DR. WILLIAM GIBSON SIMPSON M.D.
NPI 1487655346
Internal Medicine - Gastroenterology in Kalispell, MT

Q: What is William Simpson's NPI number?

The NPI number for William Simpson is 1487655346. It was assigned to this individual provider in the NPPES registry on August 2, 2005.

Q: What is William Simpson's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.

Q: When was this NPI record last updated?

The NPPES record for William Simpson was last updated on November 27, 2023. NPI Profile syncs with the weekly NPPES data releases published by CMS.

Active since August 02, 2005PECOS EnrolledAccepts Medicare Assignment

320 SUNNYVIEW LN, KALISPELL, MT 59901(406) 752-7441 Get Directions Write a Review

NPPES record last updated: November 27, 2023. Verified against the NPPES registry weekly; last sync: July 26, 2026.

On this page

About Dr. William Gibson Simpson M.d. NPPES

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

DR. WILLIAM GIBSON SIMPSON M.D. (NPI 1487655346) is an individual gastroenterology provider in Kalispell, Montana, licensed in Montana (79718) and active in the NPI registry since August 2005. He is enrolled in Medicare PECOS, is affiliated with Logan Health Medical Center, and is a graduate of University Of Kentucky College Of Medicine (1998).

NPPES Registry Identity

NPI1487655346

Entity TypeIndividualMale

Primary Taxonomy207RG0100X

Provider Legal NameDR. WILLIAM GIBSON SIMPSONCredential: M.D.

Location Address320 SUNNYVIEW LNKalispell, MT 59901-3129

Mailing Address320 Sunnyview LnKalispell, MT 59901-3129 · (406) 752-7441

Phone(406) 752-7441

Sole ProprietorNo

Medical School CMSUniversity Of Kentucky College Of MedicineGraduated 1998

Enumeration DateAugust 2, 2005

Last NPPES UpdateNovember 27, 2023

NPPES CertifiedJune 29, 2020

✔ NPI 1487655346 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · GastroenterologyAllopathic & Osteopathic Physicians

Taxonomy Code207RG0100X

Licenses✔ Licensed in MT · 79718✔ Licensed in OK · 30937✔ Licensed in TX · J5017

Definition

An internist who specializes in diagnosis and treatment of diseases of the digestive organs including the stomach, bowels, liver and gallbladder. This specialist treats conditions such as abdominal pain, ulcers, diarrhea, cancer and jaundice and performs complex diagnostic and therapeutic procedures using endoscopes to visualize internal organs.

320 SUNNYVIEW LN, Kalispell, MT 59901

Open in Google Maps ↗

Other Identifiers 1

Medicaid105169003TX

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross and Blue Shield of Oklahoma, Medica, Mending Health and more.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

Dr. William Gibson Simpson 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 ID9234129313

PECOS Enrollment IDI20150122000888

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 20

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.

Removal of polyps or growths of large bowel using an endoscope with mechanical snare 45385

This procedure involves using a thin, flexible tube called an endoscope to examine the large bowel. If any abnormal growths or polyps are found, a tool called a mechanical snare is used to remove them. This is a common method to prevent potential health issues.

156 services154 patients

Balloon dilation of esophagus, stomach, and/or upper small bowel using a flexible endoscope, less than 3.0 cm 43249

This procedure involves using a flexible tube with a camera, called an endoscope, to gently expand narrowed areas in your esophagus, stomach, or upper small bowel. A small balloon is inflated, making it easier for food and liquid to pass through. It's safe and effective.

107 services99 patients

Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope 43239

This procedure involves using a thin, flexible tube with a light and camera, known as an endoscope, to examine the esophagus, stomach, and upper part of the small intestine. Small tissue samples are taken for further examination to help diagnose various conditions.

99 services99 patients

Biopsy of large bowel using a flexible endoscope 45380

A biopsy of the large bowel using a flexible endoscope is a procedure where a thin, flexible tube with a camera is inserted through the rectum to examine the bowel. If abnormal tissue is found, a small sample is taken for further examination. This helps in diagnosing conditions like inflammation, polyps, or cancer.

