ALEXIS HARRISON MD
NPI 1861646382
Internal Medicine - Cardiovascular Disease in Kalispell, MT

Q: What is Alexis Harrison's NPI number?

The NPI number for Alexis Harrison is 1861646382. It was assigned to this individual provider in the NPPES registry on November 11, 2008.

Q: What is Alexis Harrison's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Cardiovascular Disease, with taxonomy code 207RC0000X.

Q: When was this NPI record last updated?

The NPPES record for Alexis Harrison was last updated on November 27, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.

Active since November 11, 2008PECOS EnrolledAccepts Medicare Assignment

350 HERITAGE WAY, SUITE 2100, KALISPELL, MT 59901(406) 257-8992(406) 257-8996 Get Directions Write a Review

NPPES record last updated: November 27, 2023. Verified against the NPPES registry weekly; last sync: November 01, 2026.

On this page

About Alexis Harrison Md NPPES

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

ALEXIS HARRISON MD (NPI 1861646382) is an individual cardiovascular disease provider in Kalispell, Montana, licensed in Montana (41169) and active in the NPI registry since November 2008. She is enrolled in Medicare PECOS, is affiliated with Logan Health Medical Center, and is a graduate of University Of South Florida College Of Medicine (2008).

NPPES Registry Identity

NPI1861646382

Entity TypeIndividualFemale

Primary Taxonomy207RC0000X

Provider Legal NameALEXIS HARRISONCredential: MD

Location Address350 HERITAGE WAY, SUITE 2100Kalispell, MT 59901-3158

Mailing Address350 Heritage Way, Suite 2100Kalispell, MT 59901-3158 · (406) 257-8992 · Fax (406) 257-8996

Phone(406) 257-8992

Fax(406) 257-8996

Sole ProprietorNo

Medical School CMSUniversity Of South Florida College Of MedicineGraduated 2008

Enumeration DateNovember 11, 2008

Last NPPES UpdateNovember 27, 2023

NPPES CertifiedJune 26, 2020

✔ NPI 1861646382 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · Cardiovascular DiseaseAllopathic & Osteopathic Physicians

Taxonomy Code207RC0000X

License✔ Licensed in MT · 41169

Definition

An internist who specializes in diseases of the heart and blood vessels and manages complex cardiac conditions such as heart attacks and life-threatening, abnormal heartbeat rhythms.

Also ListedInternal MedicineTaxonomy 207R00000X · License 41169 (MT)

350 HERITAGE WAY, Kalispell, MT 59901

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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

Alexis Harrison Md 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 ID8123250875

PECOS Enrollment IDI20150813011155

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

Medicare enrollment records show Alexis Harrison reassigns Medicare billing to 5 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

350 HERITAGE WAY STE 1200
Kalispell, MT 59901

Reassigned Medicare billing, Montana enrollment
483 clinicians in this Medicare group

NPI 1770183741 (406) 752-6784

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

Pondera Medical Center

103 mi

Community Health

19 1ST ST NE
Choteau, MT 59422

Reassigned Medicare billing, Montana enrollment
Medicare enrollment name: Logan Health - Conrad
Also billed through NPI 1467445049 (Montana)
64 clinicians in this Medicare group

NPI 1326138579 (406) 271-3211

Logan Health - Shelby

116 mi

Multi-Specialty

670 PARK AVE
Shelby, MT 59474

Reassigned Medicare billing, Montana enrollment
Also billed through NPI 1497742415 (Montana)
62 clinicians in this Medicare group

NPI 1750013991 (406) 966-7040

Liberty County Hospital And Nursing Home, Inc

156 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.

Areas of Expertise CMS Part B claims 29

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.

Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only 93010

A routine electrocardiogram (ECG) with 12 leads is a simple, non-invasive test that records the electrical activity of your heart. It helps in identifying heart conditions by detecting irregularities in your heart rhythms. The results are interpreted and a report is provided.

1,391 services1,110 patients

Ultrasound of heart with color-depicted blood flow, rate, direction and valve function 93306

This is a heart ultrasound, also known as an echocardiogram. It uses sound waves to create pictures of your heart, showing how blood flows through it. The color depicts the blood flow's speed and direction. It also checks the heart's valves to ensure they're working properly.

630 services623 patients

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214

This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.

409 services321 patients

Evaluation of single, dual, multiple lead or leadless pacemaker system, remote up to 90 days 93294

This procedure evaluates your pacemaker system remotely for up to 90 days. It checks whether single, dual, multiple lead, or leadless pacemakers are working properly. It's a safe, convenient way to ensure your heart device is functioning optimally.

284 services96 patients

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233

Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.

194 services105 patients

Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215

This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.

163 services140 patients

Nuclear medicine studies of heart muscle at rest and with stress and spect 78452

Nuclear medicine studies of the heart involve two parts: rest and stress. During rest, images are taken of your heart at ease. During stress, images are taken after exercise or medication-induced stress. SPECT is a special imaging technique providing 3D pictures of your heart, helping identify any issues.

