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MR. DENNIS LEE PETERSON M.D.
NPI 1205986460
Internal Medicine in Kalispell, MT

Active since January 11, 2007PECOS EnrolledAccepts Medicare Assignment
705 6TH AVENUE EAST, KALISPELL, MT 59901(406) 755-7366(406) 755-7277 Get Directions Write a Review

NPPES record last updated: April 8, 2025. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Apr 8, 2025, Jun 26, 2020, Aug 31, 2017 (3 updates tracked since 2017).

About Mr. Dennis Lee Peterson M.d. NPPES

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

MR. DENNIS LEE PETERSON M.D. (NPI 1205986460) is an individual internal medicine provider in Kalispell, Montana, licensed in Montana (MED-PHYS-LIC-4557) and active in the NPI registry since January 2007. He is enrolled in Medicare PECOS, is affiliated with St. Patrick Hospital, and maintains a secondary practice location in Polson.

NPPES Registry Identity

NPI1205986460
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameMR. DENNIS LEE PETERSONCredential: M.D.
Location Address705 6TH AVENUE EASTKalispell, MT 59901-5047
Mailing Address705 6th Ave EKalispell, MT 59901 · (406) 755-7366 · Fax (406) 755-7277
Phone(406) 755-7366
Fax(406) 755-7277
Sole ProprietorYes
Medical School CMSUniversity Of Nebraska College Of MedicineGraduated 1978
Enumeration DateJanuary 11, 2007
Last NPPES UpdateApril 8, 20253 updates tracked since enumeration
NPPES CertifiedApril 8, 2025
✔ NPI 1205986460 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in MT · MED-PHYS-LIC-4557
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
705 6TH AVENUE EAST, Kalispell, MT 59901
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Secondary Practice Location 1

Location 15 4th Ave EPolson, MT 59860-2117 · Phone (406) 745-3525 · Fax (406) 226-2647

Other Identifiers 1

Medicaid0143754MT

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross and Blue Shield of Montana, Mountain Health CO-OP, PacificSource Health Plans and more.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

Mr. Dennis Lee Peterson M.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 ID4789575945
PECOS Enrollment IDI20040324001493
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 Reassignments

4

Medicare enrollment records show Dennis Peterson reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Kalispell Regional Medical Center Inc
Same address
Clinic/Center
705 6TH AVE E
Kalispell, MT 59901
  • Reassigned Medicare billing, Montana enrollment
  • 483 clinicians in this Medicare group
NPI 1366748253 (406) 755-7366
Confederated Salish And Kootenai Tribes Of The Flathead Reservation
61 mi
Federally Qualified Health Center (FQHC)
35401 MISSION DRIVE
Saint Ignatius, MT 59865
  • Reassigned Medicare billing, Montana enrollment
  • 27 clinicians in this Medicare group
NPI 1952402208 (406) 745-3525
Northern Rockies Medical Center, Inc.
96 mi
Rural Health
226 9TH AVE SE
Cut Bank, MT 59427
  • Reassigned Medicare billing, Montana enrollment
  • Also billed through NPI 1831143080 (Montana)
  • 59 clinicians in this Medicare group
NPI 1568416717 (406) 873-5507
Liberty County Hospital And Nursing Home, Inc
155 mi
Rural Health
418 WEST MONROE AVENUE
Chester, MT 59522
  • Reassigned Medicare billing, Montana enrollment
  • Also billed through NPI 1497754782 (Montana)
  • 50 clinicians in this Medicare group
NPI 1003984097 (406) 759-5194

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

Hospital Affiliations CMS Care Compare 2

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

St. Patrick Hospital

Acute Care Hospitals · Missoula, MT
5/5 CMS rating
OwnershipVoluntary non-profit - Church
CMS Certification Number270014
Location500 W BroadwayMissoula, MT 59806 · Missoula County
Emergency services Birthing friendly

Providence St Joseph Medical Center

Critical Access Hospitals · Polson, MT
OwnershipVoluntary non-profit - Private
CMS Certification Number271343
Location6 13th Ave EPolson, MT 59860 · Lake County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 59901 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
$130.52 typical visit price
range $56.81 – $172.26
Typical copayment $32.63 (range $14.20 – $43.06)
Most-billed visit code 99204
Established Patient
$100.16 typical visit price
range $18.24 – $140.32
Typical copayment $25.04 (range $4.56 – $35.08)
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.

Referred Medical Equipment & Supplies CMS DME claims

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Blood glucose test or reagent strips for home blood glucose monitor, per 50 strips A4253
DME-Other DME · category DE017N
9 suppliers31 claims66 services$6.25 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES

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

MRS. MELANIE MARIE ZANDER N.P.
Nurse Practitioner (Adult Health)
705 6TH AVENUE EAST
KALISPELL, MT 59901
Flathead County (406) 755-7366

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 Dennis Peterson's NPI number?

The NPI number for Dennis Peterson is 1205986460. It was assigned to this individual provider in the NPPES registry on January 11, 2007.

Where is Dennis Peterson located?

Dennis Peterson practices at 705 6th Avenue East, Kalispell, MT 59901. The listed phone number is (406) 755-7366.

What is Dennis Peterson's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Dennis Peterson enrolled in Medicare?

Yes. Dennis Peterson 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 organizations bill Medicare for Dennis Peterson's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Dennis Peterson reassigns Medicare benefits to 4 organizations: Kalispell Regional Medical Center Inc (Kalispell, MT), Confederated Salish And Kootenai Tribes Of The Flathead Reservation (Saint Ignatius, MT), Northern Rockies Medical Center, Inc. (Cut Bank, MT) and Liberty County Hospital And Nursing Home, Inc (Chester, MT). Each 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 Dennis Peterson's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Dennis Peterson accept?

Health plans from Blue Cross and Blue Shield of Montana, Mountain Health CO-OP, PacificSource Health Plans and Providence Health Plan list Dennis Peterson 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.

Is Dennis Peterson affiliated with any hospitals?

According to CMS data, Dennis Peterson is affiliated with St. Patrick Hospital and Providence St Joseph Medical Center.

When was this NPI record last updated?

The NPPES record for Dennis Peterson was last updated on April 8, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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.