59 services59 patients

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213

This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.

51 services49 patients

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213

47 services44 patients

Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope 43235

This procedure, known as an upper endoscopy, involves inserting a thin, flexible tube with a camera down the throat to examine the esophagus, stomach, and upper small bowel. It helps diagnose conditions like ulcers or inflammation.

42 services42 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.

40 services37 patients

Colorectal cancer screening; colonoscopy on individual at high risk G0105

Colorectal cancer screening, specifically a colonoscopy, is a preventive measure for those at high risk. A thin, flexible tube with a camera inspects the colon to spot any abnormal growths. This test helps detect potential issues early, enhancing the effectiveness of treatment.

37 services37 patients

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

33 services27 patients

Measurement of liver stiffness 91200

Measurement of liver stiffness is a non-invasive procedure that helps assess the health of your liver. It uses sound waves to detect the hardness of the liver tissue, which can indicate conditions like fibrosis or cirrhosis. It's a simple, painless test that provides valuable information about your liver's health.

28 services28 patients

Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk G0121

Colorectal cancer screening, such as a colonoscopy, is a preventive measure to detect early signs of cancer in the large intestine. For individuals not at high risk, it's typically recommended at age 50. A small, flexible tube with a camera is used to examine your colon. It's a safe, effective way to catch issues early.

27 services27 patients

Diagnostic exam of large bowel using a flexible endoscope 45378

This procedure, known as a colonoscopy, involves using a flexible tube with a light and camera to examine the large intestine. It helps detect any abnormalities such as polyps or inflammation. It's a standard procedure to ensure gut health.

25 services25 patients

Imaging of digestive tract done from the inside of the digestive tract 91110

This procedure, known as an endoscopy, involves a small camera being passed into the digestive tract. It helps doctors to see the inside of your digestive system in detail. This can aid in diagnosing conditions or planning treatments. It's generally safe and can provide valuable information.

24 services22 patients

Monitoring and recording of esophageal function through a capsule attached to the esophagus wall 91035

This procedure involves a small capsule being attached to your esophagus wall. It measures and records how your esophagus is functioning, helping to identify any potential issues. You won't feel the capsule and it will pass naturally through your system after a few days.

21 services21 patients

Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more 99212

This is a routine check-up for patients who have previously seen the doctor. During this 10-19 minute visit, the doctor will review your health status, discuss any concerns, and manage ongoing treatments or medications. It's a chance to ensure your health is on track.

20 services14 patients

Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 99222

Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.

18 services18 patients

Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes 99231

Follow-up hospital inpatient care is a daily service where a healthcare professional checks on your health progress during your hospital stay. Each session typically lasts 15 minutes, involving updates on your condition and adjustments to your treatment plan, if necessary.

18 services15 patients

New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more 99203

This service involves an initial office or outpatient visit for a new patient. The healthcare professional will spend 30-44 minutes understanding your health history, current issues, and discussing possible treatment plans. It's a comprehensive evaluation to start your healthcare journey.

17 services17 patients

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232

Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.

15 services13 patients

Hospital Affiliations CMS Care Compare 3

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

Northeastern Health System

Acute Care Hospitals · Tahlequah, OK

2/5 CMS rating

OwnershipGovernment - Hospital District or Authority

CMS Certification Number370089

Location1400 East Downing StreetTahlequah, OK 74465 · Cherokee County

Emergency services Birthing friendly

Cherokee Nation W W Hastings Indian Hospital

Acute Care Hospitals · Tahlequah, OK

3/5 CMS rating

OwnershipVoluntary non-profit - Other

CMS Certification Number370171

Location100 S Bliss AvenueTahlequah, OK 74464 · Cherokee 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.

Leave this field empty

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.

STEPHANIE K EASTBURN PA-C

Physician Assistant