120 services120 patients

Ultrasound of heart with color-depicted blood flow, rate and valve function 93325

An ultrasound of the heart, also known as an echocardiogram, uses sound waves to create pictures of your heart. It shows the structure, movement, and blood flow within your heart. This helps assess the heart's health and function, including the valves and rate.

116 services114 patients

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214

109 services90 patients

Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223

Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.

105 services97 patients

Evaluation of cardiac rhythm monitor system, remote up to 30 days 93298

This procedure involves remotely monitoring your heart rhythm for up to 30 days. A small device will record your heart's activity, which can be accessed by your healthcare team. This aids in diagnosing any irregularities or issues with your heart function.

73 services12 patients

Ultrasound of heart during rest, exercise and/or drug-induced stress with report 93350

This procedure involves using ultrasound imaging to view your heart at rest, during exercise, and/or under drug-induced stress. It helps assess how well your heart responds to exertion. A report of the findings is provided after the test.

62 services62 patients

Ultrasound of heart blood flow, valves and chambers 93320

An ultrasound of your heart, also known as an echocardiogram, is a test that uses sound waves to create detailed images of your heart. It helps doctors check the health of your heart's chambers, valves, and blood flow.

61 services61 patients

Ultrasound of heart blood flow, valves and chambers, follow-up 93321

This procedure, an echocardiogram, uses sound waves to create images of your heart. It aids in assessing your heart's blood flow, chambers, and valves. It's a follow-up procedure, ensuring that your heart is functioning properly post-treatment.

58 services55 patients

Ultrasound of heart, follow-up 93308

A follow-up ultrasound of the heart, also known as an echocardiogram, is a non-invasive test that uses sound waves to create images of your heart. It helps doctors monitor your heart's function and structures after initial assessment or treatment.

52 services49 patients

Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report 93000

An electrocardiogram (ECG) is a non-invasive test that records your heart's electrical activity. Using 12 leads attached to your body, it captures data to help identify heart conditions. A doctor interprets the results and provides a report.

50 services50 patients

Electrocardiogram (ecg) up to 30 days continuous with review and report by health care professional 93228

An Electrocardiogram (ECG) is a non-invasive test that records the electrical signals in your heart. For up to 30 days, a small device will continuously monitor your heart's activity. A healthcare professional will then review the data and provide a report on your heart's function.

39 services39 patients

Ultrasound of heart with color-depicted blood flow, rate, direction and valve function 93306

39 services38 patients

New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more 99205

This is a first-time patient visit where a healthcare professional spends 60-74 minutes with you. It involves a comprehensive evaluation, including your medical history and current health condition. They'll also advise on preventive health measures and formulate a treatment plan if needed.

39 services39 patients

Heart rhythm review, and interpretation of continous external ekg over more than 48 hours up to 7 days 93244

A heart rhythm review involves monitoring your heart's electrical activity for more than 48 hours up to 7 days. Using a device called an external EKG, doctors can track your heartbeats to detect irregularities and help diagnose heart conditions.

36 services35 patients

Heart rhythm review and interpretation of continous external ekg over 8-15 days 93248

This service involves wearing a device for 8-15 days that continuously records your heart's electrical activity. It helps in identifying irregular heart rhythms. The recorded data is then reviewed and interpreted by a healthcare professional for any abnormalities.

34 services34 patients

New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204

This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.

34 services34 patients

Hospital discharge day management, more than 30 minutes 99239

Hospital discharge day management over 30 minutes involves a detailed process to ensure a smooth transition from hospital to home. It includes final examinations, discussion of your hospital stay, post-discharge instructions, and coordinating follow-up care.

33 services33 patients

Electrocardiogram (ecg) 2-day continuous with review by health care professional 93227

An Electrocardiogram (ECG) is a test that checks your heart's activity. The 2-day continuous ECG records your heart's rhythm non-stop for 48 hours. It helps to detect irregularities that may not occur during a shorter test. A healthcare professional will review the results to identify any issues.

30 services29 patients

Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes 99152

This procedure involves a doctor administering a medication to reduce your consciousness during a procedure. This helps in managing discomfort and anxiety. The initial application lasts for 15 minutes and is for individuals aged 5 years or older.

27 services27 patients

External shock to heart to regulate heart beat 92960

This procedure, known as cardioversion, uses an external electrical shock to restore your heart's normal rhythm. It's typically performed when irregular heartbeats, or arrhythmias, are causing severe symptoms and aren't responding to medications.

26 services26 patients

Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215

26 services25 patients

Programming of dual lead pacemaker system 93280

Programming of a dual lead pacemaker system is a procedure to adjust your heart's pacemaker settings. This process involves a small device, called a programmer, that communicates with your pacemaker to ensure it's working optimally for your heart's needs.

