • Organization
  • Nurse Practitioner
  • Psychiatric/Mental Health
  • Accepts Insurance

About FIREFLY MENTAL HEALTH LLC

This page provides the complete NPI Profile along with additional information for Firefly Mental Health Llc, a provider established in Hermantown, Minnesota operating as a Nurse Practitioner, focusing in psychiatric/mental health . The healthcare provider is registered in the NPI registry with number 1033971817 assigned on January 2024. The practitioner's primary taxonomy code is 363LP0808X. The provider is registered as an organization and their NPI record was last updated June 2026. The organization operates as a Single Specialty Group with one or more individual practitioners, all of who practice with the same area of specialization. The authorized official of this NPI record is Karissa Haugen Aprn-pmhnp (Owner)

NPI
1033971817
Provider Name
FIREFLY MENTAL HEALTH LLC
Entity Type
Organization
Location Address
4891 MILLER TRUNK HWY STE 206 HERMANTOWN, MN 55811
Location Phone
(218) 306-8383
Location Fax
(218) 875-6315
Mailing Address
4891 MILLER TRUNK HWY STE 206 HERMANTOWN, MN 55811
Mailing Phone
(218) 306-8383
Mailing Fax
(218) 875-6315
Is Sole Proprietor?
No
Is Organization Subpart?
No
Enumeration Date
01-26-2024
Last Update Date
06-03-2026
Code Navigator

A nurse practitioner (NP) like Firefly Mental Health Llc is an experienced registered nurse with a master’s or doctoral degree and advanced clinical training. Nurse practitioners can work in many different specialties including primary care, pediatrics, cardiology, emergency, women’s health, oncology or geriatrics. Nurse practitioners provide services like physical exams, order laboratory tests, manage diseases, write prescriptions, etc.

Location Map

Secondary Locations

  • 2528 Trinity Rd
    Duluth, MN 55811
    (218) 306-8383
  • 5601 Grand Ave
    Duluth, MN 55807
    (218) 306-8383

Specialty - Primary Taxonomy

The NPI enumerator requires providers to submit at least one taxonomy code. A taxonomy code is a unique 10-character code that describes the healthcare provider type, classification, and the area of specialization. There could be only one primary taxonomy code per NPI record. For individual NPIs the license data is associated to the taxonomy code.

Classification

Nurse Practitioner Psychiatric/Mental Health

Taxonomy Code
363LP0808X
Type
Physician Assistants & Advanced Practice Nursing Providers

Group Taxonomy 193400000X SINGLE SPECIALTY GROUP

This provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.

Insurance Plans Accepted

According to publicly available information the provider might be accepting the following health plans from these health insurance companies:

  • Atlas $1,300 Gold - PPO
  • Atlas $2,000 Standard Gold - PPO
  • Atlas $3,050 Plus Silver - PPO
  • Atlas $3,800 HSA Silver - PPO
  • Atlas $6,000 Standard Silver - PPO
  • Atlas $6,800 Plus Bronze HSA - PPO
  • Atlas $7,500 Standard Bronze HSA - PPO
  • Atlas $8,400 HSA Bronze - PPO

*Please verify directly with this provider to make sure your insurance plan is currently accepted.

Authorized Official

The authorized official is the designated individual with the legal authority to make changes to the provider’s official NPI record. For organizations, the authorized official must be a general partner, chairman of the board, CEO, CFO or a direct owner holding at least a 5 percent stake in the medical organization.

Authorized Official Name

KARISSA HAUGEN APRN-PMHNP

Authorized Official Title
OWNER
Authorized Official Phone
(218) 306-8383

Reviews for FIREFLY MENTAL HEALTH LLC

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NPI NPI Number Validation

How NPI Validation Works

The NPI validation process uses the ISO-standard Luhn algorithm, a mathematical "handshake", to ensure that a provider's 10-digit ID is authentic and free of common typing errors.

To verify the NPI 1033971817, we treat the final digit (7) as the Check Digit—the target answer we need to reach. The process begins by taking the first nine digits and adding a constant value of 24, which accounts for the "80840" prefix required for all U.S. health identifiers. We then double every other digit starting from the right and sum the individual digits of those results together. For this specific NPI, that total comes to 63. The final step is to find the difference between that total and the next multiple of ten (70 - 63 = 7).

Digit-by-digit view

Use the first nine digits for the calculation. Starting from the right, double every other digit. The last digit is the check digit and is not part of the calculation.

Pos 1
1
Doubled → 2
Pos 2
0
Unchanged
Pos 3
3
Doubled → 6
Pos 4
3
Unchanged
Pos 5
9
Doubled → 18 → 1 + 8
Pos 6
7
Unchanged
Pos 7
1
Doubled → 2
Pos 8
8
Unchanged
Pos 9
1
Doubled → 2
Check
7
Target digit
Regular digit Doubled digit Check digit

Step 1: Double every other digit from the right

Starting with the rightmost digit of the first nine digits, double every other value. If doubling creates a two-digit number, add those digits together.

1 → 2 3 → 6 9 → 18 → 9 1 → 2 1 → 2

Step 2: Add all digits plus the NPI constant

Add the transformed values, the unchanged digits, and the constant 24.

2 + 0 + 6 + 3 + 1 + 8 + 7 + 2 + 8 + 2 + 24 = 63

Step 3: Find the amount needed to reach the next multiple of 10

The next multiple of ten after 63 is 70. The difference is the calculated check digit.

70 - 63 = 7
This NPI is valid
The calculated check digit is 7, which matches the last digit of 1033971817.

Other Providers at the Same Location


The following 3 providers are registered at the same or a nearby location.

Behavior Analyst
4891 MILLER TRUNK HWY STE 206
HERMANTOWN, MN 55811
Nurse Practitioner (Psychiatric/Mental Health)
4891 MILLER TRUNK HWY STE 206
HERMANTOWN, MN 55811
Nurse Practitioner (Psychiatric/Mental Health)
4891 MILLER TRUNK HWY STE 206
HERMANTOWN, MN 55811

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1033971817, enumerated as an "organization" on January 26, 2024.

The provider is located at 4891 MILLER TRUNK HWY STE 206 HERMANTOWN, MN 55811 and the phone number is (218) 306-8383.

Nurse Practitioner with taxonomy code 363LP0808X and a focus in Psychiatric/Mental Health.

The provider might be accepting Accepts: HealthPartners. Please consult your insurance carrier or call the provider to verify.