18 services17 patients

Ultrasound of heart with probe in esophagus, with report 93312

This procedure, called a transesophageal echocardiogram, uses a small probe passed into your esophagus to capture detailed images of your heart. The report provides information about your heart's structure and function.

17 services17 patients

Hospital Affiliations CMS Care Compare 5

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

Logan Health Medical Center

Acute Care Hospitals · Kalispell, MT

4/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number270051

Location310 Sunnyview LaneKalispell, MT 59901 · Flathead County

Emergency services Birthing friendly

Cabinet Peaks Medical Center

Critical Access Hospitals · Libby, MT

OwnershipVoluntary non-profit - Private

CMS Certification Number271320

Location209 Health Park DrLibby, MT 59923 · Lincoln County

Emergency services

Pondera Medical Center

Critical Access Hospitals · Conrad, MT

OwnershipVoluntary non-profit - Private

CMS Certification Number271324

Location805 Sunset BlvdConrad, MT 59425 · Pondera County

Emergency services

Logan Health - Whitefish

Critical Access Hospitals · Whitefish, MT

5/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number271336

Location1600 Hospital WayWhitefish, MT 59937 · Flathead 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

$70.82 typical visit price

range $18.24 – $140.32

Typical copayment $17.70 (range $4.56 – $35.08)

Most-billed visit code 99213

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 3

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

Supplies for maintenance of non-insulin drug infusion catheter, per week (list drugs separately) A4221

DME-Other DME · category DE017N

1 supplier21 claims21 services$19.33 avg. paid by Medicare

Infusion supplies for external drug infusion pump, per cassette or bag (list drugs separately) A4222

DME-Medical/Surgical Supplies · category DA000N

1 supplier21 claims22 services$37.62 avg. paid by Medicare

Injection, milrinone lactate, 5 mg J2260

Treatment-Injections and Infusions (nononcologic) · category RI026N

1 supplier21 claims352 services$1.30 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 20

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

PARLEY KURT THORDERSON MD

Orthopaedic Surgery (Hand Surgery)

350 HERITAGE WAY, SUITE 1200
KALISPELL, MT 59901

Flathead County (406) 752-6784

RAYMOND TABO SAITO PA

Physician Assistant

350 HERITAGE WAY, SUITE 1200
KALISPELL, MT 59901

Flathead County (406) 752-6784

NATHANIEL LYLE HALL M.D.

Internal Medicine (Interventional Cardiology)

350 HERITAGE WAY, SUITE 2100
KALISPELL, MT 59901

Flathead County (406) 257-8992

DR. DREW L. KIRSHNER M.D.

Thoracic Surgery (Cardiothoracic Vascular Surgery)

350 HERITAGE WAY, STE 2100
KALISPELL, MT 59901

Flathead County (406) 257-8992

ALYSSA M. STONE PA-C

Physician Assistant

350 HERITAGE WAY, SUITE 2100
KALISPELL, MT 59901

Flathead County (406) 257-8992

NORTHWEST MONTANA PULMONARY PHYSICIANS PC

Internal Medicine (Pulmonary Disease)

350 HERITAGE WAY, SUITE 2100
KALISPELL, MT 59901

Flathead County (406) 257-8992

DR. WILLIAM M BOEHME MD

Internal Medicine (Hematology & Oncology)

350 HERITAGE WAY, SUITE 1100
KALISPELL, MT 59901

Flathead County (406) 752-8900

MS. JULIE C PONTI PA-C

Physician Assistant (Medical)

350 HERITAGE WAY, SUITE 1200
KALISPELL, MT 59901

Flathead County (406) 752-6784

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 Alexis Harrison's NPI number?

The NPI number for Alexis Harrison is 1861646382. It was assigned to this individual provider in the NPPES registry on November 11, 2008.

Where is Alexis Harrison located?

Alexis Harrison practices at 350 Heritage Way Suite 2100, Kalispell, MT 59901. The listed phone number is (406) 257-8992.

What is Alexis Harrison's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Cardiovascular Disease, with taxonomy code 207RC0000X.

Is Alexis Harrison enrolled in Medicare?

Yes. Alexis Harrison 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 Alexis Harrison's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Alexis Harrison reassigns Medicare benefits to 5 organizations: Kalispell Regional Medical Center, Inc (Kalispell, MT), Northern Rockies Medical Center, Inc. (Cut Bank, MT), Pondera Medical Center (Choteau, MT), Logan Health - Shelby (Shelby, 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 Alexis Harrison's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Alexis Harrison accept?

Health plans from Blue Cross and Blue Shield of Montana, Mountain Health CO-OP, PacificSource Health Plans and Providence Health Plan list Alexis Harrison 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 Alexis Harrison affiliated with any hospitals?

According to CMS data, Alexis Harrison is affiliated with Logan Health Medical Center, Cabinet Peaks Medical Center, Pondera Medical Center, Logan Health - Whitefish and Providence St Joseph Medical Center.

When was this NPI record last updated?

The NPPES record for Alexis Harrison was last updated on November 27, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.